Communication; Termination Board Test; Table 5-3 Rs-232 Field Wiring On The G4 Ex Termination Board - ABB XSeries G4 6200 User Manual

5.4.7 RS-232 communication
The following test procedure is directed from Figure 5–7 and will assist the user in
what may be the possible cause for an indicated error message.
With the exception of the field wiring directly on the G4 EX termination board, all
other wiring is located inside the 6270 OEU enclosure; therefore, two separate
procedures are required for testing.
5.4.8 RS-232 termination board test
Before performing the voltage test on the termination board located inside the rear
end cap, verify that the wiring is correct (see Table 5–3).
Table 5–3 RS-232 field wiring on the G4 EX termination board
Description
J19 – COMM 1
Pin 1 V-Battery
Pin 2 Ground
Pin 3 Switched VBATT
Pin 4 Operate Comm1
Mirror Request to
Pin 5
Send
Pin 6 Request to Send
Pin 7 Transmit Data
Pin 8 Receive Data
Pin 9 Clear to Send
5.4.8.1
Page 5–18
ABRV
VBATT
GND
COMM1SW
Operate Comm1
RRTS COMM1
RTS
TXD
RXD
CTS
When troubleshooting RS-232 mode, verify the settings of
COMM 1 SW 1 and COMM 2 SW2 on the termination board
are configured properly (see Figure 5–4).
Step-by-step instructions
Voltage on the following steps may be hard to see using a
Digital Multi-meter (DMM). If available, an oscilloscope will
provide a more accurate reading. To verify, the WinCCU
software must be continuously polling the meter
Generally speaking, these tests
termination board will only verify incorrect or damaged
wiring. If all previous testing passed and all wiring, jumpers
and terminations have been verified correct, the board will
need to be replaced. Contact Totalflow Customer Service.
See the Getting Help section for instructions.
Description ABRV
J20 – COMM 2
V Battery VBATT
Ground GND
Switched VBATT COMM2 SW
Operate Comm2 Operate Comm2
Mirror Request to
RRTS COMM2
Send
Request to Send RTS
Transmit Data TXD
Receive Data RXD
Clear to Send CTS
performed on the
2104349 rev. AD