Siemens FCM7221-H3, S54400-F78-A1 Operating add-on (2xEVAC) The operating add-on is composed of an operation of 10 zones and an extension of another 10 zones. Th
Siemens FCI2008-A1, S54400-A6-A1 I/O card (programmable) The I/O card is an additional card with programmable inputs and outputs for expansion of the integrated inputs and outputs. The car