GE D90 Plus Communications Manual page 206

DNP DEVICE PROFILE
Object 20 (binary counters)
202
– 3 (select)
– 4 (operate)
– 5 (direct operate)
– 6 (direct operate, no acknowledge)
• Qualifier codes for requests, object 12, variation 1:
– 00, 01 (start-stop)
– 07, 08 (limited quantity)
– 17, 28 (index)
The following codes are used for responses.
• Function codes for responses, object 12, variation 1:
– 129 (response)
• Qualifier codes for responses, object 12, variation 1:
– echo of request
Object 20, variation 0: Binary counter
Variation 0 is used to request the default variation. The following codes are used for
requests.
• Function codes for requests, object 20, variation 0:
– 1 (read)
– 7 (freeze)
– 8 (freeze, no acknowledge)
– 9 (freeze clear)
– 10 (freeze clear, no acknowledge)
– 22 (assign class)
• Qualifier codes for requests, object 20, 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 20, variation 1: 32-bit binary counter
Object 20, variation 2: 16-bit binary counter
Object 20, variation 5: 32-bit binary counter without flag
Object 20, variation 6: 16-bit binary counter without flag
The following codes are used for requests.
• Function codes for requests, object 20, variations 1, 2, 5, and 6:
– 1 (read)
– 7 (freeze)
– 8 (freeze, no acknowledge)
– 9 (freeze clear)
– 10 (freeze clear, no acknowledge)
– 22 (assign class)
• Qualifier codes for requests, object 20, variations 1, 2, 5, and 6:
– 00, 01 (start-stop)
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 3: DNP COMMUNICATION