6. DeviceNet COMMUNICATION
IMR01Y09-E3
43
Action mode selection
The action mode selection when conducting polling I/O communication is set by the attribute ID 246
of object instance (instance ID) 1 in “Controller object (0x64: 64Hex).”
Corresponding object: Controller object (0x64)
Object class ID: 64
Instance ID:
1
Attribute ID:
246 (Action mode selection)
Write data:
Bit data
b0: Address setting method transfer
0: Continuous setting
1: Free setting
b1: PID/AT transfer by polling I/O communication
0:
Invalid
1:
Valid
[Decimal number: 0 to 3]
Automatic acquisition of controller address setting
The Automatic acquisition of controller address when conducting polling I/O communication is set by
the attribute ID 247 of object instance (instance ID) 1 in “Controller object (0x64: 64Hex).”
Corresponding object: Controller object (0x64)
Object class ID: 64
Instance ID:
1
Attribute ID:
247 (Automatic acquisition of controller address)
Write data:
0: Do not execute the automatic acquisition
1: Execute the automatic acquisition *
* Automatically reverts to “0: Do not execute the automatic acquisition”
after automatic acquisition.
When automatic acquisition of controller address is executed, the
“number of communication controllers” and “controller address”
parameters are updated.
The controller address automatic acquisition set “1: Execute the automatic acquisition,”
performs the automatic acquisition of the controller address by turning on the power again.
Data setting by Explicit message communication
Corresponding object: Controller object (0x64)
Object class ID: 64
Instance ID:
1 to 31
Attribute ID:
1 to 255
[Example] Node address of COM-JH: 1
When set in “100”
in set value (SV) of controller 3
When set in “50” in proportional
band [heat-side] of controller 2
Node address (MAC ID)
1
1
Service code
10H (Set_Attribute_Single)
10H (Set_Attribute_Single)
Object class ID
64
64
Instance ID
3 (Controller number)
2 (Controller number)
Attribute ID
45 (Set value (SV))
46 (Proportional band [heat side])
Write data
100
50
