Mitsubishi Electric QJ71DN91 User Manual page 40

3 SPECIFICATIONS
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(b) When starting I/O communication automatically at power-up
Set "Start" in Automatic Communication Start Setting (address: 0631
• When power is turned ON, Module Ready (X0F) is set to ON and
parameters are checked.
• If the parameter check is completed successfully, I/O communication with
the master node is started and I/O Communicating (X01) is set to ON.
Note that, until receiving an I/O communication request from the master
node, the module waits for connection establishment.
• If the parameter check has failed, the ERR. LED lights up and Error Set
Signal for Slave Function (X08) is set to ON. At this time, I/O
Communicating (X01) is not set to ON.
For details of Error Set Signal for Slave Function (X08), refer to Section
(4).
• Setting I/O Communication Request (Y11) to ON and then OFF stops I/O
communication with the master node, causing I/O Communicating (X01)
to turn OFF.
When parameter check completed successfully
Module Ready (X0F)
I/O Communicating (X01)
When parameter check failed
Module Ready (X0F)
I/O Communicating (X01)
Error Set Signal
for Slave Function (X08)
(3) Saving Parameters to Flash ROM (X06), Parameters Saved to
Flash ROM (X07), Request for Saving Parameters to Flash ROM
(Y17)
Refer to Section 3.3.2 (6).
Parameter
check
OFF
Parameter
check
MELSEC-Q
).
H
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