Technical specifications
A.9 Communication interfaces
Easy Book
338 Manual, 03/2014, A5E02486774-AF
Table A- 71 RS485 or RS422 connector (female)
Logic or communication ground
+5 V with 100 ohm series resistor: Output
2 TxD+
1
Connected for RS422
Not used for RS485: Output
7 Not connected
Signal B (RxD/TxD+): Input/Output
Signal A (RxD/TxD-): Input/Output
4 RTS
2
Request to send (TTL level) Output 9 TXD-
1
Connected for RS422
Not used for RS485: Output
Logic or communication ground
Pins 2 and 9 are only used as transmit signals for RS422.
The RTS is a TTL level signal and can be used to control another half duplex device based on this signal. It is active
when you transmit and is inactive all other times.
CM 1241 RS232 specifications
Table A- 72 General specifications
Table A- 73 Transmitter and receiver
Transmitter output voltage
L
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
Receiver input voltage +/- 30 VDC max.
Isolation
RS 232 signal to chassis ground
RS 232 signal to CPU logic common
500 VAC, 1 minute
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)
To Next Page
Loading...
Need help?
General
