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8.3 Starting Test and Maintenance
Observe the following and perform Test and Maintenance by using steps (1) to (6):
● Do not perform Test and Maintenance for other modules at the same time.
● Before starting Test and Maintenance, record the settings of the LADDER RUN/STOP switch of the
CPU module, and the MODU. No. setting switch and BIT RATE setting switch of the J.NET module.
This ensures that the original settings can be restored after Test and Maintenance is completed.
● Back up data.
● Turn off the power switch of the power supply module.
(1) If necessary, perform wiring as shown in 8.2 Wiring method.
(2) Select the test item and module type by using the MODU No. and BIT RATE setting switches of the J.NET
module. Table 8-2 shows the correlation between test items, module types and switch settings of the CPU
module required to start Test and Maintenance.
Table 8-2 Test item and module type selected by the setting switches
Switch settings of the J.NET
module
MODU No.
BIT RATE
8
9
8
9
8
9
8
9
8
9
8
9
8
9
8
9
Test item
8
T/M1
9
T/M2
A
T/M3
B
Do not use this switch
setting.
C
D
T/M4
E
Do not use this switch
setting.
F
Module type
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
Module 0
Module 1
8-3
8. Test and Maintenance Diagnosis
Switch settings of the CPU
module
CPU
LADDER
RUN/STOP
RUN/STOP
RUN
RUN
--
--
--
--
RUN
RUN
--
--
--
--
--
--
--
--
--
--
--
--
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