Auxiliary Area - Omron SYSMAC CS1D-PD Series Operation Manual

Auxiliary Area

8-11 Auxiliary Area

Forcing Bit Status
Writing Auxiliary Area Data
Functions
284
There are no restrictions in the order of using bit address or in the number of
N.C. or N.O. conditions that can be programmed.
The Auxiliary Area contains 960 words with addresses ranging from A000 to
A959). These words are preassigned as flags and control bits to monitor and
control operation.
Some words and bits in the Auxiliary area are controlled by the system, others
can be set by the program or from a Programming Device. The Auxiliary Area
includes error flags, initialization flags, control bits, and monitoring data.
Bits in the Auxiliary Area cannot be force-set and force-reset continuously.
The following operations can be performed from a Programming Device to
write data in the Auxiliary Area.
• Using the CX-Programmer:
Online set/reset (not force-set/force-reset, see note), changing present
values when monitoring programming addresses (set values dialog box),
or transferring data to the PLC after editing the PLC data tables.
Refer to the CX-Programmer User Manual.
• Using a Programming Console:
Temporarily force-setting/force-resetting bits from the Bit/Word Monitor or
the 3-word Monitor operation (see Programming Consoles Operation
Manual).
Note Online set/reset operations are supported for Duplex CPU Systems by CX-
Programmer version 3.0 or higher and for Single CPU Systems by CX-Pro-
grammer version 4.0 or higher.
The following table lists the functions of Auxiliary Area flags and control bits.
The table is organized according to the functions of the flags and bits. For
more details or to look up a bit by its address, refer to Appendix B Auxiliary
Area.
Input
Unit
Section 8-11
Set input
Reset input