Administrator Login And Commands Via Modbus For 8 Series Relays - GE 869 Communications Manual

CHAPTER 10: MODBUS PROTOCOL

Administrator Login and Commands via Modbus for 8 Series Relays

869 MOTOR PROTECTION SYSTEM – COMMUNICATIONS GUIDE
SLAVE RESPONSE
DATA STARTING ADDRESS
NUMBER OF SETPOINTS
CRC
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 10-16: Data Written to Relay to Login as Administrator
Description
Role Characters 1 and 2
Role Characters 3 and 4
Role Characters 5 and 6
Role Characters 7 and 8
Role Characters 9 and 10
Role Characters 11 and 12
Role Characters 13 and 14
Role Characters 15 and 16
Role Characters 17 and 18
Role Characters 19 and 20
Role Characters 21 and 22
Password Characters 1 and 2
Password Characters 3 and 4
Password Characters 5 and 6
Password Characters 7 and 8
Password Characters 9 and 10
Password Characters 11 and 12
Password Characters 13 and 14
Password Characters 15 and 16
Password Characters 17 and 18
Password Characters 19 and 20
Password Characters 21 and 22
Table 10-17: Login as Administrator Function Format
Slave# Function Data Number
Starting of
Address Setpoints
FE 10 F322 0016
BYTES EXAMPLE
2 04 5C
2 00 02
2 82 7A
Memory Map Address
DEC HEX
62242 F322
62243 F323
62244 F324
62245 F325
62246 F326
62247 F327
62248 F328
62249 F329
62250 F32A
62251 F32B
62252 F32C
62253 F32D
62254 F32E
62255 F32F
62256 F330
62257 F331
62258 F332
62259 F333
62260 F334
62261 F335
62262 F336
62263 F337
Byte Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8 Data 9
Count
2C 4164 6D69 6E69 7374 7261 746F 7200 0
MODBUS PROTOCOL
DESCRIPTION
setpoint address 04 5C
2 setpoints
CRC error code
Value to be written
DEC HEX
16740 4164
28009 6D69
28265 6E69
29556 7374
29281 7261
29807 746F
29184 7200
0 0000
0 0000
0 0000
0 0000
12288 3000
0 0000
0 0000
0 0000
0 0000
0 0000
0 0000
0 0000
0 0000
0 0000
0 0000
0
10-7