System Variables For Sinumerik 840D Sl - Siemens SINUMERIK 840D sl Function Manual

Connecting sensors and actuators
8.5 Safe programmable logic
END_VAR
VAR_OUTPUT
END_VAR
VAR_INOUT
END_VAR
The following table shows all formal parameters of the SI relay function:
In1
In2
In3
Ackn1
Ackn2
TimeValue1
TimeValue2
TimeValue3
Out0
Out1
Out2
Out3
FirstRun
The parameter FirstRun must be switched to the value TRUE using a retentive data (memory
bit, bit in data block) on the first run after the control has booted. This data can be preset, e.g.
in OB100. The parameter is reset to FALSE when FB10 is executed for the first time. Separate
data must be used for parameter FirstRun for each call with separate instance.
Note
The block must be called once by the user program (per SI relay) cyclically in the OB1 cycle
from when the SPL program starts. The user must provide an instance DB with any number
for this purpose. The call is multi-instance-capable.
8.5.9

System variables for SINUMERIK 840D sl

The following system variables can only be used in combination with SINUMERIK Safety
Integrated. They are used when programming the safe programmable logic (SPL).
282
Out0 : BOOL;
Out1 : BOOL;
Out2 : BOOL;
Out3 : BOOL;
FirstRun: BOOL;
Signal Input or output
// Output without delay
// Delayed output to false by timer 1
// Delayed output to false by timer 2
// Delayed output to false by timer 3
// True by user after 1st start of SPL
Type
E BOOL
E BOOL
E BOOL
E BOOL
E BOOL
E TIME
E TIME
E TIME
A BOOL
A BOOL
A BOOL
A BOOL
E/A BOOL
Remark
Input 1
Input 2
Input 3
Acknowledgment input 1
Acknowledgment input 2
Time value 1 for switch-off delay
Time value 2 for switch-off delay
Time value 3 for switch-off delay
Output, instantaneous (no delay)
Output, delayed by TimeValue1
Output, delayed by TimeValue2
Output, delayed by TimeValue3
Activation of basic setting
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated