Logic Gating Functions: Source And Reaction Linking; Activation - Siemens SINUMERIK 840D sl Function Manual

R3: Extended stop and retract
9.2 Control-managed ESR - 840D sl only
Axial trigger sources
● $VA_SYNCDIFF[<following axis>] (synchronism difference, on the actual value side)
● $AA_ESR_STAT (axial return signal word: ESR status)
Alarm responses
When ESR is active, the alarm responses NOREADY and STOPBYALARM are delayed by
one IPO cycle. The self-clearing alarm is displayed to indicate this delay:
Alarm 21600 "Monitoring for ESR active".
Note
The display of this alarm can be suppressed by:
MD11410 $MN_SUPPRESS_ALARM_MASK, bit16 = 1
9.2.7

Logic gating functions: Source and reaction linking

The flexible logic operation possibilities of the static synchronized actions can be used to trigger
specific reactions based on sources. Linking all relevant sources using static synchronized
actions is the responsibility of the user/machine manufacturer. They can selectively evaluate
the source system variables as a whole or by means of bit masks, and then make a logic
operation with their desired reactions. The static synchronous actions are effective in all
operating modes. A detailed description of how to use synchronous actions can be found in:
References:
● Function Manual, Synchronized Actions
● Programming Manual Work Preparation (Synchronized Actions, System Variables)
Linking of axial sources with global or channel specific sources can be configured variably with
the aid of $AA_TYP (axis type).
9.2.8

Activation

Option
The function "Extended stop and retract" is an option.
Axis-specific function enable ($AA_ESR_ENABLE)
The axis-specific function enable is realized using the system variable:
$AA_ESR_ENABLE[<axis>] = 1
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Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions