ICP DAS USA tGw-735

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Tiny Modbus/TCP to RTU/ASCII Gateway

 Defined Exception Codes for tGW-700/GW-2200:

Code

Name and Description

0x0B

GAT EWAY TARGET DEVICE FAILED TO RESPOND

Timeout. The slave device does not respond within the timeout value, the tGW-700/GW-2200 will return this

code.

0x4B

GAT EWAY TARGET DATA FAILED TO RESPOND

Timeout. The slave device is still sending data when timed out, the tGW-700/GW-2200 will return this code.

Please use larger Slave Timeout value for the serial port of the tGW-700/GW-2200 module.

0x41

MODBUS PROTOCOL FORMAT ERROR

The tGW-700/GW-2200 will return this code when slave response is invalid Modbus message.

0x42

WRONG DATA LENGTH

The tGW-700/GW-2200 will return this code when tGW-700/GW-2200 received wrong data length.

Please use larger Slave Timeout value for the serial port of the tGW-700/GW-2200 module.

0x43

CRC ERROR

The tGW-700/GW-2200 will return this code when the CRC of the slave response is wrong.

ICP DAS USA tGw-735 - Page 101