HBM MP85A - Page 131

FAQs: Frequently asked questions (MP85A and PME Assistant)
MP85A A0293_06_E00_03 HBM: public 131
Start/stop via conditions, end via external signal
Start and stop the process by means of various conditions, e.g. start when a
value exceeds the reference value, stop when a value is below the reference
value. The end is determined by an external signal (digital inputs).
Flow diagram e) for start/stop/end conditions
Ready
Start
Stop
Ready signal
may be issued
Stop condition
Start condition
End
Start with (internal) condition, stop with (internal) condition,
end with external signal
Ext. signal
Notes
S The process is halted immediately without waiting for your stop condition
when the external signal goes to “End”, you click on or the relevant
interface command arrives.
Only level changes (edges) of the external signal are analyzed.
S The conditions are only analyzed when a value has already dropped below
the reference value plus hysteresis or risen above the reference value
minus hysteresis once. The hysteresis is 1% of the range window for the