Lüge Mangel eng s71200 rs232 Oma könnte sein anders
SIMATIC S7-1200, Digital input SM 1221, 16 DI, 24 V DC, Sink/Source 6ES7221-1BH32-0XB0 – airportcomponents.com
SIEMENS SIMATIC S7-1200 Communication Module CM 1241 6ES7 241-1AH32-0XB0 RS232 | eBay
Siemens Simatic S7-1200 CM 1241 6ES7 241-1AH30-0XB0 | eBay
The Siemens S7-1200 | The Automation Blog
New SIMATIC S7-1200 CPUs With Upgraded Firmware Recommended for New Designs, Now Available From RS Components_RS Components Singapore_large image_Download_PR-Newswire
SIEMENS SIMATIC S7-1200 Communication Module CM 1241 6ES7 241-1AH32-0XB0 RS232 | eBay
Siemens S7-1200 RS232 serial communication using the CM1241 module with the SEND_PTP Function Block - YouTube