Siemens S7-1200 - CM 1241 RS232 Specifications

Technical specifications
A.14 Communication interfaces
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
975
Pin
9-Pin connector
X20
9
RS485 / Not Used
--
Shell
7 - M
See also
Biasing and terminating an RS485 network connector (Page 670)
A.14.4.2
CM 1241 RS232 specifications
Table A- 249 General specifications
Technical data
CM 1241 RS232
Order number
6ES7 241-1AH32-0XB0
Dimensions (mm)
30 x 100 x 75
Weight
150 grams
Table A- 250 Transmitter and receiver
Technical data
CM 1241 RS232
Type
RS232 (full-duplex)
Transmitter output voltage
+/- 5 V min. at R
L
= 3K Ω
Transmit output voltage
+/- 15 VDC max.
Receiver input impedance
3 K Ω min.
Receiver threshold/sensitivity 0.8 V min. low, 2.4 max. high
0.5 V typical hysteresis
Receiver input voltage
+/- 30 VDC max.
Isolation
RS 232 signal to chassis ground
RS 232 signal to CPU logic common
500 VAC, 1 minute
Cable length, shielded
10 m max.
Baud rate 300 baud, 600 baud, 1.2 kbits, 2.4 kbits, 4.8 kbits, 9.6 kbits (default),
19.2 kbits, 38.4 kbits, 57.6 kbits, 76.8 kbits, 115.2 kbits,
Parity No parity (default), even, odd, Mark (parity bit always set to 1),
Space (parity bit always set to 0)
Number of stop bits
1 (default), 2
Flow control
Hardware, software
Wait time
0 to 65535 ms