Yokogawa Button Operated DX2000 - Manual (Page 50)

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IM 04L42B01-01E
Overview of Functions
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App
Index
1.6 Event Action and Remote Control Functions
(/R1 and /PM1 Options)
A specified action is carried out when an event occurs. This function is called event
action. The remote control function (/R1 and /PM1 options) allows you to specify actions
to be performed when the terminal receives a contact input or an open collector signal.
The remote control function is configured using the event action function.
For the setting procedure, see section 7.1.
Events
• Events
Select from the following events.
Event Level/Edge *1 Description
Remote Level/Edge ON/OFF of the remote control input.
Output relay Level/Edge Activated/Deactivated condition of the alarm output
relay. Relay-Off *3
Internal switch Level/Edge The value, 0 (off) or 1 (on), of the internal switch.
Switch-Off *3
Timer Edge Timer timeout.
Match time timer Edge When the time matches.
Alarm Level/Edge The state in which any alarm is occurring and the state
in which no alarm is occurring. Alarm-Off *3
USER key Edge The operation of pressing the USER key.
Event edge switch *2 Edge Can be caused by:
• The Edge Switch soft key in the FUNC key menu.
• A dedicated communication command or Modbus
communication.
• The custom display
Event level switch *2 Level You can view the status of the switch in the event level
switch status display. Can be caused by:
EventLevelSwitch-
Off *3
• A dedicated communication command or Modbus
communication.
• The custom display.
*1 For a description of level and edge, see “Miscellaneous” in this section.
*2 This function is available for release numbers 3 and later.
*3 This function is available for release numbers 4 and later.
• Output Relay, Internal Switch, Alarm, Event Level Switch
The output relay, internal switch, alarm, and event level switch have two states, state
A and state B, which are explained in the table below. In explanations, “Output relay”
and similar states are referred to as “ON events,” and “Relay-Off” and similar states
are referred to as “OFF events.”
Event State A State B
Output relay Deactivated Activated
Internal switch OFF ON
Alarm No alarms At least one alarm
Event level switch OFF ON
When Edge Is Selected
An ON event occurs when state A changes to state B. An OFF event occurs when
state B changes to state A.
When Level Is Selected
If the action states that correspond to states A and B during an ON event are called
“state 2” and “state 1,” respectively, the action states that correspond to states A and
B during an OFF event will be state 1 and state 2, respectively.
See “Miscellaneous” and “Level and Edge” in this section.