Mitsubishi Electric MELSEC-A User Manual page 14

4. WF-DPGNOSTIC TESTING
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Test method
T h procedure for
the
A372T25B (remote I/O station) inter-StatiOn test
is given below.
Connect the AJ72T26B
to
the station it is to be
tested with with a twisted
pair cable as shown In
Fia. 4.1.
J
......
Either turn off the power supply to all
stations other than those being tested or
disconnect the twisted cables from them.
1
Connect terminal resis-
tors between the
SDNRDA and SDWRDB
terminals of the
AJ72T25B and the station
it
is to be tested with.
AJ72T25B
(master statiordlocal station)
Set the modules at which
the test is to be executed
switch to STOP.
to the STOP status.
Set the CPU module's RUN/STOP key
Set the mode selection
ules at which the test is
to be executed to '5'.
station designation)
......
Inter-station test selection (master
I
Set the mode selection
I
,
..*
I
......
Execute the test about 7 seconds after
resetting.
The result of the inter-
station test is indicated
by LEDs.
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See next page
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End