Rockwell Automation 20-COMM-R Remote I/O Adapter - Manual (Page 105)

CIP Objects C-19
20-COMM-R Remote I/O Adapter User Manual
Publication 20COMM-UM004D-EN-P
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
Instance Attributes
Hexadecimal Decimal
0x9B
155
Instances (Hex.) (Dec.) Device Example Description
0x0000…0x3FFF 0…16383 Host 0 Class Attributes (Drive)
0x4000…0x43FF 16384…17407 Adapter 1 Real Time Clock (Predefined)
(not always supported)
0x4400…0x47FF 17408…18431 DPI Port 1 2 Timer 1
0x4800…0x4BFF 18432…19455 DPI Port 2 3 Timer 2
0x4C00…0x4FFF 19456…20479 DPI Port 3 … …
0x5000…0x53FF 20480…21503 DPI Port 4
0x5400…0x57FF 21504…22527 DPI Port 5
0x5800…0x5BFF 22528…23551 DPI Port 6
Attribute ID Access Rule Name Data Type Description
1 Read Only Class Revision WORD Revision of object
2 Read Only Number of Instances WORD Number of timers in the object, excluding the
real-time clock that is predefined.
3 Read Only First Device Specific
Timer
WORD Instance of the first timer that is not predefined.
4 Write Time Command Write BYTE 0 = No Operation
1 = Clear all timers (Does not clear the real-time
clock or read only timers)
Attribute ID Access Rule Name Data Type Description
0 Read Only Read Full STRUCT of:
STRING[16]
LWORD -or-
STRUCT
BOOL[16]
Name of the timer
Elapsed time in milliseconds unless timer is a
real-time clock (see attribute 2)
See Attribute 3
1 Read Only Timer Text STRING[16] Name of the timer
2 Read/Write Timer Value LWORD
-or-
STRUCT of:
WORD
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
Elapsed time in milliseconds unless the timer is a
real-time clock.
Real-Time Clock Data:
Milliseconds (0…999)
Seconds (0…59)
Minutes (0…59)
Hours (0…23)
Days (1…31)
Months (1 = January, 12 = December)
Years (since 1972)
3 Read Only Timer Descriptor BOOL[16] BOOL[0]: (0 = invalid data, 1 = valid data)
BOOL[1]: (0 = elapsed time, 1 = real time)
BOOL[2…15]: Not used