C# NModbus get String form byte[]

Question

I using NModbus4.dll to communicate with modbus device. I read this register:

Register: 0257-0288

Number of registers:32

Variable name: monitor buffer area

Data type: BCD

Description: readable

Using this code:

byte slaveId = byte.Parse ("1");
ushort startAddress = 257;
ushort[] readValue =  _serialMaster.ReadHoldingRegisters(slaveId, startAddress, 32);
byte[] asciiValue = Modbus.Utility.ModbusUtility.GetAsciiBytes(readValue);
string result = System.Text.Encoding.UTF8.GetString(asciiValue);

I use this converter to convert from hex to text and i get this:

epO tureD aiemet r 7 646.58 mm 4

This register is to read device lcd content, and this content is:

Pipe Outer Perimeter 2345.78 mm

I can't get correct lcd content.

score 0 · Answer 1 · answered Jan 07 '18 at 17:57

0

According to source code, GetAsciiBytes method applies the conversation with UTF8;

string result = Encoding.UTF8.GetString(asciiValue);

answered Jan 07 '18 at 17:57

lucky

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I already try this, but it give's me same results. I changed post. – DjuricS. Jan 07 '18 at 18:50
I think, there is no mistake in the code. Would you try to set register count to read as 16 or 64 ? – lucky Jan 07 '18 at 18:54

score 0 · Answer 2 · answered Jan 12 '18 at 22:28

0

I solved problem. There is no problem in code, device response is bad.

answered Jan 12 '18 at 22:28

DjuricS.

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C# NModbus get String form byte[]

2 Answers2