sepam 20 user manual - Schneider Electric
sepam 20 user manual - Schneider Electric
sepam 20 user manual - Schneider Electric
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Modbus communication Data addresses and encoding<br />
PCRED301005EN - 06/<strong>20</strong>08<br />
Measurement zone (B<strong>20</strong>, B21, B22 types)<br />
Measurements Word address Access Modbus function<br />
enabled<br />
Format Unit<br />
U21 phase to phase voltage (x1) 106 R 3/4 16NS 1 V<br />
U32 phase to phase voltage (x1) 107 R 3/4 16NS 1 V<br />
U13 phase to phase voltage (x1) 108 R 3/4 16NS 1 V<br />
V1 phase to neutral voltage (x1) 109 R 3/4 16NS 1 V<br />
V2 phase to neutral voltage (x1) 10A R 3/4 16NS 1 V<br />
V3 phase to neutral voltage (x1) 10B R 3/4 16NS 1 V<br />
V0 residual voltage (x1) 10C R 3/4 16NS 1 V<br />
Positive sequence voltage (x1) 10D R 3/4 16NS 1 V<br />
Frequency 10E R 3/4 16NS 0.01 Hz<br />
U21 phase to phase voltage (x10) 10F R 3/4 16NS 1 V<br />
U32 phase to phase voltage (x10) 110 R 3/4 16NS 1 V<br />
U13 phase to phase voltage (x10) 111 R 3/4 16NS 1 V<br />
V1 phase to neutral voltage (x10) 112 R 3/4 16NS 1 V<br />
V2 phase to neutral voltage (x10) 113 R 3/4 16NS 1 V<br />
V3 phase to neutral voltage (x10) 114 R 3/4 16NS 1 V<br />
V0 residual voltage (x10) 115 R 3/4 16NS 1 V<br />
Positive sequence voltage (x10) 116 R 3/4 16NS 1 V<br />
Reserved 117/131 R 3/4 init. to 0<br />
Reserved 132/1EF Prohibited<br />
Accuracy<br />
The accuracy of the measurements depends on the<br />
order of the unit: it is equal to the value of the point<br />
divided by 2.<br />
Examples<br />
I1 Unit = 1 A Accuracy = 1/2 = 0.5 A<br />
U21 Unit = 10 V Accuracy = 10/2 = 5 V<br />
Remote control zone<br />
The remote control zone is a table which contains the pre-assigned remote control<br />
bits (TC). The zone may be read or written using the word functions or bit functions.<br />
See section on remote control orders.<br />
Remote control bits Word address Bit address Access Modbus function<br />
enabled<br />
Format<br />
TC1-TC16 01F0 1F00 R/W 3/4/6/16<br />
1/2/5/15<br />
3/4/6/16<br />
B<br />
STC1-STC16 01F1 1F10 R/W 1/2/5/15 B<br />
Analog output control 01F2 R/W 3/4/6/16 16S<br />
Protection setting zone<br />
The protection setting zone is an exchange table which is used to read and set<br />
protections.<br />
Protection settings Word address Access Modbus function<br />
enabled<br />
Setting read buffer <strong>20</strong>00/<strong>20</strong>7C R 3<br />
Setting read request <strong>20</strong>80 R/W 3/6/16 -<br />
Remote setting request buffer<br />
See section on protection settings.<br />
2100/217C R/W 3/16<br />
5/11<br />
5
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