Omron CJ2 CPU UNIT SOFTWARE User Manual

6-7
6 I/O Memory Areas
CJ2 CPU Unit Software User’s Manual
6-1 I/O Memory Areas
6
6-1-3 Holding I/O Memory Values
z I/O Memory Hold Status According to I/O Memory Area
The following table gives the hold status for each I/O memory area.
*1 This area is supported only by CJ2H CPU Units.
*2 Turn ON the IOM Hold Bit (A500.12) in the Auxiliary Area to hold these areas.
*3 Turn ON the IOM Hold Bit in the Auxiliary Area (A500.12) and select the IOM Hold Bit Check Box in the Startup Hold Area
on the Startup Tab Page in the PLC Setup.
*4 This area is supported only by CJ2M CPU Units.
Area
CPU Unit operat-
ing mode
changes
Fatal errors
Power supply
turned ON
FALS(007) exe-
cuted
Other fatal errors
CIO Area
(Core I/O Area)
I/O Area
Possible to hold
*2
(Depends on set-
tings.)
Held
Possible to hold
*2
(Depends on set-
tings.)
Possible to hold
*3
(Depends on set-
tings.)
Data Link Area
Synchronous Data
Refresh Area
*1
CPU Bus Unit
Area
Special I/O Unit
Area
Pulse I/O Area
*4
Serial PLC Link
Area
*4
DeviceNet Area
Internal I/O Area
Work Area (W)
Possible to hold
*2
(Depends on set-
tings.)
Held
Possible to hold
*2
(Depends on set-
tings.)
Possible to hold
*3
(Depends on set-
tings.)
Holding Area (H) Held
Auxiliary Area (A) Held or cleared depending on the address.
Data Memory Area (D) Held
Extended Data Memory Area (E) Held
Timer Completion Flags (T)
Possible to hold
*2
(Depends on set-
tings.)
Held
Possible to hold
*2
(Depends on set-
tings.)
Possible to hold
*3
(Depends on set-
tings.)
Timer PVs (T)
Possible to hold
*2
(Depends on set-
tings.)
Held
Possible to hold
*2
(Depends on set-
tings.)
Possible to hold
*3
(Depends on set-
tings.)
Counter Completion Flags (C) Held
Counter PVs (C) Held
Task Flag Area (TK) Cleared Held Cleared Cleared
Index Registers (IR) Cleared Held Cleared Cleared
Data Registers (DR) Cleared Held Cleared Cleared

Omron CJ2 CPU UNIT SOFTWARE Specifications

General

Brand	Omron
Model	CJ2 CPU UNIT SOFTWARE
Category	Software
Language	English