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ANNEX 3 MODBUS MEMORY MAP
GEK-106273L
MIF Digital Feeder Protection
13-5
13.4
WRITING SETTINGS
There are three steps to write a settings:
1.
Executing a selection command using code 01 00H. (See command execution).
2.
Changing the setting
3.
Executing a confirmation command using code (See command execution).
For modifying a setting, we will use function 10H (PRESET MULTIPLE REGISTERS de MODBUS
®
)
FIELD LENGTH
Relay address
1 Byte
Function
1 Byte (10H)
Beginning
1 word (High byte – low byte)
No. of records
1 word (High byte – low byte)
No. of bytes
1 Byte
Value of the records
(High byte – low byte)
CRC
1 word
Reply:
FIELD LENGTH
Relay address
1 Byte
Function
1 Byte (10H)
Beginning address
1 word
No. of records
1 word
CRC 1
word
Example
:
In this example, we will modify the Identification setting of a relay that stores this information in position
0118H of its memory map. The relay identification is an ASCII text of 16 characters.
1. SETTING CHANGE SELECTION (LIKE A COMMAND)
Request:
ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0 CRC
01 10 0000
0001
02
0100
A7C0
Reply:
ADDRESS FUNCTION BEGINNING #REGS CRC
01 10
0000
00
01
01C9
Содержание GEK-106273L
Страница 19: ...GETTING STARTED 1 12 MIF Digital Feeder Protection GEK 106273L ...
Страница 95: ...SETTINGS 5 38 MIF Digital Feeder Protection GEK 106273L ...
Страница 101: ...I O CONFIGURATION 6 44 MIF Digital Feeder Protection GEK 106273L ...
Страница 127: ...KEYPAD AND DISPLAY 8 26 MIF Digital Feeder Protection GEK 106273L ...
Страница 147: ...INSTALLATION AND MAINTENANCE 10 2 MIF Digital Feeder Protection GEK 106273L ...
Страница 154: ...ANNEX 1 THERMAL IMAGE UNIT GEK 106273L MIF Digital Feeder Protection 11 7 Figure A 1 1 THERMAL CURVE FOR τ1 3 MINUTES ...
Страница 155: ...ANNEX 1 THERMAL IMAGE UNIT 11 8 MIF Digital Feeder Protection GEK 106273L Figure A 1 2 THERMAL CURVES FOR τ1 3 MIN ...
Страница 199: ...ANNEX 5 HARMONIC FILTERING 15 4 MIF Digital Feeder Protection GEK 106273L ...