Yokogawa Touch Screen GP20 - Manual (Page 59)

1-45
IM 04L51B01-01EN
Configuring the GX/GP
1
2
3
4
5
App
DO Output Relay Operation
The DO output relay operation is shown below.
Alarm
DO output relay
(Reflash on)
DO output relay
(Reflash off)
Channel 1
Channel 3
Channel 2
500 ms, 1 s, 2 s
Energize or De-energize
AND/OR
Alarm
Channel 1
AND
Channel 2
OR
DO output relay
or
Internal switch
NO
Energize
De-energize
C NC NO C NC NO C NC
NO C NC NO C NC NO C NC
When power is
shut down
NO: Normally Opened
C: Common
NC: Normally Closed
Normal
operation
When an alarm
is occurring
Alarm
Normal
Alarm
Normal
Reflash
(You can set AND/OR for the DO output relay and
internal switch.)
(when a relay is set to OR logic)
Normal
Reset
Relay action on
ACK
Relay action on
ACK
occurrence
Activated
Deactivated
Activated
Deactivated
Activated
Deactivated
release
Activated
Deactivated
Display
Alarm
Hold
Non-hold
DO output relay
Hold
Non-hold
Hold
Non-hold
Non-hold/Hold
Relay is activated
after 100 ms.
Relay is deactivated
until the next
alarm occurs.
Alarm ACK Alarm ACK
1.4 Configuring DO Channels (Digital output channels)