User manual

915U-2 Wireless I/O Page 15
Page 15 User Manual
(transistor output). Each I/O point is linked to separate I/O registers within the I/O Data
Store.
There are also a number of Internal I/O that can be accessed from the I/O Data Store.
These inputs can be used to interpret the status of a single module or an entire system
 Battery voltage – The battery terminal voltage displayed as an Analog value.
 Loop Supply – Monitors the +24V DC Analog Loop Supply (ALS), used to power
analog current loops and displays this as an Analog value.
 Expansion Module Volts – Monitors the Supply voltage of the connected
expansion modules, displayed as an Analog value.
 RSSI – Will indicate the radio signal level for the selectable address, displayed
as a dB level. Note: Only available in Legacy version. Otherwise, refer to
Communication diagnostics functions
 Comms Fail – A selectable register can indicate a Communications fail for a
particular message transmission.
The Expansion port, allows 115S expansion I/O modules to be added to the module.
Expansion I/O is dynamically added to the internal I/O of the 915U-2 by adding an offset
to the address.
1.3 Getting Started
Most applications for the 915U-2 require little configuration. The 915U-2 has many
sophisticated features, however if you do not require these features, this section will
allow you to configure the units quickly.
First, read Chapter 2 - “Installation”, which will go through the power supply,
antenna/coax connections and any I/O connections.
Power the 915U-2 and make an Ethernet connection to your PC (refer to Section 4.1
“First time Configuration”)
Configure the Ethernet Interface with an IP address that is compatible with your network
or computer via the Network Configuration webpage.
Save the configuration and the 915U-2 module is now ready to use. For an instruction
on configuration refer to Section 4.1 “Module Configuration”.