sepam 20 user manual - Schneider Electric

5
Modbus communication Data addresses and encoding
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Presentation
Data which are similar from the monitoring and control application viewpoint are
grouped together in adjacent address zones:
Hexadecimal Ending Modbus functions
starting address enabled
address
Synchronization zone 0002 0005 3, 16
Identification zone 0006 000F 3
First event table
Exchange word 0040 0040 3, 6, 16
Events (1 to 4) 0041 0060 3
Second event table
Exchange word 0070 0070 3, 6, 16
Events (1 to 4) 0071 0090 3
Data
States 0100 0105 3, 4
1, 2*
Measurements 0106 0131 3, 4
Remote control orders 01F0 01F0 3, 4, 6, 16
1, 2, 5, 15*
Remote control confirmation 01F1 01F1 3, 4, 6, 16
1, 2, 5, 15*
Test zone 0C00 0C0F 3, 4, 6, 16
1, 2, 5, 15
Protection settings
Reading 2000 207C 3
Reading request 2080 2080 3, 6, 16
Remote settings 2100 217C 3, 6
Disturbance recording
Choice of transfer function 2200 2203 3, 16
Identification zone 2204 2228 3
Fault rec. exchange word 2300 2300 3, 6, 16
Fault rec. data 2301 237C 3
Application
Configuration FC00 FC02 3
Application identification FC10 FC22 3
N.B. Non-addressable zones may reply by an exception message or else supply
non-significant data.
(*) these zones may be accessed in word mode or in bit mode.
The address of bit i (0 y i y F) of address word J is then (J x 16) + i.
e.g. 0C00 bit 0 = C000 0C00 bit 7 = C007.
PCRED301005EN - 06/2008