Programmer (HHP) User guide

Chapter 1 1
Using Data Handling Instructions
11–25
FFL and FFU instructions are used in pairs. The FFL instruction loads words
into a user-created file called a FIFO stack. The FFU instruction unloads
words from the FIFO stack in the same order as they were entered.
Entering the Instructions
You enter the instruction from within the program monitor functional area.
While entering the FFL instruction, you see these screens:
P
0 0 0 F F L S R C
N 1 0
P
0 0 0 F F L F I F O
# N 1 2
P
0 0 0 F F L C T R L
R 0
P
0 0 0 F F L L E N
* * * * 3 4
P
0 0 0 F F L P O S
* * * * * 9
FIFO Load (FFL) and
FIFO Unload (FFU)
(EM)
(EN)
(DN)
(EM)
FFL
FIFO LOAD
Source N7:10
FIFO #N7:12
Control R6:0
Length 34
Position 9
(EU)
FFU
FIFO UNLOAD
FIFO #N7:12
Dest N7:11
Control R6:0
Length 34
Position 9
(DN)
73.78+4.34 x
position value
False
True
33.67FFL
34.90FFU
61.13
Execution Times (µ sec) when:
Ladder representation:
3
U
To enter the function code, press:
ENT
1
FUN
1