Using FM 450-1 This section contains information on the following topics:FM 450-1 front connector terminal assignment (S7-300, S7-400)Configuring FM 450-1 (S7-300, S7-400)Using FM 450-1 from the user program (S7-300, S7-400)FM 450-1: Online & Diagnostics (S7-300, S7-400)