Mitsubishi FX2N-16CCL-M, User Manual, Page: 118 / 194

FX2N-16CCL-M CC-Link System Master Block Data Link Procedure 8
8-8
8.3 Master Block Status Check (Hardware Test)
Check in the master block single module whether it operates normally.
Make sure to execute this hardware test before constructing the system.
Execute the test using the following procedure.
Connect a terminal resistor offered as an accessory
between the terminals DA and DB in the master block.
Set the mode setting switch in the master block to 6.
Turn off the power of the PLC and the master block,
then turn it on again.
OFF
↓
ON
Approximately 4 seconds later, the test starts.
Start
The test result is indicated by the LED indicators in the master module.
The RUN LED turns OFF.
End
[When normal]
The LED indicators turn ON in the order "SW
→
M/S
→
PRM
→
TIME".
SW
M/S
PRM
TIME
●
❍
❍
❍
❍
●
❍
❍
❍
❍
●
❍
❍
❍
❍
●
[When abnormal]
The table below shows the contents of each check item.
If an error occurs, replace the module.
SW is ON.
M/S is ON.
PRM is ON.
LED status
Module error
ROM error
RAM error
Description
Self-loop back check
ROM check
RAM check
Check item
Repeats.