HIGH SPEED DIGITAL WEIGHT INDICATORS
64
CONFIGURE COM PORTS FOR RS422 MODE - PARAMETER 40
Description: Some scoreboards and other equipment now support RS422,
which allows for cable runs of up to 1000 feet. If the equipment
connecting to the M2000 Indicator supports RS422, the M2000
COM ports can be configured to RS422 mode.
The default hardware settings for both COM ports are RS232. The
output setting is changed using Parameter 40 and the values
below:
PARAMETER VALUE COM1 COM2
0 (default) RS232 RS232
1 RS422 RS232
2 NOT CURRENTLY SUPPORTED
3 RS422 RS422
FOR RS422 COMMUNICATIONS:
The wire connections to the COM ports on the back of the indicator are different
for RS422 than for RS232. RS422 requires 2 lines for transmit (TX+ and TX-)
and 2 lines for receive (RX+ and RX-).
CTS
Terminal becomes
RX -
RX
Terminal becomes
RX +
TX
Terminal becomes
TX +
RTS
Terminal becomes
TX -
To Next Page
Loading...
