80 Diagnostics

9 Diagnostics

WAGO-I/O-SYSTEM 750

750-316/300-000 Fieldbus Coupler MODBUS RTU

9.1 LED Signaling

For on-site diagnostics, the fieldbus coupler has several LEDs that indicate the operational status of the fieldbus coupler or the entire node (see following figure).

Figure 41: Display Elements

The diagnostics displays and their significance are explained in detail in the following section.

The LEDs are assigned in groups to the various diagnostics areas:

Table 32: LED Assignment for Diagnostics

Diagnostics area LEDs

Fieldbus status

Node status

Status Supply Voltage

• ON

• TxD

• RxD

• CRC

• I/O

• A (system supply)

• B (field supply)

Manual

Version 1.0.0