Communications P12x/EN
CT/A96
MODBUS DATABASE
MiCOM P120/P121/P122/P123
Page 5/248
2.2
MODBUS functions of the MiCOM relays
The MODBUS functions implemented on the MiCOM relays are:
Function 1 or 2:
Reading of n bits
Function 3 or 4:
Reading of n words
Function 5:
Writing of 1 bit
Function 6:
Writing of 1 word
Function 7:
Fast reading of 8 bits
Function 8:
Reading of the diagnostics counter
Function 11:
Reading of the Event counter
Function 15:
Writing of n bits
Function 16:
Writing of n words
2.3
Presentation of the MODBUS protocol
Master slave protocol, all exchange understands a master query and a slave response
Frame size received from
MiCOM P120, P121, P122
and
P123
relays
Frame transmitted by the master ( query):
Slave number
Function code
Information
CRC16
1 byte
1 byte
n bytes
2 bytes
0 à FFh
1 à 10h
Slave number:
The slave number is situated between 1 and 255.
A frame transmitted with a slave number 0 is globally addressed to all pieces of equipment
(broadcast frame )
Function code:
Requested MODBUS function (1 to 16)
Information:
Contains the parameters of the selected function.
CRC16:
Value of the CRC16 calculated by the master.
NOTE:
The MiCOM relay does not respond to globally broadcast frames sent
out by the master.
2.3.1
Format of frames sent by the MiCOM relays
Frame sent by the MiCOM relay ( response)
Slave number
Function code
Data
CRC16
1 byte
1 byte
n bytes
2 bytes
1 à FFh
1 à 10h
Slave number:
The slave number is situated between 1 and 255.
Содержание MiCom P120
Страница 1: ...MiCOM P120 P121 P122 P123 Overcurrent Relays Version 11 Technical Guide P12X EN T A96...
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Страница 4: ...P12x EN T A96 Technical Guide Contents Page 2 2 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 13: ...Introduction P12x EN IT A96 MiCOM P120 P121 P122 P123 INTRODUCTION...
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Страница 16: ...P12x EN IT A96 Introduction Page 2 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 22: ...P12x EN IT A96 Introduction Page 8 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Страница 26: ...P12x EN IN A96 Handling Installation and Case Dimensions Page 2 10 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 35: ...User Guide P12x EN FT A96 MiCOM P120 P121 P122 P123 USER GUIDE...
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Страница 40: ...P12x EN FT A96 User Guide Page 4 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 108: ...P12x EN FT A96 User Guide Page 72 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 109: ...Menu Content Tables P12x EN HI A96 MiCOM P120 P121 P122 P123 MENU CONTENT TABLES...
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Страница 112: ...P12x EN HI A96 Menu Content Tables Page 2 68 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 179: ...Technical Data P12x EN TD A96 MiCOM P120 P121 P122 P123 TECHNICAL DATA AND CHARACTERISTIC CURVES...
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Страница 221: ...Application Guide P12x EN AP A96 MiCOM P120 P121 P122 P123 APPLICATION GUIDE...
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Страница 226: ...P12x EN AP A96 Application Guide Page 4 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 302: ...P12x EN AP A96 Application Guide Page 80 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Страница 305: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 MODBUS DATABASE MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 367: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 COURIER DATABASE MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 370: ...P12x EN CT A96 Communications COURIER DATABASE Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 514: ...P12x EN CT A96 Communications COURIER DATABASE Page 146 248 MiCOM P120 P121 P122 P123...
Страница 515: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 IEC 60870 5 103 MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 518: ...P12x EN CT A96 Communications IIEC 60870 5 103 Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 536: ...P12x EN CT A96 Communications IEC 60870 5 103 Page 20 248 MiCOM P120 P121 P122 P123...
Страница 537: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 DNP 3 0 DATABASE MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 540: ...P12x EN CT A96 Communications DNP 3 0 Database Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 553: ...Commissioning and Maintenance P12x EN CM A96 MiCOM P120 P121 P122 P123 COMMISSIONING AND MAINTENANCE GUIDE...
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Страница 573: ...Connection Diagrams P12x EN CO A96 MiCOM P120 P121 P122 P123 CONNECTION DIAGRAMS...
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Страница 579: ...Commissioning Test Record Sheets P12x EN RS A96 MiCOM P120 P121 P122 P123 COMMISSIONING TEST RECORD SHEETS...
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Страница 582: ...P12x EN RS A96 Commissioning Test Record Sheets Page 2 60 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 640: ...P12x EN RS A96 Commissioning Test Record Sheets Page 60 60 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Страница 644: ...P12x EN VC A96 Hardware Software Version History and Compatibility Page 2 26 MiCOM P120 P121 P122 P123 BLANK PAGE...
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