Hardware Test - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.4

Hardware Test

A master/local module is individually tested to check whether it normally operates.
Procedure
1.
Connect the terminating resistor provided with the module between the DA and DB terminals on the terminal block of the
master/local module.
2.
Check the following before powering on.
• Module mounting status
• Input power supply voltage
• The CPU module is set to STOP.
3.
Set the following item to "Hardware Test".
[Navigation window]  [Parameter]  [Module Information]  [RJ61BT11]  [Required settings]  [Mode]
4.
Write the module parameters to the CPU module.
5.
Power off and on or reset the CPU module to start the hardware test.
Do not perform a hardware test while connected to another station. Doing so may result in a failure of the test.
Checking the status and result of hardware test
The test status and result can be checked with LED indication of the module.
Test status
Test in progress
Normal completion
Abnormal end
If the test fails, check if the terminating resistor provided with the master/local module is connected between the DA and DB
terminals. If the terminating resistor is connected, the possible cause is a hardware failure. Replace the master/local module.
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4.4 Hardware Test
LED indication
The dot matrix LED indicates "H.T.".
The dot matrix LED indicates "OK".
The dot matrix LED indicates "ERR".