Routers

You can use Unitronics cellular routers to send and receive SMS messages via Ethernet.

Depending on your model router, you may also be able to use it to perform a variety of communication tasks, including Modbus. In addition to Ethernet, certain models also support RS232, RS485, GNSS (GPS), and offer microSD and USB interfaces. Additionally, certain routers may include digital and analog I/O; check your model's specifications for details regarding supported features.

In order to use your router, you must configure it, and initialize it in your Ladder program.

Click Router in the Solution Explorer; the Router Window opens.
Click Enable Router.
Select your router model, and click the fields to enter the other parameters.
To enable the router to accept incoming SMS messages and add them to the SMS Received Queue, you must check the Receive SMS option.
To filter the phone numbers from which incoming message may be received, click Authorized Numbers and add permissible phone numbers to the list.

NOTE

Checking SMS Received adds the message to the queue.
However, the only way for the controller to receive the message is via the LF: Receive SMS

When you add the router, the program creates a struct that you can use in your program.

Name	Data Type	Definition
Success	Bit	ON= Router Initialized Successfully
Fail	Bit	ON= Router Initialization Failed
Status	UINT32	Code Message 0 = No Errors 1 = Function Started 2 = Function in Progress -1 = General initialization error -2 = Pin code Error -3 = Baud Rate Error -4 = Signal Quality Error -5 = Router name error -6 = Save router parameter error -7 = Modem GPRS error -9 = Router General Error -10 = Router signal quality error -11 = Router session ID error -12 = Router network type error -13 = Router GPS error -14 = Router mobile traffic error -17 = Router Model Name error -99 = Modem/Router not connected -100 = Modem/Router powered off
Signal Quality	UINT8	Written here by the controller
Router Name	ASCII	Entered by user when defining the Router.
NetWork Type	INT 16	0=No service \| 1=GSM/GPRS/EDGE\| 2=WCDMA/HSDPA/HSPA(3G) \| 3=TDSCDMA \| 4=LTE 4G) \| 5=CDMA \| 6=EVD0 \| 7=CDMA-EVD0
PIN Code	ASCII	Entered by user when defining the Router.
SMS Received Queue	UINT8	This is the number of SMS messages that are in the Router queue, that have not been transferred to the controller. Note that the only way for the controller to accept the message is via the Receive SMS ladder function.