LED Allen-Bradley PLC Slc500 Slc 504 CPU 7-Slot Rack

How to communicate Python with Siemens PLC using Python-snap7 plc rack and slot This rack lies just beside the master rack It provides slots for plugging IO modules Data are exchanged with the CPU through a local rack communication slot attendant uniform Hello Experts, I would like to get some explaination on the Rack and Slot selection when selecting node address

gambar slot online SIMATIC S7-400, rack aluminum UR2, central and distributed with 9 slots, 2 redundant PS can be plugged in 価格を表示 スペアパーツ