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Section 3
Vendor-specific implementation
3.3.7.5
3.3.7.6
28
Table 17:
16 bit SSR4 register
Bit
Meaning
0
Data in category 1 changed
1
Data in category 2 changed
2
Data in category 3 changed
3
Data in category 4 changed
4
Data in category 5 changed
5
Data in category 6 changed
6
Data in category 7 changed
7
Data in category 8 changed
8
Data in category 9 changed
9
Data in category 10 changed
10
Data in category 11 changed
11
Data in category 12 changed
12
Data in category 13 changed
13
Data in category 14 changed
14
Data in category 15 changed
15
Data in category 16 changed
SSR5
SSR5 is a device alive counter. SSR5 simply counts upwards from 0 to 65535 and then
starts over. The meaning of this register is to assure that the device is actually operating.
SSR6
SSR6 is a last command register. This client dependent SSR6 register shows the result of
a specific client's last write attempt. This is especially useful if the exception code 03
appears or if the command initiates a secured control operation. The client will only see its
own results, not the results of other clients. A client with no write authority will receive a
0x0000 value response when reading this register.
Table 18:
16 bit SSR6 register
ClientCmdSEQNo
Cmd State
15
14
13
12
11
ClientCmdSEQNo
Counts the client's control operations from 0000...1111, that is 0...15, and then starts over.
CmdState
00 = No write command has ever been issued by this client
01 = Command in progress
11 = Response Ready
Data category
1 = Physical inputs
1 = Protection function pickup/trip
1 = LED Alarm
1 = New disturbance record available
1 = New demand values
1 = New peak demand values
0
0
0
0
0
0
0
0
0
0
Resp Type
CMDResultCode
10
9
8
7
6
1MAC052634-MB D
5
4
3
2
1
615/620 series ANSI
Communication Protocol Manual
0
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