Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 79)

1-67
IM 04L31A01-01E
Explanation of Functions
3
2
1
4
5
6
7
8
9
10
11
12
13
14
Alarm ON
When set to non-hold
When set to hold
Alarm OFF
Relay output ON *
Relay output OFF *
Alarm ACK
Alarm ON
Alarm OFF
Relay output ON *
Relay output OFF *
* Relay output ON/OFF is for the case when
NO (Normally Opened) terminal is used.
If a NC (Normally Closed) terminal is used,
the ON/OFF condition is reversed from the
condition shown in the left figure.
Note
When the reflash alarm is turned ON, I01 to I03 are set to non-hold. Specifying [Hold]
produces no effect.
Hold/Non-hold of Alarm Indications
You can select the following behavior when the alarm switches from the activated
condition to the released condition.
• Clear the alarm indication with the release of the alarm (non-hold).
• Hold the alarm indication until the alarm ACK operation is performed (hold).
The initial setting is [Non-hold].
Alarm Icon Indication Example
Release
When indication is set to non-hold
Alarm
Occurrence
Red icon
Red icon
Indication
None
When indication is set to hold
Occurrence
Release
None
Blinking
red icon
Blinking
green icon
Alarm ACK
Blinking
red icon
Alarm ACK
Alarm
icon
Note
The non-hold/hold setting of the alarm indication also applies to control alarms.
Showing/Hiding the Alarm Display (Style Number S3 or Later)
You can select whether or not to display alarms when they occur. When not displaying
alarms, the alarm is output but not retained in the alarm summary.
1.15 Measurement Function > Measurement Alarm Related Settings