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Communication with Modbus
2CMC48001M0201
105
A43/A44
Revision: C
User Manual
Error check (CRC), high byte
0x62
Error check (CRC), low byte
0xDE
Response frame
Using function code 6, the response frame is an echo of the request frame.
9.2.3.1 Exception Responses
General
If an error should occur while processing a request, the meter gives an exception
response that contains an exception code.
Exception frame
An exception frame has the following structure:
Slave Address
Function Code
Exception Code
Error Check
In the exception response the function code is set to the function code of the
request plus 0x80.
Exception codes
The exception codes that are used are listed in the following table:
Exception code
Exception
Definition
01
Illegal function
A function code that is not supported has
been used.
02
Illegal data address
The requested register is outside the
allowed range.
03
Illegal data value
The structure of a received message is
incorrect.
04
Slave device failure
Processing the request fail due to an
internal error in the meter.
Summary of Contents for A43
Page 1: ...A43 A44 User Manual ...
Page 40: ...Meter Settings A43 A44 40 2CMC48001M0201 User Manual Revision C ...
Page 55: ...Technical Description 2CMC48001M0201 55 A43 A44 Revision C User Manual ...
Page 58: ...Technical Description A43 A44 58 2CMC48001M0201 User Manual Revision C ...
Page 61: ...Technical Description 2CMC48001M0201 61 A43 A44 Revision C User Manual ...
Page 75: ...Technical Description 2CMC48001M0201 75 A43 A44 Revision C User Manual ...
Page 84: ...Measurement Methods A43 A44 84 2CMC48001M0201 User Manual Revision C ...
Page 91: ...Measurement Methods 2CMC48001M0201 91 A43 A44 Revision C User Manual ...
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