6. DeviceNet COMMUNICATION
IMR01Y09-E3
41
Communication parameter setting by Explicit message communication
“Communication data item setting”, “Setting the number of communication controllers”, “Controller
address setting”, “Action mode selection” and “Automatic acquisition of controller address” necessary
when conducting polling I/O communication are described by referring to the same settings made via
Explicit message communication.
Communication item setting
Each communication data item when conducting polling I/O communication is set by object instance
(instance ID) 1 in “Controller communication item setting object (0xC7: C7Hex).”
Controller communication item setting object (0xC7: C7Hex): Object instance 1
Attribute ID
Contents
Data range
Factory
set value
1
Measured data item (IN) 1
1
2
Measured data item (IN) 2
3
Measured data item (IN) 3
4
Measured data item (IN) 4
5
Measured data item (IN) 5
32
Measured data item (IN) 32
Select the necessary measured data
item from among controller objects
(0x64: 64Hex) and set the relevant
attribute ID
.
Attribute ID: 1 to 255
0
33
Setting data item (OUT) 1
45
34
Setting data item (OUT) 2
35
Setting data item (OUT) 3
36
Setting data item (OUT) 4
37
Setting data item (OUT) 5
64
Setting data item (OUT) 32
Select the necessary setting data item
from among controller objects
(0x64: 64Hex) and set the relevant
attribute ID
.
Attribute ID: 1 to 255
0
Set measured data items in order starting from “Measured data item (IN) 1.” If any of the
following values is set, all items from that item to “Measured data item (IN) 32” are the
same as those when set at “0.”
•
If at “0”
•
If set to attribute ID to which no communication data items are assigned
•
If at 231 to 236 or 238 to 243 as attribute ID
Set the setting data items in order starting from “Setting data item (OUT) 1.” If any of the
following values is set, all items from that item to “Setting data item (OUT) 32” are the same
as those when set at “0.”
•
If at “0”
•
If set to attribute ID to which readable communication data items are assigned
•
If set to attribute ID to which no communication data items are assigned
•
If at 36, 231 to 236, or 238 to 243 as attribute ID
•
If at 33 as attribute ID (when “b1: PID/AT transfer by polling I/O communication” of
attribute ID “246” (Action mode selection) is “0: Invalid”)
For contents of attribute ID of controller object (0x64: 64Hex), see
7. COMMUNICATION
DATA LIST (P.44)
.
