BBH SCU Series, Installation Manual

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9
Reaction time
HB-37500-810-11-16F-EN SCU Installation Manual - Master and Slaves - SARC Page 77 of 303
Status: 09.06.2022
Function
Reaction
time [ms]
Explanation
Typical
Worst
-case
Reaction of an already
activated
monitoring
function including PLC edit
in case of position processing
and speed processing via
digital output
21 2) 39
If the monitoring function that has
already been activated by ENABLE, the
block needs one cycle to calculate the
current speed value. In the next cycle,
after the monitoring function has been
calculated, the information is
processed and edited via the PLC. That
means, according to the implemented
logic this leads e. g. to the switching
of one output.
Reaction of an already
activated
monitoring
function including PLC edit
in case of postion processing
and speed processing via
digital output.
39 2) 62 2)
If the monitoring function that has
already been activated by ENABLE, the
block needs one cycle to calculate the
current speed value. In the next cycle,
after the monitoring function has been
calculated, the information is
processed and edited via the PLC. That
means, according to the implemented
logic this leads e. g. to the switching
of one output.
Calculation SARC 16 16 Calculation of SARC blocks within a cycle.
Use virtual axes for monitoring
functions
32 32
Calculation virtual axes and provide for use
in the monitoring functions
Error reaction time SARC 32 32 Error reaction time for SARC calculations
Table 1: reaction time
NOTICE

1): Applies to EL1904, EL2904 and SSM

2): If a mean value filter is used, its reaction period must be added.