ABB AC500-S Safety User Manual page 256

Configuration and programming
AC500-S libraries > SafetyBlocks_PLCopen_AC500_v22.lib
Example for 1
SF_MutingPar in
forward direc-
tion with four
sensors
If the muting sensors MutingSwitch11 (MS_11) and MutingSwitch12 (MS_12) are activated by
the product within the time DiscTime11_12, muting mode is activated (S_MutingActive = TRUE).
2
Muting mode remains active as long as MutingSwitch11 (MS_11) and MutingSwitch12 (MS_12)
are activated by the product. The product may pass through the light curtain without causing a
machine stop.
3
Before muting sensors MutingSwitch11 (MS_11) and MutingSwitch12 (MS_12) are disabled,
muting sensors MutingSwitch21 (MS_21) and MutingSwitch22 (MS_22) must be activated. This
ensures that muting mode remains active. The time discrepancy between switching of MutingS-
witch21 and MutingSwitch22 is monitored by the time DiscTime21_22.
4
Muting mode is terminated if either muting sensor MutingSwitch21 (MS_21) or MutingSwitch22
(MS_22) is disabled by the product. The maximum time for muting mode to be active is the
MaxMutingTime.
Muting condi- Forward direction
tions
Muting condition 1 (to state 8011) (MS_11 is the first actuated entry switch). Start timers
MaxMutingTime and DiscTime11_12:
MutingEnable AND (R_TRIG at MS_11 AND NOT MS_12 AND NOT MS_21 AND NOT MS_22)
Muting condition 1 (to state 8311) (MS_12 is the first actuated entry switch). Start timers
MaxMutingTime and DiscTime11_12:
MutingEnable AND (NOT MS_11 AND R_TRIG at MS_12 AND NOT MS_21 AND NOT MS_22)
256
Transmitter
MS_11
MS_12
Receiver
Transmitter
MS_11
MS_12
Receiver
Transmitter
MS_11
MS_12
Receiver
Transmitter
MS_11
MS_12
Receiver
3ADR025091M0208, 12, en_US
Danger
MS_21
zone
MS_22
Danger
MS_21
zone
MS_22
Danger
MS_21
zone
MS_22
Danger
MS_21
zone
MS_22
2020/06/19