AccuEnergy AcuDC 241 User Manual

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V: 1.0 Revised: Jan. 2018
70
AcuDC 240 Series
DC Energy & Power meters
B.2.5 Read Data (Function Code 03)
Query
Function Code 16 (10 H Hex) allows the user to modify the contents of multiple registers.
AcuDC 240 system parameters can be written by this function code.
The following example depicts how to preset slave device 1’s AO1 parameter (current),
lower limit sign (+), lower limit value (0%), upper limit sign(+), upper limit value (100%)
Table B-12 Query Frame of Preset Multiple Registers
Response
The correct response is to send back the address, function code; data starting address,
data number, CRC check after the value is changed.
Table B-13 Preset Multiple Registers Response
Addr Fun
Data Start
Reg Hi
Data Start
Reg Lo
Data # of
Regs Hi
Data # of
Regs Lo
Byte Count Value 1 Hi Value 1 Lo
Hex 01H 10H 01H 09H 00H 05H 0AH 00H 01H
Dec 1 1 9 0 5 10 0 1
Value 2 Hi
Value
2 Lo
Value 3 Hi
Value
3 Lo
Value 4 Hi
Value
4 Lo
Value 5 Hi
Value
5 Lo
CRC 16 Hi CRC 16 Lo
00H 00H 00H 00H 00H 00 00H 64H C5H 8AH
0 0 0 0 0 0 0 100 197 138
Addr Fun
Data Start
Reg Hi
Data Start
Reg Lo
Data # of
Regs Hi
Data # of
Regs Lo
CRC 16 Hi CRC 16 Lo
Hex 01H 10H 01H 09H 00H 05H D1H F4H
Dec 1 16 1 9 0 5 209 244

AccuEnergy AcuDC 241 Specifications

General

Brand	AccuEnergy
Model	AcuDC 241
Category	Measuring Instruments
Language	English