CIRCUTOR CEM-M-RS-485 - Manual (Page 14)

4�4�4�- VARIABLES MODBUS
All MODBUS map addresses are hexadecimal.
4�4�4�1�- Configuration variables
The Read and Write functions are implemented for these variables.
Table 4:Modbus configuration 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 configuration 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)
0
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
2
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”
14
CEM M-RS485
Instruction Manual