AVC ModBus Protocol 自动电压控制调度电源 modbus协议数据采集对接调试

Revision	Section	Details
R1.0		Initial Release
R1.1		Address 1: definition of Status is updated Added Frequency, Setting and Target Output Voltage
R1.2		Added Output Current, and registers address of the 12 to 20 are updated
R1.3		Status bit10 added for Iout over limit. Bit position of overheat and by-pass contactor error moved Added Temperature2, Max output current limit, Calibration of Vin[3], Vout[3], Iin[3], Iout[3]
R1.4		ModBus address set by DIP switch

Physical Layer Setting

- 19200

- 8 bit

- No Parity

- 1 stop bit

Supported ModBus Command

- Read Data by Command 04 (0x04) Read Input Registers.

- Write Data by Command 16 (0x10) - Write Multiple registers.

- No ack for all the unsupported command.

- Reply within 20ms after command is received

Address is set by DIP switch.

- Slave Address = 1 to 16, set by DIP switch:

DIP switch position 2,3,4,5 to set the ModBus address:

n Pos 2 for A3, Pos 3 for A2, Pos 4 for A1, Pos 5 for A0

n ModBus address = (Binary value of A3, A2, A1, A0) + 1

Example:

DIP switch position 2,3,4,5	ModBus Address
All at OFF position	1
All at OFF, except position 5 = ON	2
All at ON position	16

- Broadcasts Address = 0x0

ModBus Register Map

Address	Register Name	Data format	Type	R/W	Description
0	Firmware Version	unsigned 16bit	ID	R
1	Status	unsigned 16bit	Live Status	R	Lowest 3 bit (Bit 0,1,2) = Operating Mode: 0 = Protected Mode 1 = Soft Start Mode 2 = Normal operation Other value = reserved, not used The Bit 3 to Bit 11 = Alarm, =1 means Error found Bit 3: Phase Error Bit 4: Freq Error Bit 5: Vin Over Error Bit 6: Vin Under Error Bit 7: Vo Over Error Bit 8: Vo Under Error Bit 9: I in Over Error Bit 10: I out Over Error Bit 11: Over heat Error Bit 12: By Pass Contactor Error
2	Input voltage – L1	unsigned 16bit	Live Status	R	Unit is 0.1V(rms) Eg. Value = 2218 means 221.8V
3	Input voltage – L2	unsigned 16bit	Live	R	Same as above
4	Input voltage – L3	unsigned 16bit	Live	R	Same as above
5	Output voltage – L1	unsigned 16bit	Live	R	Same as above
6	Output voltage – L2	unsigned 16bit	Live	R	Same as above
7	Output voltage – L3	unsigned 16bit	Live	R	Same as above
8	Input current – L1	unsigned 16 bit	Live	R	Unit is 0.1A(rms) Eg. Value = 103 means 10.3V
9	Input current – L2	unsigned 16bit	Live	R	Same as above
10	Input current – L3	unsigned 16bit	Live	R	Same as above

11	Reserved	Unsigned 16 bit	NA	R	Reserved
12	Output current – L1	unsigned 16 bit	Live	R	Unit is 0.1A(rms) Eg. Value = 103 means 10.3V
13	Output current – L2	unsigned 16bit	Live	R	Same as above
14	Output current – L3	unsigned 16bit	Live	R	Same as above
15	Frequency	unsigned 16bit	Live	R	Unit is 0.1Hz Eg. Value = 496 means 49.6Hz
16	Temperature1	signed 16bit	Live	R	Temperature of the Heat Sink Unit is ℃
17	Temperature2	signed 16bit	Live	R	Temperature of the Heat Sink Unit is ℃
18	Min Input voltage	unsigned 16bit	Setting	R/W	Shunt down when Input Voltage is below this value RMS, 0.1V per count. Eg. 2205 means 220.5V
19	Max Input voltage	unsigned 16bit	Setting	R/W	Shunt down when Input Voltage is above this value RMS, 0.1V per count. Eg. 2205 means 220.5V
20	Max Input current	unsigned 16bit	Setting	R/W	Shunt down when Input Current is above this value RMS, 0.1A per count. Eg. 215 means 21.5V
21	Max Output current	unsigned 16bit	Setting	R/W	Shunt down when Output Current is above this value RMS, 0.1A per count. Eg. 215 means 21.5V
22	Alarm Delay	unsigned 16bit	Setting	R/W	Delay time of Sending the Alarm to Dry Contact output
23	Setting	unsigned 16bit	Setting	R/W	Bit 0: = 0 means single phase = 1 means 3 phase Bit 1..15: reserved
24	Reserved	Unsigned 16bit	NA	R	Reserved
25	Target Output Voltage	Unsigned 16bit	Setting	R/W	Set the Output Voltage Unit is 0.1V(rms) Eg. Value = 2218 means 221.8V
26	Vin Calibration - L1	Unsigned 16 bit	Calibration	R/W	Gain = Vin_Calibration / 1000 Eg. 1027 means 1.027
27	Vin Calibration – L2	Unsigned 16 bit	Calibration	R/W	Similar as above
28	Vin Calibration – L3	Unsigned 16 bit	Calibration	R/W	Similar as above
29	Vout Calibration - L1	Unsigned 16 bit	Calibration	R/W	Gain = Vout_Calibration / 1000 Eg. 1027 means 1.027
30	Vout Calibration – L2	Unsigned 16 bit	Calibration	R/W	Similar as above
31	Vout Calibration – L3	Unsigned 16 bit	Calibration	R/W	Similar as above
32	I in Calibration - L1	Unsigned 16 bit	Calibration	R/W	Gain = I in_Calibration / 1000 Eg. 1027 means 1.027
33	I in Calibration – L2	Unsigned 16 bit	Calibration	R/W	Similar as above
34	I in Calibration – L3	Unsigned 16 bit	Calibration	R/W	Similar as above
35	I out Calibration - L1	Unsigned 16 bit	Calibration	R/W	Gain = I out_Calibration / 1000 Eg. 1027 means 1.027
36	I out Calibration – L2	Unsigned 16 bit	Calibration	R/W	Similar as above
37	I out Calibration – L3	Unsigned 16 bit	Calibration	R/W	Similar as above