Safety Diagnostics In The Input Data Image (Idi); Representation Of The Diagnostic Information - Pepperl+Fuchs VBG-PN-K30-DMD-S16-EV Manual

AS-i 3.0 PROFINET Gateway with integr. Safety Monitor
Appendix, Examples
19.2

Safety diagnostics in the input data image (IDI)

Information!
This functionality is available only in certain models. For additional information see sec-
tion <Diagnostic values in the IDI>.
19.2.1

Representation of the diagnostic information

Diagnostics in the IDI is a way to get the most important diagnostics information
into the controller without using a command interface (mailbox) and without addi-
tional effort. The diagnostics information is sent in the input data image, encoded
to the input bits of the safety input slave address.
Bits 0 and 1 represent the switching state of Channels 1 and 2 of the safety input,
thereby making the state directly accessible very quickly.
Bit 3 Bit 2
X X
X X
X X
X X
Bits 2 and 3 contain the state of the safety input (the device color of the ASIMON):
Bit 3 Bit 2
0 0
0 1
1 0
1 1
Attention!
Note the following points when performing an evaluation:
• The information for switching state and error status are not processed syn-
chronously
• When there is a configuration error all bits having a value of 0 are sent; this
must be noted when evaluating the data.
• When the monitor is stopped the device color is "gray".
• The state "yellow flashing" can be recognized as a transition state with regu-
lar switching. This depends on the set module type. This state should be
understood as a test request only if it is stably reported.
Bit 1 Bit 0 Description
0 0 Both channels open
0 1
nd
2 channel open, 1
1 0
nd
2 channel closed, 1
1 1 Both channels closed
Bit 1 Bit 0 Description
X X Device color: red, green or gray
X X Device color: yellow ("wait")
X X Device color: yellow flashing ("test")
X X Device color: red flashing ("error")
st
channel closed
st
channel open
Tab. 19-40.
Tab. 19-41.
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