Programmer (HHP) User guide

Chapter 13
Using Application Specific Instructions
13–19
Entering the Instruction
You enter the instructions from within the program monitor functional area.
The following items apply when entering the instructions:
• Whenever you see asterisks on the display, the HHP is waiting for data
entry (i.e., a number).
• You can return to previously entered operands by pressing this key:
Then if you want to edit that operand, press DEL or FUN-DEL and enter
new parameters. Press
ENT to accept the operand and move on to the next
one. Once the entire instruction is entered, if you want to edit the
instruction’s parameters you must go into the overwrite mode. (See page
17–4.)
P
0 0 9 S T S F I L E
5
P
0 0 9 S T S T I M E
1 4 0
This instruction serves as a label or identifier of a program file as an interrupt
subroutine (INT label) versus a regular subroutine (SBR label).
This instruction has no control bits and is always evaluated as true. Use of
this instruction is optional; however, we recommend using it.
Important: The instruction must be programmed as the first instruction of
the first rung of a subroutine. (Since it must be the first
instruction on the rung, the INT instruction is also known as
LD INT.)
Entering the Instruction
You enter the instruction from within the program monitor functional area.
P
0 0 9 I N T
7
ENT
5
1
FUN
To enter the function code, press:
INTERRUPT SUBROUTINE
INT
Execution Times (µ
sec) when:
True False
1.45 0.99
Ladder representation:
Int
e
rrupt
Subroutin
e (
I
N
T
)
8
ENT
5
1
FUN
To enter the function code, press: