Power Line Carrier ____________________________________________________________________
RF-MCGARDPRO
Hubbell Power Systems, Inc.
–
RFL™
Products
July 1, 2022
©2022 Hubbell Incorporated
5-28
Checkback Test Codes:
4.
Checkback test 1 through 8 Command and Response:
Command:
This is the
code sent from the Master station to the Remote station. Valid
codes are 1-16 or Off.
Response:
The code sent from the Remote station to the Master station in response to a
command. Valid codes are 1-16 or Off.
5.
Remote Checkback Initiate:
In Master mode the checkback sequence is initiated in
response to this code.
In Remote mode this code is sent to the Master to request the checkback sequence.
Selections are 1-16, or Off. The recommended setting is 16.
Note:
When switching between Master and Remote modes it may be necessary to restart the
front PLC module to clear pre-existing alarms.
6.
Command TX Level:
Can be set for high or low for checkback test 1 through 8. High
is the “TX Block Level” and Low is the “TX Reserve Level” see
5.4.2.2.
5.4.2.5.1 Recommended Checkback Settings (Two Terminal)
RFL recommends the following settings for most standard PLC Checkback Two-Terminal line
testing operations. Following the table below are the recommended settings for Three-Terminal
operation.
Master
Remote
Station A
Station B
Table 5-10 Recommended Checkback Settings, 2-Terminal Line Testing
User Interface Web Page (Path)
Setting Name
Station A
Station B
Configuration > PLC> (Checkback)
Enable/Mode
Master
Remote
Configuration > PLC> (Checkback)
Max Delay for Remote Response
30 s
30 s
Configuration > PLC> (Checkback)
Start Time
6:00
6:00
Configuration > PLC> (Checkback)
Interval
24 h
24 h
Configuration > PLC> (Checkback)
Test 1 Command
1
1
Configuration > PLC> (Checkback)
Test 1 Response
1
1
Configuration > PLC> (Checkback)
Test 1 TX Level
High
High
Configuration > PLC> (Checkback)
Test 2 Command
2
2
Configuration > PLC> (Checkback)
Test 2 Response
2
2
Configuration > PLC> (Checkback)
Test 2 TX Level
Low
Low
Configuration > PLC> (Checkback)
Test 3 Command
Off
Off
Configuration > PLC> (Checkback)
Test 3 Response
Off
Off
Configuration > PLC> (Checkback)
Test 3 TX Level
Low
Low
Configuration > PLC> (Checkback)
Test 4 Command
Off
Off
Configuration > PLC> (Checkback)
Test 4 Response
Off
Off