195
Flags 25407: Step Start Flag; turns ON for one cycle when STEP(08) is executed
and can be used to reset counters in steps as shown below if neces-
sary.
SNXT(09) 01000
CP
R
CNT 01
#0003
00000
00100
25407
STEP(08) 01000
1 Cycle
25407
01000
Start
Address Instruction Operands Address Instruction Operands
00000 LD 00000
00001 SNXT(09) 01000
00002 STEP(08) 01000
00003 LD 00100
00004 LD 25407
00005 CNT 01
# 0003
Examples
The following three examples demonstrate the three types of execution con-
trol possible with step programming. Example 1 demonstrates sequential
execution; example 2, branching execution; and example 3, parallel execu-
tion.
The following process requires that three processes, loading, part installa-
tion, and inspection/discharge, be executed in sequence with each process
being reset before continuing on the the next process. Various sensors
(SW1, SW2, SW3, and SW4) are positioned to signal when processes are to
start and end.
SW 1
SW 2
SW 3
SW 4
Loading Part installation Inspection/discharge
Example 1:
Sequential Execution
Step Instructions Section 5-21
To Next Page
Loading...
