Rockwell Automation RECOMM-CNET ControlNet Communications Module - Manual (Page 146)

C-30 ControlNet Communications Module
C.10 DPI Time Object
Class Code
Instances
The number of instances depends on the number of timers in the
device. Instance 1 is always reserved for a real time clock although
a device may not support it. The total number of timers can be read
in Instance 0, Attribute 2.
Class Attributes
Hexadecimal Decimal
0x9B 155
Number Description
0 Class Attributes
1 Real Time Clock (Predefined)
(Not always supported)
2 Timer 1
3 Timer 2
… …
Attribute
ID
Access
Rule Name
Data
Type Description
1 Get Class Revision WORD Revision of object
2 Get Number of
Instances WORD Number of timers in the object,
excluding the real time clock that
is predefined
3 Get First Device
Specific Timer WORD Instance of the first timer that is
not predefined
4 Set Time Command
Write BYTE 0 = No operation
1 = Clear all timers (Does not
clear the real time clock or
read only timers)