SIMATIC S7-300 CPU 319-3 PN/DP
SIMATIC S7-300 CPU319F-3 PN/DP
SIMATIC S7-300, Digital input SM 321
SIMATIC S7, digital input SM 321
SIMATIC S7-300, Digital output SM 322
SIMATIC S7, digital output SM 322
SIMATIC S7-300, Digital module SM 323
SIMATIC S7, Digital input SM 326
SIMATIC S7, digital output SM 326
SIMATIC S7-300, Analog input SM 331
