Configuring the AS-Interface safety monitor
4.3 Creating and changing a configuration
ASIMON V3 - Configuration software for AS-Interface safety monitor
98 Programming and Operating Manual, Edition 09/2008, GWA 4NEB 333 1558 02 DS 02
Description
The external device monitoring circuit with standard slave for the second, dependent OSSD is
functionally identical with a normal external device monitoring circuit for the second, dependent
OSSD.
As long as the safety outputs are switched off, the standard/A/B slave must be in the state
active = ON. After the safe outputs have been switched on (validation), the state of the stan-
dard/A/B slave is not relevant for set switching time. Afterward, the standard/A/B slave must
be in the inactive = OFF state again. The state of the contactor monitor is active = ON
(switched on).
After the safe outputs have been switched off, the state of the contactor monitor returns to
inactive = OFF (switched off) and the state of the standard/A/B slave is not queried for the set
switching time. Afterward, the standard/A/B slave must be in the state active = ON again.
Contactor monitoring prevents the monitor from being switched back on for the duration of the
set switching time after it is switched off. This should allow all downstream contactors to reach
the idle state before contactor monitoring again queries the input signal, thereby preventing an
error lock.
Configuration log
Example: Error lock
0039 INDEX: 35 = "Name"
0040 TYPE: 63 = external device monitor channel two standard slave
0041 SUBTYPE: none
0042 ASSIGNED: channel one
0043 ADDRESS: 10 BIT: In-0 noninv
0044 OFF TIME: 0.100 Sec
9
0
1
2
3
4
Example: Limited error lock
0039 INDEX: 35 = "Name"
0040 TYPE: 63 = external device monitor channel two standard slave
0041 SUBTYPE: limited error lock
0042 ASSIGNED: channel one
0043 ADDRESS: 10 BIT: In-0 noninv
0044 OFF TIME: 0.100 Sec
9
0
1
2
3
4