Diagnostics; Fieldbus Coupler Diagnostics; Led Signaling; Evaluating Fieldbus Status - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-354/000-001 EtherCAT® Fieldbus Coupler, ID Switch
9

Diagnostics

The fieldbus coupler supplies diagnostic information about:
• The communication between the fieldbus coupler and the EtherCAT
master
• The communication between the fieldbus coupler and the I/O modules
• The diagnostic status of the I/O modules.
9.1

Fieldbus Coupler Diagnostics

9.1.1

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 43: 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 95: LED Assignment for Diagnostics

Diagnostics area
Fieldbus status
9.1.2

Evaluating Fieldbus Status

The status of the fieldbus is signaled through the top LED group
('L/A IN', 'L/A OUT', 'RUN' and 'ERR').
The light emitting diode labeled "L/A IN" is assigned to interface X1. The light
emitting diode labeled "L/A OUT" is assigned to interface X2. The light emitting
diodes "RUN" and "ERR" display general information about the status of the
EtherCAT
Node status

slave.
LEDs
• L/A IN
• L/A OUT
• RUN
• ERR
• I/O
Diagnostics 121

Manual
Version 1.2.1