Chapter - PLC Memory

1
Chapter - PLC Memory
PLC-5 MicroLogix
2
PLC-5 Data Memory Files
Locations in Files
3
Some Memory Types
4
Addressing Bits, Integers and Structures
Separated with '.'
Literal Data Values
Addressing Files (Arrays)?
Expressions
5
Function Examples
6
Timer Memory
EN - timer enabled bit TT - timer timing bit DN -
timer done bit FS - timer first scan LS - timer
last scan OV - timer value overflowed ER - timer
error PRE - preset word ACC - accumulated time
word
Counter Memory
CU - count up bit CD - count down bit DN -
counter done bit OV - overflow bit UN - underflow
bit PRE - preset word ACC - accumulated count word
7
(No Transcript)
8
Status Bits
9
(No Transcript)
10
Control Memory