Yokogawa Removable Chassis DX1000N - Manual (Page 9)

9
IM 04L41B01-03E
Alarm Output Relay Action When the Alarm ACK Operation Is Executed
You can select the relay output status that is enabled after the alarm ACK operation from
the following two settings.
• Normal: The relay output is deactivated when the alarm ACK operation is executed.
If the condition for activating the alarm output relay is met in the next scan
interval, the relay output is activated.
This operation is valid only when the alarm output relay is set to
Hold.
• Reset: The relay output is deactivated when the alarm ACK operation is executed.
If a new condition for activating the alarm output relay is met, the relay is
activated.
An example of the relay action when alarm ACK is executed is shown below. This
example is for the case when the output relay
AND item is set to OR and the Hold item is
set to Hold.
• Normal
Alarm ACK
Alarm output relay
Alarm 2
Alarm 1
Relay is activated in the next scan interval
ON
OFF
• Reset
Alarm ACK
Alarm output relay
Alarm 2
Alarm 1
Relay is activated on the next alarm occurrence
ON
OFF
Setup Screen
Press MENU (switch to the setting mode), hold down FUNC for 3 s (switch to the basic
setting mode), select Alarm > Switch, Relay
Setup Items
Relay > Relay Action on Ack
Select
Normal or Reset.
Section 3.5, “Setting the Auxiliary Alarm Function” in the user’s manual
Section 3.8, “Releasing the Alarm Output (Alarm ACK Operation)” in the user’s manual
Operation using communication commands: Page 20
Operations on the DX1000/DX1000N/DX2000