Appendix 53/56
3 842 558 372/2021-10, MIT: EL 2,
Bosch Rexroth AG
Characters are used in the action blocks that deviate from DIN IEC 61131--3.
They are explained in the following table.
Simple VE 2 stop gates are used to stop the workpiece pallets. The position of
the workpiece pallets is determined using separate proximity switches.
Action block
Explanation
S
Storing
NS
Non-storing
S
Set
R
Reset
T3
T3
?
NS
D
S
S Y2.1
Non-storing triggering of a time function (with runtime T),
after which a switching function is triggered.
General abbreviations
WT
=
Workpiece pallet
VE
=
Stop gate
S … =
Signal transmitter
Y …
=
Valve
Z … =
Cylinder
LT
=
Longitudinal conveyor (main section)
QT
=
Transverse conveyor (secondary section)
=
Start pulse after end of start-up
=
Enable cyclic travel
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