Technical specifications
A.16 Communication interfaces
S7-1200 Programmable controller
1542 System Manual, V4.2, 09/2016, A5E02486680-AK
Table A- 247 Power supply
Current consumption (SM Bus), max. 50 mA
Current consumption (24 V DC) max.
CB 1241 RS485 (6ES7241-1CH30-1XB0)
Connect "TA" and TB" as shown to terminate the network. (Terminate only the end devices on the RS485 network.)
Use shielded twisted pair cable and connect the cable shield to ground.
You terminate only the two ends of the RS485 network. The devices in between the two end
devices are not terminated or biased. See the topic "Biasing and terminating an RS485
network connector" (Page 1088)
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