User Manual

Energy management
EM24-DIN PFA, PFB & X models - Communication Protocol
13
2.9.11 PT and CT configuration menu
MODBUS: read and write mode Table 2.9-11
Modicom
address
Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
304397
112Ch 2 Current transformer ratio UINT 32 Value min = 10 (CT=1,0)
Value max = 600000 (CT=60000.0)
304399
112Eh 2 Voltage transformer ratio UINT 32 Value min = 10 (VT=1,0)
Value max = 60000 (VT=6000.0)
2.9.12 Serial number
MODBUS: read only mode Table 2.9-12
Modicom
address
Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
304865 1300h 1
Letter 1 (from SX)
Letter 2 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304866 1301h 1
Letter 3 (from SX)
Letter 4 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304867 1302h 1
Letter 5 (from SX)
Letter 6 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304868 1303h 1
Letter 7 (from SX)
Letter 8 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304869 1304h 1
Letter 9 (from SX)
Letter 10 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304870 1305h 1
Letter 11 (from SX)
Letter 12 (from SX)
UINT 16 MSB: ASCII code
LSB: ASCII code
304871 1306h 1
Letter 13 (from SX) UINT 16 MSB: ASCII code
2.9.13 Reset commands
MODBUS: write only mode Table 2.9-13
Modicom
address
Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
312289
3000h 1 Reset of all meters (hour
counter excluded)
UINT 16
312290
3001h 1 Reset of total meters
(see note 1), hour
counter excluded
UINT 16
312291
3002h 1 Reset of partial meters
(see note 2)
UINT 16
312292
3003h 1 Reset of hour counter UINT 16
312293
3004h 1 Reset counter 1, 2 and 3 UINT 16
312294
3005h 1 Reset dmd max UINT 16
Value=1: Command is executed
All other values produce no
effects
Note 1: the total meters are
- total kWh imported
- total kvarh imported
- total kWh exported
- total kvarh exported
- kWh L1
- kWh L2
- kWh L3
- kWh T1
- kWh T2
- kWh T3
- kWh T4
- kvarh T1
- kvarh T2
- kvarh T3
- kvarh T4
Note 2: the partial meters are
- partial kWh
- partial kvarh
3 REVISIONS
This is the first release of the EM24-DIN (PFA & PFB models) communication protocol.