B-63983EN/02 7.PMC DIAGNOSIS AND MAINTENANCE SCREENS ([PMC MAINTE])
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WARNING
When PMC parameters are read, a modified
parameter can exercise an unexpected influence on
ladder operation. Before reading PMC parameters,
make sure that the parameters to be read do not
affect ladder operation.
7.4.25 Comparing PMC Parameters with Files of Other Devices
(via the RS-232C Port)
A PMC parameter comparison can be made between the PMC and
another type of device connected via RS-232C. To use this function,
perform the operation described below on the I/O screen. To set the
communication parameters, display the port setting screen by pressing
the [PORT SETING] soft key. For the port setting screen, see
Subsection 7.4.2.
NOTE
Compare operation can be performed only when
the operation condition allows PMC parameter
output. For details, see Section 6.2.
(1) On the I/O screen, make the following settings with the query
selection cursor and option selection cursor:
Query Setting
DEVICE OTHERS
FUNCTION COMPARE
(2) Press the [EXEC] soft key to execute a PMC parameter
comparison.
When PMC parameters for the conventional model are to be read
with the multi-PMC system, select a read source PMC with soft
key operation. For PMC selection, see Subsection 7.4.4. Press
the [CANCEL] soft key to stop the operation.
NOTE
When the format of a specified file cannot be
recognized, the compare operation is terminated
abnormally with the following message:
"UNKNOWN FILE FORMAT"