AccuEnergy Acuvim II series User Manual

194
5.3.15 Format of function code 03H
This function code is used in MODBUS-RTU to read the contents of a continuous
block of holding registers in Acuvim II meter. In PROFIBUS-DP, the format of
function code 03H is dened as follows:
Table 5-26
Query
Frame Bytes Caption
Byte1 Channels can be chosen from 1 to 8
Byte2 03H
Byte3 starting address high byte
Byte4 starting address low byte
Byte5 quantity of registers high byte
Byte6 quantity of registers low byte
Byte7~32 0
“Quantity of registers” indenties how many words will be read.
Table 5-27
Response
Frame Bytes Caption
Byte1 The channel of inquiry frame
Byte2 03H
Byte3 byte count
Byte4 Register value1 high byte
Byte5 Register value1 low byte
Byte6
......
Byte32
......
“Byte count” indenties how many bytes will be read.
The register data in the response message is packed as two bytes per register,

AccuEnergy Acuvim II series Specifications

General

Brand	AccuEnergy
Model	Acuvim II series
Category	Measuring Instruments
Language	English