Return codes

Hex

Dezimal

Source

0x00000000-0x00007800

0-30720

TwinCAT System return codes

 

0x00008000-0x000080FF

32768-33023

Internal TwinCAT Modbus TCP

0x80070000-0x8007FFFF

2147942400-2148007935

Returncode - 0x80070000 = Win32 System Returncode

 

TwinCAT Modbus TCP return code

Function specific ADS return code

Possible reason

0x8001

Modbus function not implemented

0x8002

Invalid address or length

0x8003

Invalid parameters:

- wrong number of registers

0x8004

Modbus server error