GE D90 Plus Communications Manual page 207

CHAPTER 3: DNP COMMUNICATION
Object 21 (frozen counters)
Object 22 (counter change events)
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – COMMUNICATIONS GUIDE
– 06 (no range, or all)
– 07, 08 (limited quantity)
– 17, 28 (index)
The following codes are used for responses.
• Function codes for responses, object 20, variations 1, 2, 5, and 6:
– 129 (response)
• Qualifier codes for responses, object 20, variations 1, 2, 5, and 6:
– 00, 01 (start-stop)
– 17, 28 (index)
Object 21, variation 0: Frozen counter
Variation 0 is used to request the default variation. The following codes are used for
requests.
• Function codes for requests, object 21, variation 0:
– 1 (read)
– 22 (assign class)
• Qualifier codes for requests, object 21, variation 0:
– 00, 01 (start-stop)
– 06 (no range, or all)
– 07, 08 (limited quantity)
– 17, 28 (index)
There are no codes used for responses.
Object 21, variation 1: 32-bit frozen counter
Object 21, variation 2: 16-bit frozen counter
Object 21, variation 9: 32-bit frozen counter without flag
Object 21, variation 10: 16-bit frozen counter without flag
The following codes are used for requests.
• Function codes for requests, object 21, variations 1, 2, 9, and 10:
– 1 (read)
– 22 (assign class)
• Qualifier codes for requests, object 21, variations 1, 2, 9, and 10:
– 00, 01 (start-stop)
– 06 (no range, or all)
– 07, 08 (limited quantity)
– 17, 28 (index)
The following codes are used for responses.
• Function codes for responses, object 21, variations 1, 2, 9, and 10:
– 129 (response)
• Qualifier codes for responses, object 21, variations 1, 2, 9, and 10:
– 00, 01 (start-stop)
– 17, 28 (index)
Object 22, variation 0: counter change events
DNP DEVICE PROFILE
203