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 02 129
4.3.6 System devices

System devices are internal variables which the user can use to access intermediate results.

During the calculation timespan (cycle time of the bus system), their values are constant. They

are processed before the configured device is calculated, i.e. they contain the values from the

previous calculation.

Note

Within a configuration, system devices can only be used as auxiliary variables for the logical

linking of states in the logic devices.

System device Icon Index Description
TRUE 1 = static on State always ON
FALSE 17 = static off State always OFF
State of output switching
element 1
2 =main output one State of the output switching element of OSSD 1
Negated state of output
switching element 1
18 =n ot main output one Negated state of the output switching element of
OSSD1
State of output switching
element 2
3 = main output two State of the output switching element of OSSD2
Negated state of output
switching element 2
19 =n ot main output two Negated state of output switching element of
OSSD2
State of message output1 4 = notify output one State of the message output of OSSD 1
Negated state of message
output 1
20 =n ot notify output one Negated state of the message output of OSSD 1
State of message output2 5 = notify output two State of the message output of OSSD2
Negated state of message
output 2
21 =n ot notify output two Negated state of the message output of OSSD 2
State of OSSD1 6 = devices started one Result of the OR link of all start devices of OSSD1
Negated state of OSSD1 22 = not devices started one Negated result of the OR link of all start devices of
OSSD1
State of OSSD2 7 = devices started two Result of the OR link of all start devices of OSSD 2
Negated state of OSSD2 23 = not devices started two Negated result of the OR link of all start devices of
OSSD2
State of devices before
start1
8 =de v before start one Result of the AND link of the states of all monito-
ring, logic and EDM devices of OSSD 1
Negated state of devices
before start1
24 =n ot dev before start one Negated result of the AND link of the states of all
monitoring, logic and EDM devices of OSSD1
State of devices before
start2
9 =de v before start two Result of the AND link of the states of all monito-
ring, logic and EDM devices of OSSD 2
Negated state of devices
before start2
25 =n ot dev before start two Negated result of the AND link of the states of all
monitoring, logic and EDM devices of OSSD2