une description:SIMATIC S7-200, CPU 226 Compact unit, AC power supply 24 DI DC/16 DO relay 16/24 KB progr./10 KB data, 2 PPI/user-programmable interface
une description:SIMATIC DP, Connection ET 200M IM 153-4 PN IO for max. 12 S7-300 modules, extended functions: Isochronous real-time Communication Class 1 and 2, module replacement without PG operation without MMC, maintenance Support of new IO modules
une description:PROFIBUS OLM/G12 V4.0 Optical Link Module with 1 RS485 and 2 glass FOC interfaces (4 BFOC sockets) for standard Distances up to 2850 m, with signaling contact and measuring output