6QBI User’s Guide
UG-1091
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Test Panel (Maintenance)
Copyright © 2021 QEI
15.9
Communication Checks
Several test panel commands are associated with 6QBI communications testing. The
test panel can be used to identify port configuration, and to monitor communications
between the 6QBI and RTU.
15.9.1 PRX Command
The Test Panel can be used to track communications on any serial port. Since the
output on the display may be difficult to read due to the communication speed, it may
be necessary to save the data in a file (recording file), which can be examined later.
Note that the value within [xxxx] is relative time stamp in milliseconds between
messages. The tx[] time value will typically be same as rx[] value because the 6QBI
processes message quickly. Also note that the max time between messages is
9999ms (9.999 seconds) and will roll over to zero (0).
To help debug communications several PRX options are available. Order of options
is not critical, use minimal entry to unique format, i.e A for ASCII, T for TX etc.
PRX <port> <option> <option> <option>
Options (only first letter required):
N(ONE
– turns off all monitoring, options
A(SCII
– modifier, decodes data in ASCII/TEXT format
H(EX
– modifier, decode data in HEX format - default
T(X
– display communications transmitted by 6QBI
R(X
– display communications received by 6QBI
Mxx
– display only message with OpCode xx
Lxx
– display only messages of xx length or greater
DEBUG
– turns on debug mode. Actions/Error messages displayed on TP console
as/when they occur.
“
>
” indicates messages received by the 6QBI from the RTU.
“
<
” indicates messages sent from the 6QBI to the RTU.
Display formats:
HEX: >[xxxx] aabbccddeeffgghhiijjkkll
where: xxxx is relative time stamp in ms, aabbccddeeff is HEX decode of each byte
ASCII: >[xxxx] “op_code” [station][length] aabbccddeeffgghhii
