Linkwise Technology Pte Ltd REX User Manual
Chapter 10: Relay Output Configuration
REX has 2 relay outputs. These outputs can be turn on, off, or pulse remotely via SMS commands. It can
also be controlled from locally in or remotely from the web page access (Status page).
Figure 10.1 Relay Output Configuration
The 2 relay outputs are Y1 and Y2. The user can create a description for each input of up to 20 characters
long. The two output description should not be identical. Each Relay output has its own sets of settings.
Remote Control Output using SMS
This feature enables user to switch any of the 2 outputs on (contacts close), off (contacts open) by sending
the appropriate
Action SMS
message to REX unit. REX is
non-case sensitive
to the received Action SMS
messages. After performing the required action, REX replies to the sender with the corresponding
Reply
SMS
message.
In the example shown in (Figure 10.3), to switch Relay 1 on (i.e. to close the contacts), send an SMS “
#on
Relay Output 1
” message to REX. Upon closing the Relay 1 contacts, REX will reply with the SMS
message “
29/12/2017 15:05 (REX) Relay Output 1
→
ON Triggered
”. To prevent ambiguities, each Action
SMS message must be unique. Remember that the messages are case insensitive.
Another way to control output relay without going through SMS is by clicking on the output control section in
the Status page.
