11-10
8 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE
ADMINISTRATOR LOGIN AND COMMANDS VIA MODBUS FOR 8 SERIES RELAYS
CHAPTER 11: MODBUS PROTOCOL
Administrator Login and Commands via Modbus for
8 Series Relays
Logging in as Administrator
Logging in as Administrator is demonstrated in the example below. The process requires
writing 44 bytes which consist of the Role ID and Password. Password characters are 22
bytes and role characters are also 22 bytes. The logging in must be done using a single
Modbus command using Function 10H (Store Multiple Setpoints).
The following table shows data to be written to the relay to login as Administrator. The
relay password in this example is 0.
Table 11-16: Data Written to Relay to Login as Administrator
Table 11-17: Login as Administrator Function Format
Table 11-18: Login as Administrator Function Format continued
Commands using Modbus Function 10H (Store Multiple Setpoints)
Description
Memory Map Address
Value to be written
DEC
HEX
DEC
HEX
Role Characters 1 and 2
62242
F322
16740
4164
Role Characters 3 and 4
62243
F323
28009
6D69
Role Characters 5 and 6
62244
F324
28265
6E69
Role Characters 7 and 8
62245
F325
29556
7374
Role Characters 9 and 10
62246
F326
29281
7261
Role Characters 11 and 12
62247
F327
29807
746F
Role Characters 13 and 14
62248
F328
29184
7200
Role Characters 15 and 16
62249
F329
0
0000
Role Characters 17 and 18
62250
F32A
0
0000
Role Characters 19 and 20
62251
F32B
0
0000
Role Characters 21 and 22
62252
F32C
0
0000
Password Characters 1 and 2
62253
F32D
12288
3000
Password Characters 3 and 4
62254
F32E
0
0000
Password Characters 5 and 6
62255
F32F
0
0000
Password Characters 7 and 8
62256
F330
0
0000
Password Characters 9 and 10
62257
F331
0
0000
Password Characters 11 and 12
62258
F332
0
0000
Password Characters 13 and 14
62259
F333
0
0000
Password Characters 15 and 16
62260
F334
0
0000
Password Characters 17 and 18
62261
F335
0
0000
Password Characters 19 and 20
62262
F336
0
0000
Password Characters 21 and 22
62263
F337
0
0000
Slave# Function Data
Starting
Address
Number
of
Setpoints
Byte
Count
Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Data 9
FE
10
F322
0016
2C
4164 6D69 6E69 7374 7261 746F 7200 0
0
Data 10 Data 11 Data 12 Data 13 Data 14 Data 15 Data 16 Data17 Data 18 Data 19 Data 20 Data 21 Data 22
0
0
3000 0
0
0
0
0
0
0
0
0
0