3 - 15 3 - 15
MELSEC-Q
3 SPECIFICATIONS
(b) When starting I/O communication automatically at power-up
Set "Start" in Automatic Communication Start Setting (address: 0631
H
).
• 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
OFF
OFF
ON
I/O Communicating
(X01)
Module Ready (X0F)
ON
Parameter
check
When parameter check failed
OFF
OFF
OFF
ON
ON
Error Set Signal for
Slave Function (X08)
I/O Communicating
(X01)
Module Ready (X0F)
Parameter
check
(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).
Summary of Contents for QJ71DN91
Page 1: ...DeviceNet Master Slave Module User s Manual QJ71DN91 GX Configurator DN SW1D5C QDNU E ...
Page 2: ......
Page 233: ......