Kramer Electronics Ltd.
SL-280 – Remote Operation via the Web Pages
19
Changing the State of a Relay Port
SL-280
web pages enable you to change the state of each of the relay ports
.
The
SL-280
relay ports have the following characteristics:
•
Default state of relays 2–4 and 6–8 is NO (normally open)
•
Default state of relays 1 and 5 can be NO or NC (normally closed), depending on how
they are connected to the device (see
Connecting the Relay Ports
on page
8
)
•
Rated at 30V DC and 1A
•
A non-latching relay function – the contact is left in its default state when unpowered or
in power up state. This means that if a relay is in its non-default state and power is lost,
the relay returns to its default state. To return it to its pre-power loss state, the setting
must be changed using either the web pages or a Protocol 3000 command.
To change the state of a relay, (for example, relay 2):
1. Click
Relay Ports Settings
on the left side of the web page (
Figure 5
).
The Relay Ports Settings page appears.
Figure 14: Relay Ports Settings Page
2. In the Port section, click the number (1–8) of the relay port to be changed.
The current status of the selected relay appears.
3. Click
Close/Open
.
The relay changes to the selected state.
When relays 1 and 5 are connected as NC (see
Connecting the Relay Ports
on page
8
), the
Current status buttons are reversed.
Clicking Open closes the relay and clicking Close opens the relay.
