AutomationDirect DL105, User Manual

Page: 165 / 350

Standard
RLL
Instructions
5--5
Standard RLL Instructions
Boolean Instructions
DL105 PLC User Manual, 3rd Edition
You also have to join contacts in parallel. The OR instruction allows you to do this.
The following example shows two contacts in parallel and a single output coil. The
instructions would be STR X0, OR X1, followed by OUT Y0.
OUT
Y0 X0
END
X1
Direct SOFT Example Handheld Mnemonics
STR X0
OR X1
OUT Y0
END
Quite often it is necessary to join several groups of series elements in parallel. The
Or Store (ORSTR) instruction allows this operation. The following example shows a
simple network consisting of series elements joined in parallel.
OUT
Y0 X0
END
X2
X1
X3
Direct SOFT Example Handheld Mnemonics
STR X0
AND X1
STR X2
AND X3
ORSTR
OUT Y0
END
You can also join one or more parallel branches in series. The And Store (ANDSTR)
instruction allows this operation. The following example shows a simple network
with contact branches in series with parallel contacts.
OUT
Y0 X0
END
X1
X2
Direct SOFT Example Handheld Mnemonics
STR X0
STR X1
OR X2
ANDSTR
OUT Y0
END
Parallel Elements
Joining Series
Branches in
Parallel
Joining Parallel
Branches in Series