Frick QUANTUM LX - Software Setup for the Communications Loopback Test

QUANTUM
™
LX EVAPORATOR CONTROL PANEL
COMMUNICATIONS SETUP
090.610-CS (MAY 2016)
Page 121
HARDWARE SETUP FOR TESTING RS-485
To create the communications loopback harness
for RS-422 testing, use the following example:
RS-485 Test Harness
Set the communications jumpers as follows:
1. Set LK11 to position B
2. Set LK16 to position B
3. Set LK17 to position B
4. Plug the RS-485 test harness (as shown
above) into the com ports at TB1 and TB2
as shown here:
LK8
LK10
LK9
LK7
LK2
LK1
LK4
LK3
LK6
LK5
1
2
3
COM-2
RS-232
TB3
D8
D1
D6
D2
D3
PL2
SW1
TB2
1
2
3
4
COM-2
RS-422/RS-485
TB1
1
2
3
4
COM-1
RS-422/RS-485
LK17
A
B
LK11
B
A
LK16
A
B
Verify
the jumpers in
these locations
RS-485 Test Conguration
4-Pin Connector
4
1
+RX/+TX
-RX/-TX
-RX/-TX
+RX/+TX
1
4
4-Pin Connector
SOFTWARE SETUP FOR THE COMMUNICATIONS LOOP-
BACK TEST
On the Communications screen (shown below), ensure
that the settings are as follows:
• Panel ID: 0 - 255 (does not matter)
• Comm Baud Rate: Does not matter, but all
Comms to be tested must be set the same.
• Data Bits: Does not matter, but all Comms to
be tested must be set the same.
• Stop Bits: Does not matter, but all Comms to
be tested must be set the same.
• Parity: Does not matter, but all Comms to be
tested must be set the same.
• Protocol: Set all Comms to be tested to Frick.