Operating Instructions
Chapter
3
UE4155
8010178/TF82/2010-03-05
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
19
Subject to change without notice
Product description
The electrical connection to the field-signal connections is described in chapter 5.3 “Field-
signal connections M12 × 5 + FE” of this document on page 30. Examples can be found in
chapter 6 “Examples of circuits” on page 33.
Routing
When configuring the outputs of a field-signal connection as an output signal, you must
establish the source of these signals in the bus node. This setting is called
Routing
.
SICK offers special function packages for the bus nodes in connection with SICK safety
components on the SDL connection. With the appropriate function package, you can …
route field signals to a particular signal bit of a device on the SDL connection, i.e. to a
connected ESPE.
pick up a signal bit from a device on one of the SDL connections and place it on an
output signal, e.g. the
Reset required
signal bit of an ESPE.
If you route the input of a field-signal connection directly onto the signal bit of an SDL
connection, the FPLC can no longer modify this signal bit of the SDL connection.
The operating instructions of the function package contain information about the signal
bits of the corresponding device that can be routed.
Test-signal allocation
In the case of test signals, you must establish which bus-node input is to expect the test
signals when the device is operating. You will usually use the input of the same channel.
However, you can also use the input of a different field-signal connection (e.g. when con-
necting a operating mode selector switch with more than two settings).
3.5.2
Two-channel selection of the field-signal connections
In the case of two-channel selection, both input and output channels A and B of the field-
signal connection are interdependent. Possible selections:
equivalent: switching contacts with the same states
complementary: switching contacts with different states (cf. Tab. 5).
In the case of the two-channel selection, the bus node transfers the result of the evalu-
ation of both inputs in the status bit of input A.
If the input signal changes from the
active
status into a different one, for safety reasons
the bus node immediately switches the corresponding input in the process image to 0
(cf. Tab. 5).
Note
Notes