IAI XSEL - Chapter 5 Pseudo-Ladder Task; Basic Frame; Ladder Statement Field

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Part 4 Commands Chapter 5 Pseudo-Ladder Task.
Part 4 Commands
Chapter 5 Pseudo-Ladder Task
With the XSEL Controller, a pseudo-ladder task function can be used depending on the command and
extension condition.
The input format is shown below. Note that this function must be used by expert engineers with a full knowledge
of PLC software design.
1. Basic Frame
Extension condition Input condition Command Operand 1 Operand 2 Output
E
N
Cnd Cmnd Pst
LD 7001 CHPR 1
TPCD 1
TAG 1
llll
llll
llll
llll
llll
llll
LD 7001 TSLP 1 to 100
llll
llll
llll
llll
llll
llll
LD 7001 TSLP 1 to 100
LD 7001 GOTO 1
LD 7001 EXIT
* * Virtual input 7001: “Normally ON” contact
Ladder
statement
field
Ladder
statement
field