Circutor CEM-M-RS-485 Instrukcja Użytkownika Pobierz pdf (Strona 14)

4�4�4�- VARIABLES MODBUS

All MODBUS map addresses are hexadecimal.

4�4�4�1�- Conguration variables

The Read and Write functions are implemented for these variables.

Table 4:Modbus conguration variables CEM M-RS485.

Description Address Size Valid data range

Default

value

Modbus address 0x03E8 16 bits 1 ... 254 1

Transmission speed

(Baudrate)

0x03E9 16 bits 0: 9600, 1:19200, 2: 38400 0: 9600

Communications conguration 0x03EA 16 bits

0: 8N1 ( 8 bits - No parity -1 stop bit)

1: 8E1 ( 8 bits - Even parity -1 stop bit)

2: 8O1 ( 8 bits - Odd parity -1 stop bit)

3: 8N2 ( 8 bits - No parity -2 stop bit)

4: 8E2 ( 8 bits - Even parity -2 stop bit)

5: 8O2 ( 8 bits - Odd parity -2 stop bit)

Impulse output type 0x0080 16 bits 0: Active energy, 1: Reactive energy 0

Impulse output weight 0x0081 16 bits Wh/impulse 0 ... 99999 -

Cost per kWh 0x00B0 32 bits

0.0000 ... 9999.9999 with 4 decimal places

of resolution

KgCO

0x00B2 32 bits

0.0000 ... 9.0000 with 4 decimal places of

resolution

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”

4�4�4�2�- Energy

The Read function is implemented for these variables.

Table 5: Modbus variables: Energy

Description Address Size Units

Total values

Imported active energy 0x0000 32 bits Wh

Exported active energy 0x0002 32 bits Wh

Q1 reactive energy 0x0004 32 bits varh

Q2 reactive energy 0x0006 32 bits varh

Q3 reactive energy 0x0008 32 bits varh

Q4 reactive energy 0x000A 32 bits varh

Partial values

Partial imported active energy 0x0030 32 bits Wh

Partial exported active energy 0x0032 32 bits Wh

Q1 partial reactive energy 0x0034 32 bits varh

Q2 partial reactive energy 0x0036 32 bits varh

Q3 partial reactive energy 0x0038 32 bits varh

Q4 partial reactive energy 0x003A 32 bits varh

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”

CEM M-RS485

Instruction Manual

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 25 26

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