Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 31)

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IM04L41B01-65EN
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Index
Viewing and Creating Setup Data
2.6 Configuring the System Mode
Alarm/Relay/Remote
2. Click here (also selectable from [Setting] - [System Mode Setting]).
1. Select this tab.
Remote control
terminal number
Resets the range
selection.
Copy and paste the
selected range
(see page 4-15).
Select actions.
Alarm/Relay
• Reflash
When multiple alarms are set to one alarm output relay, this function notifies the
succeeding alarms after the first alarm that causes the relay activation.
• Relay AND
Set the range of relays (from the first alarm relay) to take the AND logic. All other
relays will be set to OR logic. If [NONE] is selected, all relays will operate using the
OR logic.
• AND: Activated when all alarms are being generated simultaneously.
• OR: Activated when at least one of the alarms is being generated.
• Relay Action
Select whether to energize or de-energize the alarm output relay when the alarm
occurs.
• Alarm Relay Behavior
• Unhold: Turns OFF the output relay when the cause of the alarm is no longer met.
• Hold: Holds the output relay ON until the alarm acknowledge operation is executed.
• Alarm Indicator
Unhold, Hold: See “Alarm Relay Behavior.”
When [Alarm Relay Behavior] is set to [Hold], only [Hold] can be selected for the [Alarm
Indicator].
• Rate of Change Increase/Rate of Change Decrease
Select the time interval for the rate of change alarms in terms of the number of
samplings (1 to 15).
Interval = scan interval × number of samplings
• Alarm Hysteresis
A width (hysteresis) of 0.5% of the display span can be specified on the value used
to set or release the alarm. This applies to upper (H) and lower (L) limit alarms on
measurement channels.