B-6
G650 Generator Protection & Control System
GEK-113285A
B.2 MODBUS G650
APPENDIX B
B
B.2.6 FUNCTION CODES
B.2.7 EXCEPTIONS AND ERROR RESPONDS
The following table shows error codes defined in ModBus protocol:
CODE
MODBUS
NAME
G650
DEFINITION
COMMENT
HEX
DEC
03
3
Read Holding
Registers
Reading of any
value
Any of these two functions allow the master to read 1 or more consecutive relay
addresses. Registers are always 16-bit long with the most important byte first. The
maximum number of registers that can be read in a single package is 125, equivalent
to 250 bytes.
04
4
Read Input
Registers
Reading of any
value
10
16
Preset Multiple
Registers
Writing
This function allows writing 1 or more registers representing one or more settings.
Registers are 2-byte long values, transmitted with the most important byte first. The
maximum number of registers to be written in a single package is 125.
01 ILLEGAL FUNCTION
The slave does not support any function with the received function code in this message.
02 ILLEGAL DATA ADDRESS
Master is trying to perform an operation in an incorrect address.
03 ILLEGAL DATA VALUE
Slave has detected that the value sent by the master is not valid.
04 ILLEGAL RESPONSE LENGTH Indicates that a response to the master’s request would exceed the maximum specified size for
that function code.
05 ACKNOWLEDGE
Generic acknowledgement.
06 SLAVE DEVICE BUSY
Slave is busy and cannot perform the requested operation.
07 NEGATIVE ACKNOWLEDGE
Negative acknowledgement.
Содержание Multilin G650
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Страница 29: ...1 20 G650 Generator Protection Control System GEK 113285A 1 4 650 HARDWARE 1 GETTING STARTED 1 ...
Страница 293: ...5 150 G650 Generator Protection Control System GEK 113285A 5 9 LOGIC CONFIGURATION PLC EDITOR 5 SETTINGS 5 ...
Страница 391: ...11 6 G650 Generator Protection Control System GEK 113285A 11 4 RELAY CONFIGURATION 11 FREQUENTLY ASKED QUESTIONS 11 ...
Страница 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
Страница 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Страница 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
Страница 595: ...D 8 G650 Generator Protection Control System GEK 113285A D 5 IEC 60870 5 104 POINT LIST APPENDIXD D ...
Страница 606: ...GEK 113285A G650 Generator Protection Control System E 11 APPENDIX E E 1 FACTORY DEFAULT LOGIC E ...
Страница 607: ...E 12 G650 Generator Protection Control System GEK 113285A E 1 FACTORY DEFAULT LOGIC APPENDIXE E ...
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