Evaluating Fieldbus Status. WAGO MODBUS Fieldbus Coupler RTU

WAGO-I/O-SYSTEM 750

750-316/300-000 Fieldbus Coupler MODBUS RTU

Diagnostics 81

9.1.1 Evaluating Fieldbus Status

Communication status via the fieldbus is indicated by the top LED group (ON,

TxD, RxD and CRC).

Table 33: Fieldbus Diagnostics – Solution in Event of Error

LED

Status

Explanation Remedy

ON green

OFF

TxD/RxD

Initialization OK

Initialization failed, no function or self-test

-

1. Check the power supply (24 V, 0

V) and the IP configuration. green

OFF

Data is being exchanged via the

RS-232 interface.

No data is being exchanged via the

RS-232 interface.

-

-

CRC red

OFF

Checksum error in the received

MODBUS telegram

Nor error, normal operation

1. Check the serial connection or the interface parameters.

-

Manual

Version 1.0.0