4-2-6 Process Value Alarm Settings - Omron SYSMAC CJ1W-AD04U Operation Manual

Detailed Description of User Settings Area Data

4-2-6 Process Value Alarm Settings

The high/low value setting is set in DM word m+18, as shown in the following
diagram.
Bit
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
D (m + 18)
0: Fix the process value at highest value when there is a sensor error.
1: Fix the process value at lowest value when there is a sensor error.
High and low limit alarm values can be set independently for each input's pro-
cess value. One high limit and one low limit can be set.
The Expansion Setting Area can be used to output a limit alarms to an output
device without using the ladder program.
Alarm high limit (H)
Alarm low limit (L)
Process value input
Alarm output (H)
Alarm output (L)
Each input's high and low alarm set values are set in the DM Area, as shown
in the following table.
DM word
Input 1 H (high limit) alarm set value −32,768 (8000 hex) to 32,767
m + 2
m + 3 Input 1 L (low limit) alarm set value
m + 6 Input 2 (high limit) alarm set value
m + 7 Input 2 (low limit) alarm set value
m + 10 Input 3 (high limit) alarm set value
m + 11 Input 3 (low limit) alarm set value
m + 14 Input 4 (high limit) alarm set value
m + 15 Input 4 (low limit) alarm set value
Note The settings apply to the process value after zero and span adjustment.
Function
(FFFF hex)
Section 4-2
Set value
37