Revised Specifications - Omron CPM1A Operation Manual

Revised Specifications

7

Revised Specifications

Item
Input indicator operation
when an error occurs
Memory holding operation
of built-in capacitor
Manufacturer: Fair Rite Products Corp.
The following table shows the changes that have been made in product specifi-
cations beginning with lots produced in January 1998 (December 1997 for some
models).
Previous specifications
The input indicators will
maintain the current status
and will not change with the
status of the input signal
when a memory error, no
END instruction error, or
system error occurs.
If the power remains OFF
for a period exceeding the
data backup period, the
capacitor will not be able to
back up data and the
status of the data backed
up by the capacitor
(Read/write DM area, Error
log area, HR area, and
Counter area) will become
unstable.
New specifications
The input indicators will
change with the status of
the input signal when a
memory error, no END
instruction error, or system
error occurs.
If the power remains OFF
for a period exceeding the
data backup period,
AR 1314 will turn ON to
indicate that the capacitor
can no longer back up data
and the data backed up by
the capacitor (Read/write
DM area, Error log area,
HR area, and Counter
area) will be cleared. The
PC Setup setting in
DM 6604 can be set to
create a fatal error and thus
stop the system when
AR 1314 goes ON.
Relevant pages
Item 8., Input Indicators, on
page 33.
Pages xviii to xx under 5
Application Precautions.
Page 24 under 2-1-2
Characteristics.
See also information on the
PC Setup in the
CPM1/CPM1A/CPM2A/CPM2
C/SRM1(-V2) Programmable
Controllers Programming
Manual (W353).
xxiii
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