Page 225 - Programmable Logic Controllers, Fifth Edition - Mobile version

Inputs Ladder logic program Outputs
Main program file 2
S1 PL1 L2
L1
1
PL1
S1
S2 JSR
S2 2 JUMP-TO-SUBROUTINE PL2
SBR file number U:3
S3 S3 20
3 JMP PL3
S4
S4 PL6
4 PL4
S5
S9 20
S6 5 JMP
PL5
S8 PL2
S7
6
PL6
S8 S10 20
7 JMP
S9
S11
PL4
8
S10
RTO
20 S7 RETENTIVE TIMER ON EN
S11 Timer T4:3
9 LBL Time base (sec) 1.0 DN
Preset 50
S12 Accumulated 0
T4:3/DN
T4:3
S13 10 RES
Subroutine file 3
S13 PL3
SBR
11 SUBROUTINE

S12 12
12 JMP

S5 PL5
13

12 S6 TON
14 LBL TIMER ON DELAY EN
Timer T4:6
Time base 1.0
Preset 5 DN
Accumulated 0
RET
15 RETURN

Figure 9-32 Program for Problem 4.

206 Chapter 9 Program Control Instructions

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