6-10-2 Alarms Occurring At The Analog I/O Unit - Omron CS1W-AD041-V1 Operation Manual

Handling Errors and Alarms

6-10-2 Alarms Occurring at the Analog I/O Unit

Bit
Word n+9
ERC and RUN Indicators: Lit
Word n + 9 Alarm flag
Bits 00 to 03 Output Set
Value Error
Bits 04 to 07 Disconnection
Detection
Bit 14 (Adjustment
mode)
EEPROM Writ-
ing Error
282
When an alarm occurs at the Analog I/O Unit, the ERC indicator lights and the
Alarm Flags are stored in bits 08 to 15 of CIO word n+9.
15 14 13 12 11 10
Alarm Flags
The ERC and RUN indicators will be lit when an error occurs while the Unit is
operating normally. The following alarm flags will turn ON in CIO word n+9.
These alarm flags will turn OFF automatically when the error is cleared.
Error contents
The output setting range has
been exceeded.
A disconnection was detected.
(See note.)
An EEPROM writing error has
occurred while in adjustment
mode.
Note Disconnection detection operates for input numbers used with a range of 1 to
5 V (4 to 20 mA).
For the CIO word addresses, n = CIO 2000 + (unit number x 10).
09 08 07 06 05 04 03
Disconnection
Detection Flags
(See 6-6-4 Input
Disconnection
Detection Function.)
RUN
ERC ERH
I/O status
Output value set
by output hold
function.
Conversion data
becomes 0000.
Holds the out-
put status imme-
diately prior to
the error.
Section 6-10
02 01 00
Output setting errors
(See 6-7-3 Output
Setting Errors.)
: Lit
: Not lit
Countermeasure
Correct the set value.
Check the rightmost byte of CIO
word n+9. The inputs for bits
that are ON may be discon-
nected. Restore any discon-
nected inputs.
Turn the Set Bit OFF, ON, and
OFF again.
If the error persists even after
the reset, replace the Analog I/O
Unit.