Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 234)

Chapter 13
Using Application Specific Instructions
13–8
The done bit is set when the last word of the sequencer file is transferred. On
the next false-to-true rung transition, the instruction resets the position to step
one.
If the position is equal to zero at startup, when you switch the controller from
the RPRG mode to the RRUN mode, instruction operation depends on
whether the rung is true or false on the first scan.
•
If true, the instruction transfers the value in step zero.
•
If false, the instruction waits for the first rung transition from false-to-true
and transfers the value in step one.
The bits mask data when reset and pass data when set. The instruction will
not change the value in the destination word unless you set mask bits.
The mask can be fixed or variable. It will be fixed if you enter a
hexadecimal code. It will be variable if you enter an element address or a
file address for changing the mask with each step.
Entering the Instruction
You enter the instruction from within the program monitor functional area.
P 0 1 4 S Q O F I L E
# B 1
P 0 1 4 S Q O M A S K
0 F 0 F H
P 0 1 4 S Q O D E S T
O 0
P 0 1 4 S Q O C T R L
R 5
P 0 1 4 S Q O L E N
* * * * * 4
P 0 1 4 S Q O P O S
* * * * * 2
2
L
To enter the function code, press:
ENT
5 1
FUN