When the DXM is configured to use the cellular modem, the information on the cellular modem is found on the LCD menu
under
System Info
>
Cell
. The menu does not display values until a transaction with the wireless cell tower is complete.
If there are no webserver parameters defined, the user must force a push to retrieve the data from the cellular network. On
the LCD menu, select
Push
>
Trigger Data Push
.
Obtaining LTE service outside of the Banner Cellular Data Plans
—Customers have the option of securing a data plan for
the Verizon network themselves without using the Banner cellular data portal (
). Suitable plans
would include those available from Verizon directly or from a Mobile Virtual Network Operator (MVNO) licensed to resell
Verizon network data plans. (The SXI-LTE-001 will not function on AT&T, T-Mobile, or Sprint networks.) When purchasing a
data plan, it is important to refer to the modem by its official Verizon network name (for example, SENSX002) and give the
IMEI number (found on the cellular modem) to the plan provider. To use the SIM card that comes with the cellular modem kit,
give the SIM card number to the provider. The required SIM card form factor is 3FF - Micro.
6.5 Accessing the DXM Using SMS
The DXM with a cellular modem can be remotely accessed using SMS messages. Simple text messages can:
•
Force a push to the cloud
•
Reboot the controller
•
Read/write local registers
The incoming firewall provides security; only defined phone numbers are permitted to access the controller. Use the DXM
Configuration Software to configure the SMS commanding feature. This feature requires firmware version 2.01 or later.
SMS command messages sent from approved phone numbers to the DXM cause the DXM to respond. See the examples
below for SMS responses. Responses may take 20 seconds or more, depending upon the network.
A DXM requires a few minutes after powering up before it can accept SMS messages. Initial cellular connection times vary
based on the wireless network. A SMS message sent to the controller while a push session is active delays any response or
the SMS message may be dropped based on the length of the push session.
Configuring the DXM for SMS Controlling
— Configure the DXM for SMS messaging capability using the DXM
Configuration Software.
1. On the
Settings
>
Cloud Services
screen, set the network interface to Cell.
2. On the
Settings
>
Network
screen, enter the phone numbers that are allowed access to the DXM.
3. Save the configuration file (
File
>
Save
.
4. Load the XML file to the DXM.
5. After the device has been running for a few minutes, the cellular network should be operational. The phone number
(MDN) is visible on the DXM LCD menu (
System Info
>
Cell
).
6. Send a text message to the DXM from an approved phone number.
HTTP Push
Push
triggers a http push to a webserver. The DXM accepts the message, executes the action, and sends an
acknowledgment text message back to the user.
Example: Texting
push
forces defined local registers to be sent to a webserver
push
<send>
DXM acknowledgment text message:
Register push requested
Reboot
Reboot
triggers the DXM to reboot. The processor reloads the XML configuration file and zeroes all local register
data. This does not affect the other components of the DXM (ISM radio, I/O board, cellular modem). The DXM
accepts the message, executes the action, and sends an acknowledgment text message back to the user.
Example: Texting
reboot
forces the processor to reboot.
reboot
<send>
DXM acknowledgment text message:
rebooting…
Get Register
grN
gets register number
N
(DXM Local Register) and sends a text with the value back to the user. The response
text message shows the value in floating point format regardless of register number.
Example: Text
gr1
to retrieve the value for register 1.
gr1
<send>
DXM acknowledgment text message:
Register 1 is 0
Sure Cross
®
DXM100-Bx and DXM1000-Bx Wireless Controllers
42
www.bannerengineering.com - Tel: + 1 888 373 6767
