Dr Area; Tc (Timer/Counter) Area - Omron SYSMAC mini SP10 Operation Manual

Memory Areas
Data Link Communication
Example
PC #0
PC #1
PC #2
PC #3
3-2-6

DR Area

3-2-7

TC (Timer/Counter) Area

36
PC #0
LR 00
PC #0
LR 01
LR 02
PC #1
LR 03
LR 04
PC #2
LR 05
LR 06
PC #3
LR 07
DR 00
through
DR 07
Write area
The following ladder diagrams illustrate an example of communications be-
tween linked PCs.
ON
LR 0000
LR 0000
LR 0000
When LR 0000 of PC #0 is turned ON, LR 0000 of PC #1, #2 and #3 are also
turned ON (OFF). LR 00 is the write area of PC #0, i.e., LR 00 of PC #1, #2
and #3 are used to read data written by PC #0.
The DR area is used for data storage and manipulation. All data that is to be
preserved for power interruptions, must be placed in this area. The size of
the DR area depends on the size designated for the LR area (see 3-2-5 LR
Area for details).
The TC area is used to create and program timers and counters and holds
the Completion Flags, set values (SV), and present values (PV) for all timers
PC #1 PC #2
PC #0 PC #0
PC #1 PC #1
PC #2 PC #2
PC #3 PC #3
DR 00 DR 00
through through
DR 07 DR 07
Read area
LR 0000
0100
0200
0102
Section 3-2
PC #3
PC #0
PC #1
PC #2
PC #3
DR 00
through
DR 07
ON
ON
OFF
ON