14 Test Operation, Adjustment, Maintenance and Troubleshooting
14.1 Preparation for Test Operation
167
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
11
High-Speed
Counters
12
Output Wiring
13
Wiring for
Various Uses
14
Test Run,
Maintenance,
Troubleshooting
15
Input/Output
Powered
Extension Units
16
Input/Output
Extension
Blocks
17
Extension
Power Supply
Unit
18
Other Extension
Units and
Options
19
Display Module
20
Terminal Block
14.1.4 Writing of program and program check [power ON and PLC stopped]
1 Turn on the PLC power.
Make sure that the RUN/STOP switch of the PLC is set to STOP, and turn the power on.
2 Check the program.
Check for circuit errors and grammatical errors with the program check function of the program-
ming tool.
3 Transfer the sequence program.
Write the program to the PLC with the programming tool.
When the memory cassette is used
Make sure to set the PROTECT switch of the memory cassette to
OFF (shown right).
→ For details on handling of the memory cassette, refer to Chapter 21.
4 Verify the sequence program.
Verify that the program has been correctly written to the PLC.
5 Execute PLC diagnosis.
Check for errors in the PLC main body with the PLC diagnostic function of the programming tool.
→ For details on the PLC diagnosis with the display module or GX Developer, refer to Section 14.6.
PROTECT switch