User`s manual

46 www.rabbit.com EM1500 Configuration
Relay action on open
When a connection is opened to this port from the network, one of the following
actions may be taken on the SPDT relay:
• None
• Latch on
• Latch off
• Momentary on
• Momentary off
Relay action on close
When a connection is closed, one of the following actions may be taken on the SPDT
relay:
• None
• Latch on
• Latch off
• Momentary on
• Momentary off
Relay timer (ms)
Relay timer for momentary actions.
NOTE: It is possible to enter contradictory or nonsensical settings for the relay.
For example, SER1 causes “Latch on,” and SER2 causes “Momentary on.” Nor-
mally only one serial port should specify relay actions other than “None.” Oth-
erwise each action is taken at the point of opening or closing the network
connection. If the relay is already “on” (closed) then an action of “Momentary
on” will have the effect of leaving the relay on for the specified momentary
interval, then turning it off.