Store Multiple Settings (Function Code 10H; Exception Responses - GE G60 Instruction Manual

Ur series generator management relay
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APPENDIX B
This function code allows the master to modify the contents of a one or more consecutive setting registers in a relay. Setting
registers are 16-bit (two byte) values transmitted high order byte first. The maximum number of setting registers that can be
stored in a single packet is 60. The following table shows the format of the master and slave packets. The example shows
a master device storing the value 200 at memory map address 4051h, and the value 1 at memory map address 4052h to
slave device 11h (17 decimal).
Table B–7: MASTER AND SLAVE DEVICE PACKET TRANSMISSION EXAMPLE
MASTER TRANSMISSION
PACKET FORMAT
SLAVE ADDRESS
FUNCTION CODE
DATA STARTING ADDRESS - hi
DATA STARTING ADDRESS - lo
NUMBER OF SETTINGS - hi
NUMBER OF SETTINGS - lo
BYTE COUNT
DATA #1 - high order byte
DATA #1 - low order byte
DATA #2 - high order byte
DATA #2 - low order byte
CRC - low order byte
CRC - high order byte
Programming or operation errors usually happen because of illegal data in a packet. These errors result in an exception
response from the slave. The slave detecting one of these errors sends a response packet to the master with the high order
bit of the function code set to 1.
The following table shows the format of the master and slave packets. The example shows a master device sending the
unsupported function code 39h to slave device 11.
Table B–8: MASTER AND SLAVE DEVICE PACKET TRANSMISSION EXAMPLE
MASTER TRANSMISSION
PACKET FORMAT
SLAVE ADDRESS
FUNCTION CODE
CRC - low order byte
CRC - high order byte
GE Multilin
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H)
SLAVE RESPONSE
EXAMPLE (HEX)
PACKET FORMAT
11
SLAVE ADDRESS
10
FUNCTION CODE
40
DATA STARTING ADDRESS - hi
51
DATA STARTING ADDRESS - lo
00
NUMBER OF SETTINGS - hi
02
NUMBER OF SETTINGS - lo
04
CRC - lo
00
CRC - hi
C8
00
01
12
62
SLAVE RESPONSE
EXAMPLE (HEX)
PACKET FORMAT
11
SLAVE ADDRESS
39
FUNCTION CODE
CD
ERROR CODE
F2
CRC - low order byte
CRC - high order byte
G60 Generator Management Relay
B.2 MODBUS FUNCTION CODES
EXMAPLE (HEX)
11
10
40
51
00
02
07
64
B.2.6 EXCEPTION RESPONSES
EXAMPLE (HEX)
11
B9
01
93
95
B
B-5

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