SmartPLC SafeLine with PROFIBUS slave interface
31
5.3
Connect devices to local I/O interface
Content
Supported connection types ................................................................................................................ 31
Supported device types ....................................................................................................................... 32
Connect sensors / actuators ................................................................................................................ 43
42211
► Only connect devices that are supported by the AC412S (→
Supported device types
(
► To obtain a certain safety integrity level to EN ISO 13849 or performance level to EN
62061, observe the max. obtainable SIL / cat. /PL values when devices are installed on
the local I/O interface.
>
5.3.1
Supported connection types
42285
The local I/O interface of AC412S supports the connection of safe and non-safe devices. The following
connection methods are possible:
Connection method
Description
Input, 1 channel, non-safe
corresponds to a standard input
The input value is read in the safe application by means of an FB.
Input, 2 channels, safe
is composed of 2 standard inputs
The 2 logical input signals are monitored by means of a logical device and linked
with a safe process signal.
The safe process signal can be used in the safe application.
Input, 2 channels with test pulse, safe
is composed of 2 standard inputs
The 2 logical input signals are monitored by means of a logical device and linked
with a safe process signal.
To detect cross-bridging the input signals are also checked for the presence of a
test pulse.
The safe process signal can be used in the safe application.
Output, 1 channel, non-safe
corresponds to a standard output
The output value is generated in the safe application by means of an FB.
Output, 1 channel, safe
A safe process signal is provided on 1 output without additional monitoring.
Output, 2 channels, safe
A safe process signal is provided on 2 outputs without additional monitoring