Modbus-RTU Example Connection A-3MN448
A.6 Modbus Register Map
Table A-1 Control and status registers
NOTE: All registers are Holding Registers
Register
Number
Parameter
Number
Upper Byte Lower Byte Format Min Max Command Type Scaling
1 - Control Word WORD - - 03,06 R/W See Below
2 - Frequency Setpoint S16 -5000 5000 03,06 R/W 1dp, e.g. 100 = 10.0Hz
3 - Reserved - - - 03,06 R/W No function
4 - Modbus ramp control time U16 0 60000 03,06 R/W 2dp, e.g. 500 = 5.00s
5 - Reserved - - - 03,06 R No function
6 - Error code Drive status WORD - - 03 R See Below
7 - Output Frequency S16 0 5000 03 R 1dp, e.g. 100 = 10.0Hz
8 - Motor Current U16 0 - 03 R 1dp, e.g. 100 = 10.0A
9 - Motor Torque S16 0 2000 03 R 1dp, e.g. 100 = 10.0%
10 - Motor Power U16 0 - 03 R 2dp, e.g. 100 = 1.00kW
11 0160 Digital Input Status WORD - - 03 R See Below
12 3304 Rating ID U16 - - 03 R Internal Value
13 3304 Power rating U16 - - 03 R 2dp, e.g. 37 = 0.37kW / HP
14 3304 Voltage rating U16
- - 03 R See Below
15 0192 IO processor software version U16 - - 03 R 2dp, e.g. 300 = 3.00
16 3301 Motor control processor software
version
U16 - - 03 R 2dp, e.g. 300 = 3.00
17 3304 Drive type U16 - - 03 R Internal Value
20 0120 Analog 1 input result U16 0 1000 03 R 1dp, e.g. 500 = 50.0%
21 0121 Analog 2 input result U16 0 1000 03 R 1dp, e.g. 500 = 50.0%
22 0111 Pre Ramp Speed Reference Value S16 0 5000 03 R 1dp, e.g. 500 = 50.0Hz
23 0107 DC Bus Voltage U16 0 1000 03 R 600 = 600 Volts
24 0110 Drive Power Stage Temperature S16 -10 150 03 R 50 = 50°C
29 - Relay Output Status WORD 0 1 03 R Bit 0 Indicates Relay Status
1 = Relay Contacts Closed
32 0115 kWh Meter U16 0 9999 03 R 1dp, e.g. 100 = 10.0kWh
33 0115 MWh Meter U16 0 03 R 10 = 10MWh
34 0140 Running Time - Hours U16 03 R 1 = 1 Hour
35 0140 Running Time - Minutes & Seconds U16 03 R 100 = 100 Seconds
36 0416 Run time since last enable - Hours U16 03 R 1 = 1 Hour
37 0416 Run time since last enable -
Minutes & seconds
U16 03 R 100 = 100 Seconds
38 - Reserved U16 03 R No Function
39 0150 Internal Drive Temperature S16 -10 100 03 R 20 = 20C
40 - Speed Reference (Internal Format) U16 0 2008 03 R 3000 = 50Hz
41 - Reserved - - - 03 R No Function
42 Digital Pot / Keypad Reference U16 0 2008 03 R 3000 = 50Hz
43 0109 Output Voltage U16 0 - 03 R 100 = 100 Volts AC RMS
Format
WORD = WORD Format, functions assigned to individual bits
S16 = Signed 16 Bit Integer
U16 = Unsigned 16 bit Integer
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