ELPRO ERRTS ALERT2, Руководство по настройке

Страница: 44 / 56

ERT-A2 ALERT2 Configuration Manual Revision 1.0
37
SDI-12 Smart Sensor Configuration
This configuration allows SDI-12 sensors to added and variables configured to be sent over the
ERTA2 communications port.
TIP: If you are adding multiple sensors to the SDI-12 port it is best to connect one sensor at a time
and use scan to add sensor measurement variables, change address to unique value. Then connect
the next sensor, use add sensor option, change address, and so forth until all sensors are added.
The SDI-12 configuration menu has the following options.
SDI-12 config Menu: Description
a) Scan for Device Send out address query to identify any connected sensor and
then automatically add sensor found.
b) Manually add Device Send manual commands to sensor diagnostic
c) Send manual command Send manual command to add sensor. Use this option if more
than one sensor connected to bus.
d) SDI Sampling Time Configure the SDI sensor system sample time in minutes and
warmup time in seconds. This is common for any connected
sensors and warmup time should be configured to allow for
slowest sensor.
e) SDI Measurement CMD Change the measurement command from default (M!) to R! or
to use CRC with MC! or MR! commands. Leave at default if
unsure.
f)….o) Setup Sensor AA ID As sensors are added with address AA and ID using Scan or
Manual Add menu options the menu to grow more options for
the setup of each sensor.
Eg.
f) Setup Sensor 5 5ELPROTECH##0000011.0001
When you select automatic scan for a connected sensor the ERTA2 will power the sensor and then
send an address query command using the default warmup time. For very slow sensors you may
need to adjust this longer to get a response. The Scan for Device option will take quite some time as
it powers sensor, waits for the warmup time (default is 20 seconds), then request address, number
of measurement variables and waits the measurement time to get current measure variable values.
Once the scan for device process is complete the sensor configuration menu is opened. See below
for an example of the process
Selected option a) to Scan for Device:
Warming up the Sensor...
Waiting for response....
Setting up the sensor....
Config NOT Saved
Addr: 5