Teleservice (Ts); Rs485, Rs232, And Rs422 Communication; Cb 1241 Rs485 Specifications; A.8.3 Teleservice (Ts) - Siemens SIMATIC S7-1200 Manual

A.8.3

Teleservice (TS)

The following manuals contain the technical specification for the TS Adapter IE Basic and
the TS Adapter modular:
● Industrial Software Engineering Tools
● Industrial Software Engineering Tools
A.8.4

RS485, RS232, and RS422 communication

A.8.4.1

CB 1241 RS485 Specifications

Note
To use this CB, your CPU firmware must be V2.0 or higher.
Table A- 59 General specifications
Technical data
Order number
Dimensions
Weight
Table A- 60 Transmitter and receiver
Technical data
Type
Common mode voltage range
Transmitter differential output voltage
Termination and bias
Optional termination
Receiver input impedance
Receiver threshold/sensitivity
Easy Book
Manual, 11/2011, A5E02486774-04
Modular TS Adapter
TS Adapter IE Basic
CB 1241 RS485
6ES7 241-1CH30-1XB0
38 x 62 x 21
40 grams
CB 1241 RS485
RS485 (2-wire half-duplex)
-7 V to +12 V, 1 second, 3 VRMS continuous
2 V min. at R = 100 Ω
L
1.5 V min. at R = 54 Ω
L
10K to +5 V on B, RS485 Pin 3
10K to GND on A, RS485 Pin 4
Short Pin TB to Pin T/RB, effective termination impedance is 127 Ω,
connects to RS485 Pin 3
Short Pin TA to Pin T/RA, effective termination impedance is 127 Ω,
connects to RS485 Pin 4
5.4K Ω min. including termination
+/- 0.2 V min., 60 mV typical hysteresis
Technical specifications
A.8 Communication interfaces
277