Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 218)

Programming Techniques
Chapter 18
18-10
Task 2: Lists Your Devices
Input Devices
The input devices and their abbreviations are:
Input Device Abbreviation Comment
Photocell
Fill tube extended
FIll TUbe retracted
Automated
Timer
PC
LS1
LS2
Auto
Timer
Bottle in Place
Limit Switch
Limit Switch
Type of Operation
3 Seconds
Output Devices
The output devices and their abbreviations are:
Output Device Abbreviation Comment
Conveyor motor
Conveyor motion forward
Fill tube motor
Fill tube forward
Fill tube filling
Fill tube reverse
Solenoid
CM
CMF
FTM
FTF
FTS
FTR
SOL
Initializing motion
Fluid starts to flow
Moves the bottles off the conveyor
Task 3: Completing Your Worksheets
Figure 18.9 and Figure 18.10 illustrate completed sequencer worksheets.
Notice that the first step of the sequencer output is the last step of your
operation. Table 18.A describes each step. To aid you in understanding
this documentation concept, read table 18.A while looking at each figure.