Hardware reference guide

35013379 11/2011 207
RS-232C Port
Below are pinouts for the RS-232C port
Legend to pinouts for the RS-232C port:
Specifications
The following table shows the technical specifications for the 140CRP81100
Communication Module:
Pin Signal Function
2 RXD Received Data
3 TXD Transmitted Data
5 GND Signal Ground
7 RTS Request to Send
8 CTS Clear to Send
Specifications
Programming software Modsoft version 2.32 or greater
Concept version 2.2 or greater
Bus current required 1.2 A
Power dissipation 6.5 W
Data Interface
RS-232C 9 pin D-shell non-isolated, Shielded cable, 3 m max; 19.2 Kbps
default.
RS-485 Profibus, up to 12 Mbps
Installation Local backplane only
Bus Specifications
Bus nodes max. 32