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ANNEX 3 MODBUS MEMORY MAP
13-2
MIF Digital Feeder Protection
GEK-106273L
13.2
COMMAND EXECUTION
Commands are executed in two steps: selection and confirmation. First, we must send the command or operation
selection command, to verify that it is available. If so, we will send the confirmation. The structure for both commands
is the same, the only variation is the associated code.
The MODBUS
®
function code used for the execution of operations is 16 (10H) in the hexadecimal value associated to
the function (PRESET MULTIPLE SETPOINTS). As it is a writing, we must give an address where the command will
be written. By default this address is 0 (0000H) for all commands.
The implemented commands are as follows:
COMMAND SELECTION
(HEX) CONFIRMATION
(HEX)
LEDs and latched outputs reset
08
09
Change to Table 1
0D
0E
Change to Table 2
0F
10
Oscillography trigger
17
18
Open breaker
07
08
Close breaker
39
3A
Time synchronization
FE
N/A
Setting change
01
02
SELECTION:
Request:
FIELD LENGTH
Relay address
1 Byte
Function
1 Byte (10H)
Beginning
1 word (0000H) (High byte – low byte)
No. of records
1 word (0001H) (High byte – low byte)
No. of bytes
1 Bytes (02H)
Value of the records
Record1=>Command code (High byte – low byte)
CRC
1 word
Reply:
FIELD LENGTH
Relay address
1 Byte
Function
1 Byte (10H)
Beginning address
1 word (0000H) (High byte – low byte)
No. of records
1 word (0003H) (High byte – low byte)
CRC
1 word
Example:
We send the command corresponding to the group of values. For example, if we want to activate Table 2, the
opening command will be the 15 (0F00H).
ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0
CRC
01 10 0000
00
01
02
0F00
A3A0
Reply:
ADDRESS FUNCTION BEGINNING #REGS CRC
01 10 0000
0001
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 ...