The Nubitek SMS Manager library is directly integrated into the STEP 7 MicroWIN environment. This allows you to use the SMS send/receive functions as if they were actual system functions:
You will be able to easily develop the SMS communication application together with the rest of the control project, with no incompatibilities of any kind, even for already existing projects.
Sending an SMS with Nubitek SMS Manager only requires a simple program line calling the function Send_SMS. A very simple task that provides powerful features:
Sending a command or question via SMS to your installation is an easy task thanks to Nubitek SMS Manager. It can be processed in a single line of programming, just as if an operator were to push a control button.
The Nubitek SMS Manager features allow you to forget the complicated management of the port in Freeport mode, GSM modem control and string analysis. It all becomes transparent to the user:
A CPU 224 or higher is required to run Nubitek SMS Manager. The memory requirement for the library program prevents it from running on a CPU 221 or 222. The treatment of text strings performed by the library requires a CPU S7-200 xxx23.
The Nubitek SMS Manager library has a program size of 6.5 Kbytes.
In addition, it requires 661 bytes of V memory for internal management of work variables, whose location can be defined by the user.
To install and use Nubitek SMS Manager you must have STEP 7-MicroWIN 4.0 for Service Pack 2 or higher.
For more detailed information, consult the SMS Manager user manual, available on the downloads page.
torna indietroThe text of the message is written in the Data Block as character strings. Recipient telephone numbers are defined in the same manner. For this reason, the user defines them in a simple and flexible way, according to his or her necessities:
Yes.
By using SMS Manager in each station, an application can be easily developed to send commands from one station to another. The developer can define these commands in a very flexible way: they can be set orders (with a set text message) that always trigger the same actions; or they can be orders which incorporate numerical variables that, when processed, vary the behavior of the planned action at the slave station.
In summary, with Nubitek SMS Manager any communication protocol between machines can be defined.
torna indietroIt is done automatically. In the SMS text defined in the Data Block, an identifier is inserted in the position where you would like to insert the variable. This identifier can be &I for a simple integer value, &D for a double integer, and &R, &RR or &RRR for a real value (to include 1, 2, or 3 decimals). On the other hand, the send function Send_SMS, has an input parameter, Value. This way, when the SMS to be sent includes an identifier for the insertion of a numerical value, the number is taken from this parameter and is included automatically.
For example, to send a temperature value with two decimal places stored in the real variable VD200, the following would be written in the data block: VB3000 "The temperature of the system is &RR degrees centigrade", VD200 is written in the Value parameter of the Send_SMS function, and the resulting message received would read "The temperature of the system is 184.57 degrees centigrade".
torna indietroTo activate access via Teleservice, you must first indicate the application that configures the port, allowing access. This can be done in two ways:
Following, you can activate access via Teleservice from STEP7 MicroWIN, as usual. For security reasons, the system returns to the message mode after two hours of connection, although the online programmer can speed up this process by forcing the END_Teleservice bit a few seconds before disconnection.
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