Error Response; Fieldbus Failure; Table 63: Diagnosis Of Fieldbus Failure - WAGO 750-370 Manual

WAGO-I/O-System 750
750-370 PROFINET IO Fieldbus Coupler
Pos : 75.17 /Serie 750 ( WAGO-I/O-SYST EM)/Diagnos e/F eldbus koppler/-c ontroll er/F ehl er ver halten, F el dbus aus fall ( 750- 0370) @ 23\mod_1439209493262_21.doc x @ 187736 @ 23 @ 1
10.2

Error response

10.2.1

Fieldbus Failure

A fieldbus failure is indicated, for example, if the master is switched off or if the
bus cable is interrupted. An error at the master can also result in a fieldbus failure.
A fieldbus failure is indicated by the red "BF" LED.
When the fieldbus fails, the fieldbus coupler can release the configurable
substitute values of the I/O modules. A substitute value can be determined for
each channel when configuring the inputs and outputs.

Table 63: Diagnosis of Fieldbus Failure

Substitute value strategy
Minimum value
Maximum value
Substitute value
Stop the internal bus
The fieldbus coupler enters the values in the output process image. With I/O
modules that have a byte- or word-oriented data width (e. g., pulse width module),
the substitute value is determined using the value range.
As soon as the fieldbus is reactivated, the process data is transmitted again and the
outputs of the node are set accordingly.
Pos : 75.18 /D okumentati on allgemei n/Gli ederungsel emente/---Seitenwec hs el--- @ 3\mod_1221108045078_0.doc x @ 21810 @ @ 1
Manual
Version 2.0.0
value (bit-oriented)
Digital Output Modules
0
1
0 or 1
Response determine by the I/O module.
Diagnostics
value (byte-oriented)
Analog Output Modules
0 mA or 4 mA, 0 V
20 mA, 10 V
0/4 mA ... 20 mA,
-10 V ... +10 V
125