2 ladder statement field, 3 points to note – IAI America TT-C3 User Manual
Page 255
245
INTELLIGENT ACTUATOR
Chapter 4 Commands
5.
Pseudo
Ladder
T
ask
5.2
Ladder Statement Field
[1] Extension conditions
LD
LOAD
A
AND
O
OR
AB
AND
BLOCK
OB
OR
BLOCK
All of the above extension conditions can be used in non-ladder tasks.
[2] Ladder commands
OUTR
Ladder output relay (Operand 1 = Output, flag number)
TIMR
Ladder timer relay (Operand 1 = Local flag number, Operand 2 =
Timer setting (sec))
5.3
Points to Note
x This system only processes software ladders using an interpreter. Therefore, the processing time is much
longer than that of a dedicated commercial sequencer.
(This system is not suitable for large-scale ladder processing.)
x If an extension condition is not specified for steps in which an input condition is specified, the steps will be
treated as LD (LOAD).
x Always specify a “normally ON” contact for those steps that must be processed without fail, such as CHPR,
TSLP and GOTO. (LD 7001)
Virtual input 7001: “Normally ON” contact
x The following circuit cannot be expressed. Create an equivalent circuit.
Cannot be expressed.