Configuring the AS-Interface safety monitor
4.3 Creating and changing a configuration
ASIMON V3 - Configuration software for AS-Interface safety monitor
Programming and Operating Manual, Edition 09/2008, GWA 4NEB 333 1558 02 DS 02 65
Description
With the double channel independent monitoring device, the two switching signals of the re-
spective safe AS-Interface slave each act on 2 bits of the transmission sequence. In this case,
it is only necessary that both switching signals arrive. There is no synchronisation time.
Optionally, a startup test and/or a local acknowledgement are/is possible. Upon activation of
the Also acknowledge after startup checkbox, local acknowledgement is always mandatory
even after switching on the AS-Interface safety monitor or following a communication error
(warm start of the AS-Interface safety monitor).
Application icons
Emergency shutdown
Safety guard
Module - used to connect conventional safe switching elements via a safe
AS-Interface module.
Enabling switch
Key switch
Configuration log
Note
If the startup test option is selected, both switches must be open at all times during the test.
Moreover, a startup test must be performed following the reset of an error condition.
Caution
Double channel independent monitoring devices offer only limited safety, as they cannot be
checked for simultaneousness. Check carefully to ensure that the use of a double channel in-
dependent monitoring device fulfils the requirements of the desired safety category.
Example: With startup test
0020 INDEX: 32 = "Name"
0021 TYPE: 22 = double channel independent safety input
0022 SUBTYPE: startup test
0023 SUBTYPE: no local acknowledge
0024 ASSIGNED: both channels
0025 SAFE SLAVE: 1
0
1
2
3
4
5
Example: With local acknowledgement also after startup
0027 INDEX: 33 = "Name"
0028 TYPE: 22 = double channel independent safety input
0029 SUBTYPE: no startup test
0030 SUBTYPE: local acknowledge always ADDRESS: 10 BIT: In-0 noninv
0031 ASSIGNED: channel one
0032 SAFE SLAVE: 2
7
8
9
0
1
2