Circutor CEM-M-RS-485 Instrukcja Użytkownika Pobierz pdf (Strona 16)

4�4�4�5�- Other parameters

The Read function is implemented for these variables.

Table 8: Modbus variables: Other parameters�

Description Address Size Units

Energy meter model

0xF010 6x16 bits 12 bytes in ASCII format

Serial no 0x2710 32 bits -

Transformation ratios

Voltage primary 0x044C 32 bits V (1 decimal place)

Voltage secondary 0x044E 32 bits V (1 decimal place)

Current primary 0x0450 32 bits A (1 decimal place)

Current secondary 0x0452 32 bits A (1 decimal place)

Energy meter rmware version

Higher rmware version 0x0050 16 bits -

Lower rmware version 0x0051 16 bits -

Revised rmware version 0x0052 16 bits -

Communications module rmware version

Higher rmware version 0x0578 16 bits -

Lower rmware version 0x0579 16 bits -

Revised rmware version 0x057A 16 bits -

Note: Some MODBUS variables may not be available depending on the CEM energy meter

coupled to the CEM M-RS485. See “4.4.4.7.- Available addresses by unit”

(1)

Energy meter model description table, Table 9�

Table 9: Energy meter model description table�

Options C10 C20 C30

bytes in ASCII

format

Connection mode

2 wires



4 wires

 

Accuracy

Class B active / Does not measure

reactive energy

  

Class B active / Class 2.0 reactive

  

Measurement voltage

1x230



1x127



3x127/220 ... 3x230/400 V



3x127/220 V

 

3x230/400 V

 

3x57/100 ... 3x230/400 V



3x57/100 V



3x63.5/110 V



Current measurement

Shunt 10(60) A



Shunt 5(65) A



Direct 10(60)A



Direct 5(65)A



Transformer 5(10) A



Transformer 5(6) A



CEM M-RS485

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