S7-1200 Programmable controller - S7-1200 - 20

Title: S7-1200 Programmable controller
Product: S7-1200
Version: V20
Publication date: 11/2024
Language: en-US
Version: 20

Introduction
General information
Maintaining operational safety of your plant
S7-1200 documentation guide
SIMATIC Technical Documentation
SIMATIC Technical Documentation
Tool support
Cybersecurity information
Cybersecurity information
Product overview
Introducing the S7-1200 PLC
Expansion capability of the CPU
S7-1200 modules
HMI panels
New features
STEP 7 programming software
TIA Portal
Different views to make the work easier
Compatibility between STEP 7 and the S7-1200
Installation
Guidelines for installing S7-1200 devices
Power budget
Installation and removal procedures
Mounting dimensions for the S7-1200 devices
Installing and removing the S7-1200 modules
Installing and removing the CPU
Installing and removing an SB, CB, or BB
Installing and removing an SM
Installing and removing a CM or CP
Removing and reinstalling the S7-1200 terminal block connector
Installing and removing the expansion cable
Wiring guidelines
Guidelines for grounding and wiring
Guidelines for isolation
Guidelines for grounding the S7-1200
Guidelines for wiring the S7-1200
Guidelines for lamp loads
Guidelines for inductive loads
Guidelines for differential inputs and outputs
Maintenance and repair
PLC concepts
Execution of the user program
Code blocks for structuring your program
Execution of the user program
Startup configuration and processing
Processing the scan cycle in RUN mode
Organization blocks (OBs)
Organization blocks (OBs)
Program cycle OB
Startup OB
Time delay interrupt OB
Cyclic interrupt OB
Hardware interrupt OB
Time error interrupt OB
Diagnostic error interrupt OB
Pull or plug of modules OB
Rack or station failure OB
Time of day OB
Status OB
Update OB
Profile OB
MC-Servo and MC-Interpolator OB
MC-PreServo
MC-PostServo
Event execution priorities and queuing
Monitoring and configuring the cycle time
Cycle time and communication load
CPU memory
Memory management
Notes about retentive memory
System and clock memory
Diagnostics buffer
Time of day clock
Configuring the outputs on a RUN-to-STOP transition
Data storage, memory areas, I/O, and addressing
Accessing the data of the CPU
Using absolute addressing to access CPU data
Addressing the local and expansion I/O
Processing of analog values
Data types
Data types
Bool, Byte, Word, and DWord data types
Integer data types
Floating-point real data types
Time and Date data types
Character and String data types
Array data type
Data structure data type
PLC data type
Variant pointer data type
Accessing a "slice" of a tagged data type
Accessing a tag with an AT overlay
Using a memory card
Memory cards
Inserting a memory card in the CPU
Configuring the startup parameter of the CPU before copying the project to the memory card
Transfer card
Program card
Using a memory card for protecting confidential PLC configuration data
Firmware update
Firmware update card
Required user action
Recovery from a lost password
Device configuration
Overview (HW Config)
Inserting a CPU
Uploading the configuration of a connected CPU
Adding modules to the configuration
Configuration control
Advantages and applications of configuration control
Configuring the central installation and optional modules
Example of configuration control
Changing a device
Configuring the operation of the CPU
CPU properties
Configuring the onboard I/O
Configuring digital input filter times
Pulse catch
Configuring multilingual support
Protection & security
Using the security wizard to set PLC security settings
Protection of confidential PLC configuration data
User Management & Access Control (UMAC)
Access control for the S7-1200 CPU
Configuring connection mechanisms
Setting access mechanism for remote partners
Enabling secure PG/PC and HMI communication and creating certificates
Syslog server
External load memory
Know-how protection
Write protection
Copy protection
Configuring the parameters of the modules
Configuring the CPU for communication
Time synchronization
Programming concepts
Guidelines for designing a PLC system
Structuring your user program
Using blocks to structure your program
Calling blocks from within your program
Organization block (OB)
Configuring the properties of an OB
Function (FC)
Function block (FB)
Data block (DB)
Creating reusable code blocks
Passing parameters to blocks
Understanding data consistency
Programming language
Programming languages supported by S7-1200
Ladder logic (LAD)
Function Block Diagram (FBD)
SCL
SCL
SCL program editor
SCL expressions and operations
Indexed addressing with PEEK and POKE instructions
EN and ENO for LAD, FBD and SCL
Downloading the elements of your program
Synchronizing the online CPU and offline project
Uploading from the online CPU
Uploading elements of the project
Comparing the online CPU to the offline CPU
Debugging and testing the program
Monitor and modify data in the CPU
Watch tables and force tables
Cross reference to show usage
Call structure to examine the calling hierarchy
Basic instructions
Bit logic operations
Bit logic instructions
Set and reset instructions
Positive and negative edge instructions
Timer operations
Timer instructions (IEC timers)
Timer operation (IEC timers)
Counter operations
Counter instructions (IEC counters)
Counter operation (IEC counters)
Comparator operations
Compare values instructions
IN_Range (Value within range) and OUT_Range (Value outside range)
OK (Check validity) and NOT_OK (Check invalidity)
Variant and array comparison instructions
Equality and non-equality comparison instructions
Null comparision instructions
IS_ARRAY (Check for ARRAY)
Math functions
CALCULATE (Calculate)
Add, subtract, multiply and divide instructions
MOD (return remainder of division)
NEG (Create twos complement)
INC (Increment) and DEC (Decrement)
ABS (Form absolute value)
MIN (Get minimum) and MAX (Get maximum)
LIMIT (Set limit value)
Exponent, logarithm, and trigonometry instructions
Move operations
MOVE (Move value), MOVE_BLK (Move block), UMOVE_BLK (Move block uninterruptible), and MOVE_BLK_VARIANT (Move block)
Deserialize
Serialize
FILL_BLK (Fill block) and UFILL_BLK (Fill block uninterruptible)
SCATTER
SCATTER_BLK
GATHER
GATHER_BLK
SWAP (Swap bytes)
Read / Write memory instructions
PEEK and POKE (SCL only)
Read and write big and little Endian instructions (SCL)
Variant instructions
VariantGet (Read VARIANT tag value)
VariantPut (Write VARIANT tag value)
CountOfElements (Get number of ARRAY elements)
Array instructions
LOWER_BOUND: (Read out ARRAY low limit)
UPPER_BOUND: (Read out ARRAY high limit)
Legacy instructions
FieldRead (Read field) and FieldWrite (Write field) instructions
Conversion operations
CONV (Convert value)
Conversion instructions for SCL
ROUND (Round numerical value) and TRUNC (Truncate numerical value)
CEIL and FLOOR (Generate next higher and lower integer from floating-point number)
SCALE_X (Scale) and NORM_X (Normalize)
Variant conversion instructions
VARIANT_TO_DB_ANY (Convert VARIANT to DB_ANY)
DB_ANY_TO_VARIANT (Convert DB_ANY to VARIANT)
Program control operations
JMP (Jump if RLO = 1), JMPN (Jump if RLO = 0), and Label (Jump label) instructions
JMP_LIST (Define jump list)
SWITCH (Jump distributor)
RET (Return)
ENDIS_PW (Enable/disable CPU passwords)
RE_TRIGR (Restart cycle monitoring time)
STP (Exit program)
GET_ERROR and GET_ERROR_ID (Get error and error ID locally) instructions
RUNTIME (Measure program runtime)
SCL program control statements
Overview of SCL program control statements
IF-THEN
CASE
FOR
WHILE-DO
REPEAT-UNTIL
CONTINUE
EXIT
GOTO
RETURN
Word logic operations
AND, OR, and XOR logic operation instructions
INV (Create ones complement)
DECO (Decode) and ENCO (Encode) instructions
SEL (Select), MUX (Multiplex), and DEMUX (Demultiplex) instructions
Shift and rotate
SHR (Shift right) and SHL (Shift left) instructions
ROR (Rotate right) and ROL (Rotate left) instructions
Extended instructions
Date, time-of-day, and clock functions
Date and time-of-day instructions
Clock functions
SET_TIMEZONE (Set timezone)
RTM (Runtime meters)
String and character
String data overview
S_MOVE (Move character string)
String conversion instructions
S_CONV, STRG_VAL, and VAL_STRG (Convert to/from character string and number) instructions
Strg_TO_Chars and Chars_TO_Strg (Convert to/from character string and array of CHAR) instructions
ATH and HTA (Convert to/from ASCII string and hexadecimal number) instructions
String operation instructions
MAX_LEN (Maximum length of a character string)
LEN (Determine the length of a character string)
CONCAT (Combine character strings)
LEFT, RIGHT, and MID (Read substrings in a character string) instructions
DELETE (Delete characters in a character string)
INSERT (Insert characters in a character string)
REPLACE (Replace characters in a character string)
FIND (Find characters in a character string)
Runtime information
GetSymbolName (Read out a tag on the input parameter)
GetSymbolPath (Query composite global name of the input parameter assignment)
GetInstanceName (Read out name of the block instance)
GetInstancePath (Query composite global name of the block instance)
GetBlockName (Read out name of the block)
Distributed I/O (PROFINET, PROFIBUS, or AS-i)
RDREC and WRREC (Read/write data record)
GETIO (Read process image)
SETIO (Transfer process image)
GETIO_PART (Read process image area)
SETIO_PART (Transfer process image area)
RALRM (Receive interrupt)
D_ACT_DP (Enable/disable PROFINET IO devices)
STATUS parameter for RDREC, WRREC, and RALRM
Others
DPRD_DAT and DPWR_DAT (Read/write consistent data)
RCVREC (Receive data record)
PRVREC (Make data record available)
DPNRM_DG (Read diagnostic data from a PROFIBUS DP slave)
PROFIenergy
Interrupts
ATTACH and DETACH (Attach/detach an OB and an interrupt event) instructions
Cyclic interrupts
SET_CINT (Set cyclic interrupt parameters)
QRY_CINT (Query cyclic interrupt parameters)
Time of day interrupts
NTP Security overview
SET_TINTL (Set time of day interrupt)
CAN_TINT (Cancel time of day interrupt)
ACT_TINT (Activate time of day interrupt)
QRY_TINT (Query status of time of day interrupt)
Time delay interrupts
DIS_AIRT and EN_AIRT (Delay/enable execution of higher priority interrupts and asynchronous error events) instructions
Alarms
Gen_UsrMsg (Generate user diagnostic alarms)
Diagnostics (PROFINET or PROFIBUS)
RD_SINFO (Read current OB start information)
LED (Read LED status)
Get_IM_Data (Read the identification and maintenance data)
Get_Name (Read the name of a PROFINET IO device)
GetStationInfo (Read the IP or MAC address of a PROFINET IO device)
DeviceStates instruction
DeviceStates (Read module status of an I/O system)
DeviceStates example configurations
ModuleStates instruction
ModuleStates (Read module status information of a module)
ModuleStates example configurations
GET_DIAG (Read diagnostic information)
GetSMCInfo (Reading out information about the memory card)
Pulse
CTRL_PWM (Pulse width modulation)
CTRL_PTO (Pulse train output)
Operation of the pulse outputs
Configuring a pulse channel for PWM or PTO
Recipes and Data logs
Recipes
Recipe overview
Recipe example
Program instructions that transfer recipe data
RecipeExport (Recipe export)
RecipeImport (Recipe import)
Recipe example program
Data logs
Data log overview
Data log record structure
Program instructions that control data logs
DataLogCreate (Create data log)
DataLogOpen (Open data log)
DataLogWrite (Write data log)
DataLogClear (Empty data log)
DataLogClose (Close data log)
DataLogDelete (Delete data log)
DataLogNewFile (Data log in new file)
Working with data logs
Limit to the size of data log files
Data log example program
Data block control
CREATE_DB (Create data block)
READ_DBL and WRIT_DBL (Read/write a data block in load memory) instructions
ATTR_DB (Read data block attribute)
DELETE_DB (Delete data block)
Address handling
GEO2LOG (Determine the hardware identifier from the slot)
LOG2GEO (Determine the slot from the hardware identifier)
IO2MOD (Determine the hardware identifier from an I/O address)
RD_ADDR (Determine the IO addresses from the hardware identifier)
GEOADDR system data type
Common error codes for the Extended instructions
File handling
FileReadC: Read file from the memory card
FileWriteC: Write file on the memory card
FileDelete: Delete file on the memory card
Technology instructions
Counting (High-speed counters)
Overview
CTRL_HSC_EXT (Control high-speed counter, extended)
CTRL_HSC_EXT (Control high-speed counter, extended)
CTRL_HSC_EXT example
CTRL_HSC_EXT Instruction System Data Types (SDT)
Overview
SDT: HSC_Count
SDT: HSC_Period
SDT: HSC_Frequency
Operating the high-speed counter
Synchronization function
Gate function
Capture function
Compare function
Application
Configuring a high-speed counter
Overview
Type of Counting
Operating phase
Initial values
Input functions
Output function
Overview
Compare output
Interrupt events
Hardware input pin assignment
Hardware output pin assignment
HSC input memory addresses
Hardware identifier
Legacy CTRL_HSC (Control high-speed counter) instruction
CTRL_HSC (Control high-speed counter)
Using CTRL_HSC
HSC current count value
Motion control
Motion control overview
Hardware components for motion control
Motion control instructions
MC instruction overview
MC_Power (Release/block axis)
MC_Reset (Confirm error)
MC_Home (Home axis)
MC_Halt (Pause axis)
MC_MoveAbsolute (Position axis absolutely)
MC_MoveRelative (Position axis relatively)
MC_MoveVelocity (Move axis at predefined velocity)
MC_MoveJog (Move axis in jog mode)
MC_CommandTable (Run axis command as movement sequence)
MC_WriteParam (write parameters of a technology object)
MC_ReadParam instruction (read parameters of a technology object)
MC_ChangeDynamic (Change dynamic settings for the axis)
PID control
PID functionality
PID instructions
PID_Compact instruction
PID_3Step instruction
PID_Temp instruction
Communication
Overview
Secure vs. legacy communication
Communication protocols and ports used by Ethernet communication
Asynchronous communication connections
Supported certificates
PROFINET
CPU communication
Creating a network connection
Configuring the Local/Partner connection path
Assigning Internet Protocol (IP) addresses
Assigning IP addresses to programming and network devices
Checking the IP address and MAC address of your network interface
Assigning an IP address to a CPU online
Configuring an IP address for a CPU in your project
Testing the PROFINET network
Locating the Ethernet (MAC) address on the CPU
Configuring Network Time Protocol (NTP) synchronization
PROFINET device start-up time, naming, and address assignment
Open user communication
Protocols
TCP and ISO on TCP
TCP
ISO on TCP
Ad hoc mode
Communication services and used port numbers
Connection IDs for the Open user communication instructions
Parameters for the PROFINET connection
Supported TLS versions
Configuring DNS
Configuring an OUC connection in the TIA Portal
TSEND_C and TRCV_C instructions
Overview
TSEND_C and TRCV_C (Send and receive data using Ethernet)
Legacy TSEND_C and TRCV_C instructions
Overview
Legacy TSEND_C and TRCV_C (Send and receive data using Ethernet)
TCON, TDISCON, TSEND, and TRCV instructions
Overview
TCON, TDISCON, TSEND, and TRCV (TCP communication) instructions
TCONSettings
Overview
Request a connection ID and if necessary, specify a connection property
Reading a property of a prepared or an existing connection
Specifying a property of a prepared or an existing connection
Which connection properties can be read or specified
Terminating a TCP connection
Legacy TCON, TDISCON, TSEND, and TRCV instructions
Overview
Legacy TCON, TDISCON, TSEND, and TRCV (TCP communication) instructions
T_RESET (Terminate and re-establish an existing connection) instruction
T_DIAG (Checks the status of connection and reads information) instruction
TMAIL_C (Send an email using the Ethernet interface of the CPU) instruction
Overview
MAIL_ADDR_PARAM parameter
TO_S and CC parameters
DONE, BUSY and ERROR parameters
Sending data logs, recipes, and user files using email attachments
Error condition codes
STATUS parameter
SFB_STATUS parameter of the instance DB
UDP
TUSEND and TURCV
TUSEND and TURCV (UDP communication) instructions
TUSEND and TURCV operations
T_CONFIG
T_CONFIG (Configure interface) Instruction
CONF_DATA Data block
Example: Using the T_CONFIG instruction to change IP parameters
Example: Using the T_CONFIG instruction to change IP parameters and PROFINET IO device names
Example: Using the T_CONFIG instruction to change IP addresses in the NTP servers
Common parameters for instructions
Restricted TSAPs or port numbers for passive ISO and TCP communication
Communication with a programming device
Overview
Establishing the hardware communications connection
Configuring the devices
Assigning Internet Protocol (IP) addresses
Testing your PROFINET network
HMI-to-PLC communication
Overview
Configuring logical network connections between two devices
PLC-to-PLC communication
Overview
Configuring logical network connections between two devices
Configuring the Local/Partner connection path between two devices
Configuring transmit (send) and receive parameters
Configuring transmit (send) and receive parameters
Configuring the TSEND_C instruction transmit (send) parameters
Configuring the TRCV_C instruction receive parameters
Configuring a CPU and PROFINET IO device
Adding a PROFINET IO device
Assigning CPUs and device names
Assigning Internet Protocol (IP) addresses
Configuring the IO cycle time
Configuring a CPU and PROFINET I-device
I-device functionality
Properties and advantages of the I-device
Characteristics of an I-device
Data exchange between higher- and lower-level IO system
Configuring the I-device
Shared devices
Shared device functionality
Example: Configuring a shared device (GSD configuration)
Example: Configuring an I-device as a shared device
Media Redundancy Protocol (MRP)
Overview
Media redundancy with ring topologies
Using Media Redundancy Protocol (MRP)
Configuring media redundancy
S7 routing
Overview
S7 routing between CPU and CP interfaces
S7 routing between two CP interfaces
SNMP
Diagnostics
Distributed I/O and diagnostic instructions
PROFIBUS
Overview
Always update the PROFIBUS CM firmware to the latest version available
Communications services of the PROFIBUS CMs
Reference to the PROFIBUS CM user manuals
Configuring a DP master and slave device
Adding the CM 1243-5 (DP master) module and a DP slave
Configuring logical network connections between two PROFIBUS devices
Assigning PROFIBUS addresses to the CM 1243-5 module and DP slave
Distributed I/O and diagnostic instructions
AS-i
Overview
Always update the AS-i CM firmware to the latest version available
Configuring an AS-i master and slave device
Overview
Adding the AS-i master CM 1243-2 and AS-i slave
Configuring logical network connections between two AS-i devices
Configuring the properties of the AS-i master CM1243-2
Assigning an AS-i address to an AS-i slave
Exchanging data between the user program and AS-i slaves
STEP 7 configuration
Configuring AS-i slaves with STEP 7
Distributed I/O instructions
Working with AS-i online tools
S7 communication
GET and PUT (Read and write from a remote CPU)
Creating an S7 connection
Configuring the Local/Partner connection path between two devices
GET/PUT connection parameter assignment
Overview
Connection parameters
Overview
Connection ID parameter
Connection name parameter
Configuring a CPU-to-CPU S7 connection
Overview
Configuring a PROFINET S7 connection
Configuring a PROFIBUS S7 connection
Diagnostic events for distributed I/O
What to do when you cannot access the CPU by the IP address
OPC UA Server
Overview of OPC UA server communications
OPC UA server configuration
Overview of OPC UA server configuration
Activating the OPC UA server
Behavior of the OPC UA server in operation
Settings for the OPC UA server
Limitations of the OPC UA server
OPC UA server security
Overview of OPC UA server security
Supported security policies
Trusted clients
Assigning OPC UA user rights for V4.7 configured CPUs
Authenticating OPC UA users for CPUs with project configurations earlier than V4.7
OPC UA user compatibility
OPC UA server interface
Overview of the OPC UA server interface
Supported data types
PLC representation
Downloadable server interfaces
OPC UA Diagnostics Buffer
Overview of OPC UA diagnostics buffer
OPC UA Limits reached
OPC UA Security events
OPC UA Server connection information
OPC UA Wrong usage
Summary messages for OPC UA
OPC UA Method calls
Useful information about server methods
Boundary conditions for using server methods
Web server
Web server overview
Enabling the Web server
Web server user management
Assigning Web server user privileges for V4.7 configured CPUs
Assigning Web server user privileges for CPU project configurations earlier than V4.7
User configuration compatibility
Accessing the Web pages from a PC
Accessing the Web pages from a mobile device
Using a CP module to access Web pages
Web server security certificates
Standard Web pages
Layout of the standard Web pages
Basic pages
Logging in and user privileges
Introduction
Start
Diagnostics
Diagnostics Buffer
Module Information
Updating firmware
Communication
Tag status
Watch tables
Online backup
Data Logs
User Files
Data Log UserFiles API
File Browser
User-defined Web pages
Overview of user-defined Web pages
Creating HTML pages
AWP commands supported by the S7-1200 Web server
AWP commands supported by the S7-1200 web server
Reading variables
Writing variables
Reading special variables
Writing special variables
Using an alias for a variable reference
Defining enum types
Referencing CPU variables with an enum type
Creating fragments
Importing fragments
Combining definitions
Handling tag names that contain special characters
Configuring use of user-defined Web pages
Configuring the entry page
Programming the WWW instruction for user-defined web pages
Downloading the program blocks to the CPU
Accessing the user-defined Web pages
Constraints specific to user-defined Web pages
Example of a user-defined web page
Web page for monitoring and controlling a wind turbine
Reading and displaying controller data
Using an enum type
Writing user input to the controller
Writing a special variable
Reference: HTML listing of remote wind turbine monitor Web page
Configuration in STEP 7 of the example Web page
Setting up user-defined Web pages in multiple languages
Introduction
Creating the folder structure
Programming the language switch
Configuring STEP 7 to use a multi-language page structure
Advanced user-defined Web page control
Web API
Constraints
Constraints
Use of JavaScript
Feature restrictions when the Internet options do not allow cookies
Rules for entering tag names and values
Importing CSV format data logs to non-USA/UK versions of Microsoft Excel
Communication processor and Modbus TCP
Using the serial communication interfaces
Biasing and terminating an RS485 network connector
Point-to-point (PtP) communication
Overview
PtP, Freeport communication
3964(R) communication
Configuring the PtP Freeport communication
Configuring the communication ports
Managing flow control
Configuring transmit (send) and receive parameters
Configuring transmit (send) parameters
Configuring receive parameters
Configuring 3964(R) communication
Configuring the 3964(R) communication ports
Configuring the 3964(R) priority and protocol parameters
Point-to-point instructions
Common parameters for Point-to-Point instructions
Condition codes
Port_Config (Configure communication parameters dynamically)
Send_Config (Configure serial transmission parameters dynamically)
Receive_Config (Configure serial receive parameters dynamically)
P3964_Config (Configuring the 3964(R) protocol)
Send_P2P (Transmit send buffer data)
LEN and DATA parameter usage for communication instructions
Receive_P2P (Enable receive messages)
Receive_Reset (Delete receive buffer)
Signal_Get (Query RS-232 signals)
Signal_Set (Set RS-232 signals)
Get_Features
Set_Features
Programming the PtP communications
Programming overview
Polling architecture
Example: Point-to-Point communication
Example: Point-to-Point communication
Configuring the communication module
RS422 and RS485 operating modes
Programming the STEP 7 program
Configuring the terminal emulator
Running the example program
Universal serial interface (USS) communication
Overview
USS instructions
USS_Port_Scan (Edit communication using USS network)
USS_Drive_Control (Swap data with drive)
USS_Read_Param (Readout parameters from the drive)
USS_Write_Param (Change parameters in the drive)
USS status codes
USS general drive setup requirements
Example: USS general drive connection and setup
Modbus communication
Overview of Modbus TCP and Modbus RTU communication
Modbus TCP
Overview
Modbus TCP instructions
MB_CLIENT (Communicate using PROFINET as Modbus TCP client) instruction
MB_SERVER (Communicate using PROFINET as Modbus TCP server) instruction
MB_RED_CLIENT (Redundant communication over PROFINET as a Modbus TCP client)
MB_RED_SERVER (Communicating over PROFINET as a Modbus TCP server)
Modbus TCP examples
Example: MB_SERVER Multiple TCP connections
Example: MB_CLIENT 1: Multiple requests with common TCP connection
Example: MB_CLIENT 2: Multiple requests with different TCP connections
Example: MB_CLIENT 3: Output image write request
Example: MB_CLIENT 4: Coordinating multiple requests
Modbus RTU
Overview
Maximum number of supported Modbus slaves
Modbus RTU instructions
Modbus_Comm_Load (Configure SIPLUS I/O or port on the PtP module for Modbus RTU) instruction
Modbus_Master (Communicate using SIPLUS I/O or the PtP port as Modbus RTU master) instruction
Modbus_Slave (Communicate using SIPLUS I/O or the PtP port as Modbus RTU slave) instruction
Modbus RTU examples
Example: Modbus RTU master program
Example: Modbus RTU slave program
Legacy PtP communication (CM/CB 1241 only)
Overview - legacy PtP communication instructions
Legacy condition codes
Legacy point-to-point instructions
PORT_CFG (Configure communication parameters dynamically)
SEND_CFG (Configure serial transmission parameters dynamically)
RCV_CFG (Configure serial receive parameters dynamically)
SEND_PTP (Transmit send buffer data)
RCV_PTP (Enable receive messages)
RCV_RST (Delete receive buffer)
SGN_GET (Query RS-232 signals)
SGN_SET (Set RS-232 signals)
Legacy USS communication (CM/CB 1241 only)
Overview
Legacy USS instructions
USS_PORT (Edit communication using USS network) instruction
USS_DRV (Swap data with drive) instruction
USS_RPM (Readout parameters from the drive) instruction
USS_WPM (Change parameters in the drive) instruction
Legacy USS status codes
Legacy USS general drive setup requirements
Legacy Modbus TCP communication
Overview
Legacy Modbus TCP instructions
MB_CLIENT (Communicate using PROFINET as Modbus TCP client)
MB_SERVER (Communicate using PROFINET as Modbus TCP server)
Legacy Modbus TCP examples
Example: Legacy MB_SERVER Multiple TCP connections
Example: Legacy MB_CLIENT 1: Multiple requests with common TCP connection
Example: Legacy MB_CLIENT 2: Multiple requests with different TCP connections
Example: Legacy MB_CLIENT 3: Output image write request
Example: Legacy MB_CLIENT 4: Coordinating multiple requests
Legacy Modbus RTU communication (CM/CB 1241 only)
Overview
Legacy Modbus RTU instructions
MB_COMM_LOAD (Configure port on the PtP module for Modbus RTU)
MB_MASTER (Communicate using the PtP port as Modbus RTU master)
MB_SLAVE (Communicate using the PtP port as Modbus RTU slave)
Legacy Modbus RTU examples
Example: Legacy Modbus RTU master program
Example: Legacy Modbus RTU slave program
Industrial Remote Communication (IRC)
Telecontrol CPs overview
Further information
Online and diagnostic tools
Status LEDs
Analog module diagnostics
CPU error behavior
Going online and connecting to a CPU
Assigning a name to a PROFINET IO device online
Setting the IP address and time of day
Updating firmware
Setting or deleting the password for protection of confidential PLC configuration data
Resetting to factory settings
Checking a module for defects (saving service data)
Formatting a SIMATIC memory card from STEP 7
CPU operator panel for the online CPU
Monitoring the cycle time and memory usage
Displaying diagnostic events in the CPU
Comparing offline and online CPUs
Performing an online/offline topology comparison
Monitoring and modifying values in the CPU
Overview of the online monitoring and modification tools
Going online to monitor the values in the CPU
Displaying status in the program editor
Capturing a snapshot of the online values of a DB for restoring values
Using a watch table to monitor and modify values in the CPU
Watch tables for monitoring the user program
Using a trigger when monitoring or modifying PLC tags
Enabling outputs in STOP mode
Forcing values in the CPU
Using the force table
Operation of the Force function
Downloading in RUN mode
Overview
Prerequisites for "Download in RUN mode"
Changing your program in RUN mode
Downloading selected blocks
Downloading a single selected block with a compile error in another block
Modifying and downloading existing tags in RUN mode
System reaction if the download process fails
Considerations when downloading in RUN mode
Tracing and recording CPU data on trigger conditions
Determining the type of wire break condition from an SM 1231 module
Backing up and restoring a CPU
Backup and restore options
Backing up an online CPU
Restoring a CPU
Technical specifications
Siemens Online Support Web site
General technical specifications
Altitude specifications
PROFINET interface X1 port pinouts
CPU 1211C
General specifications and features
Performance
Timers, counters, and code blocks supported by CPU 1211C
Communications CPU 1211C
Power supply and sensor power
Digital inputs and outputs
Analog inputs
Analog input specifications
Step response of the built-in analog inputs of the CPU
Sample time for the built-in analog ports of the CPU
Measurement ranges of the analog inputs for voltage (CPUs)
CPU 1211C wiring diagrams
CPU 1212C
General specifications and features
Performance
Timers, counters, and code blocks supported by CPU 1212C
Communications CPU 1212C
Power supply and sensor power
Digital inputs and outputs
Analog inputs
Analog input specifications
Step response of the built-in analog inputs of the CPU
Sample time for the built-in analog ports of the CPU
Measurement ranges of the analog inputs for voltage (CPUs)
CPU 1212C wiring diagrams
CPU 1214C
General specifications and features
Performance
Timers, counters and code blocks supported by CPU 1214C
Communications CPU 1214C
Power supply and power sensor
Digital inputs and outputs
Analog inputs
Analog input specifications
Step response of the built-in analog inputs of the CPU
Sample time for the built-in analog ports of the CPU
Measurement ranges of the analog inputs for voltage (CPUs)
CPU 1214C wiring diagrams
CPU 1215C
General specifications and features
Performance
Timers, counters and code blocks supported by CPU 1215C
Communications CPU 1215C
Power supply and sensor power (CPU 1215C)
Digital inputs and outputs
Analog inputs and outputs
Analog input specifications
Step response of built-in analog inputs of the CPU
Sample time for the built-in analog ports of the CPU
Measurement ranges of the analog inputs for voltage (CPUs)
Analog output specifications
Measurement ranges of the analog outputs for current (CPU 1215C and CPU 1217C)
CPU 1215C wiring diagrams
CPU 1217C
General specifications and features
Performance
Timers, counters and code blocks supported by CPU 1217C
Communications CPU 1217C
Power supply and sensor power (CPU 1217C)
Digital inputs and outputs
Analog inputs and outputs
Analog input specifications
Step response of built-in analog inputs of the CPU
Sample time for the built-in analog ports of the CPU
Measurement ranges of the analog inputs for voltage (CPUs)
Analog output specifications
Measurement ranges of the analog outputs for current (CPU 1215C and CPU 1217C)
CPU 1217C wiring diagrams
CPU 1217C Differential Input (DI) detail and application example
CPU 1217C Differential Output (DQ) detail and application example
Digital signal modules (SMs)
SM 1221 digital input specifications
SM 1221 digital input wiring diagrams
SM 1222 8-point digital output specifications
SM 1222 16-point digital output specifications
SM 1222 digital output wiring diagrams
SM 1223 digital input/output V DC specifications
SM 1223 digital input/output V DC wiring diagrams
SM 1223 digital input/output V AC specifications
SM 1223 digital input/output V AC wiring diagrams
Analog signal modules (SMs)
SM 1231 analog input module specifications
SM 1231 current measurement
SM 1231 wiring diagrams
SM 1232 analog output module specifications
SM 1232 wiring diagrams
SM 1234 analog input/output module specifications
SM 1234 current measurment
SM 1234 wiring diagrams
Step response of the analog inputs
Sample time and update times for the analog inputs
Measurement ranges of the analog inputs for voltage and current (SB and SM)
Measurement ranges of the analog inputs for current (SB and SM)
Measurement ranges of the analog outputs for voltage and current (SB and SM)
Thermocouple and RTD signal modules (SMs)
SM 1231 Thermocouple
SM 1231 thermocouple specifications
SM 1231 thermocouple wiring diagrams
Basic operation for a thermocouple
Selection tables for the SM 1231 thermocouple
Thermocouple analog values
SM 1231 RTD
SM 1231 RTD specifications
SM 1231 RTD wiring diagrams
Selection tables for the SM 1231 RTD
RTD standard temperature ranges
Technology modules
SM 1278 4xIO-Link Master SM
SM 1278 4xIO-Link Master signal module specifications
SM 1278 4xIO-Link Master SM wiring diagrams
SM 1278 4xIO-Link Master overview
Overview
IO-Link and your STEP 7 program
Properties
Functions
Replacing the SM 4xIO-Link signal module
Reset module to factory settings
Connecting
Pin assignment
Block diagram
Parameters/address space
Configuration
Parameters
Address space
Parameter data record
Interrupt, error, and system alarms
Status and error display
Diagnostic alarms
Digital signal boards (SBs)
SB 1221 200 kHz digital input specifications
SB 1221 200 kHz digital input wiring diagrams
SB 1222 200 kHz digital output specifications
SB 1222 200 kHZ digital output wiring diagrams
SB 1223 200 kHz digital input / output specifications
SB 1223 200 kHz digital input / output wiring diagrams
SB 1223 2 X 24 V DC input / 2 X 24 V DC output specifications
SB 1223 2 x 24 V DC input / 2 x 24 V DC output wiring diagrams
Analog signal boards (SBs)
SB 1231 1 analog input specifications
SB 1231 wiring curent transducers
SB 1231 1 analog input wiring diagram
SB 1232 1 analog output specifications
SB 1232 1 analog output wiring diagram
Measurement ranges for analog inputs and outputs
Step response of the analog inputs
Sample time and update times for the analog inputs
Measurement ranges of the analog inputs for voltage and current (SB and SM)
Measurement ranges of the analog inputs for current (SB and SM)
Measurement ranges of the analog outputs for voltage and current (SB and SM)
Thermocouple signal boards (SBs)
SB 1231 1 analog thermocouple input specifications
Basic operation for a thermocouple
Selection table for the SB 1231 thermocouple
SB 1231 thermocouple - filter selection table
SB 1231 1 analog thermocouple wiring diagram
RTD signal boards (SBs)
SB 1231 1 analog RTD input specifications
SB 1231 1 analog RTD input wiring diagram
Selection tables for the SB 1231 RTD
BB 1297 Battery board
BB 1297 battery board
BB 1297 battery board wiring diagram
Communication interfaces
PROFIBUS
CM 1242-5 PROFIBUS DP SLAVE
Pinout of the D-sub socket of the CM 1242-5
CM 1243-5 PROFIBUS DP Master
PROFIBUS master (CM 1243-5) requires 24 VDC power from the CPU
Pinout of the D-sub socket of the CM 1243-5
CP 1243-7 LTE
No maritime approval for CP 1243-7 LTE
CP 1243-7 LTE
CM 1243-2 AS-i master
Technical data for the AS-i master CM 1243-2
Electrical connections of the AS-i master
RS232, RS422, and RS485
CB 1241 RS485 specifications
CB 1241 RS485 wiring
CM 1241 RS232 specifications
CM 1241 RS422/485 specifications
SIMATIC memory cards
Input simulators
S7-1200 Potentiometer module
I/O expansion cable
Companion products
PM 1207 power module
CSM 1277 compact switch module
CM CANopen module
RF120C communications module
SM 1238 Energy meter module
SIWAREX electronic weighing systems
Calculating a power budget
Providing power for the S7-1200 CPU
Calculating a sample power requirement
Calculating your power requirement
Ordering Information
CPU modules
Signal modules (SMs), signal boards (SBs), and battery boards (BBs)
Communication
Fail-safe CPUs and signal modules
Fail-safe signal modules (SM)
Other modules
Memory cards
Spare parts and other hardware
S7-1200 V4 Terminal block spare kits
S7-1200 Functional Safety Terminal block spare kits
Programming software
OPC UA Licenses
Device exchange and spare parts compatibility
Replacing a CPU that has protection of confidential configuration data
Exchanging a V3.0 CPU for a V4.x CPU
S7-1200 V3.0 and earlier terminal block spare kits

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