Size of the user data with the CP 1616
The size of the user data (process data) is calculated from the maximum frame size (gross volume of data) minus the values for the modules plugged into this IO device. This results in the net volume of data.
Example of the calculation of the user data (bytes) of the CP 1616 as an IO device with homogeneous modules (for example only DI modules)
|
Bytes |
Explanation |
|---|---|
|
1434 |
Gross size of the frame |
|
-16 |
for the maximum number of pluggable modules |
|
= 1418 |
Net size of the user data |
Example of the calculation of the user data (bytes) of the CP 1616 as an IO device with heterogeneous modules (for example DI/DO)
|
Bytes |
Explanation |
|---|---|
|
1434 |
Gross size of the frame |
|
-32 |
for twice the maximum number of pluggable modules |
|
= 1370 |
Net size of the user data |
Size of the user data with the CP 343-1 (Lean/Standard/Advanced)
The size of the user data (process data) is calculated from the maximum frame size (gross volume of data) minus the values for the CP and the interface itself, for the number of ports and the modules plugged into this IO device. This results in the net volume of data.
Example of calculating the user data (bytes) of the CP 343-1 as an IO device
|
Bytes |
Explanation |
|---|---|
|
548 |
Gross size of the frame |
|
-1 |
for the CP itself |
|
-1 |
for the Interface |
|
-2 |
for 2 ports |
|
-32 |
for the maximum number of pluggable modules |
|
= 512 |
Net size of the user data * |