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GTM PLC: How it works
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The new GTM PLC extension board has been designed to work with the MITSUBISHI ALPHA 2 XL. It is a extension board with an integrated quad band GSM chip and new features allowing almost all GSM remote applications to be built.
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Both programming use the same PLC programming cable.
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AL-PCS/WIN-E2 SOFTWARE
Standard programming
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GTM PLC Programming SOFTWARE
SMS, period, destinations, Datalogger, etc…
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The GTM PLC uses the Dedicated Protocol (DP) in order to communicate with the PLC via IR. Giving orders, receiving values, setting up parameters on Function Blocks (FB)…
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AL-PCS/WIN-E2 SOFTWARE
Standard programming
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First the user will download the Base Function Block Diagram from AXELPROD web site.
Then, the programmer will build his application as normal. Each FB (CB) status that will be used to generate a SMS must be wired with a OFF-DELAY. (B194, B196, B199 )
Then, all OFF-DELAY FB will be added automatically in the FB list. The user will choose among the FB list the right OFF-DELAY FBs to create a CB list.
This CB list will be scanned by the GTM PLC and if one of their status moves from OFF to ON (or ON to OFF) the corresponding pre programmed SMS will be sent.
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GTM PLC Programming SOFTWARE
SMS, period, destinations, Datalogger, etc…
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For each CB in the CB list a name, a SMS message, an optional SMS message return and a list of destination will be programmed.
Other functions can be programmed like naming the CW, naming the outputs, adding command at the end of the SMS, choosing the data logger values, event file upload period, etc…
Download here an event file example.
Download here a data file example as it is received by the server, before treatments.
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After the programming is done, power the ALPHA 2 XL and the GTM PLC, all information about the process will be displayed on the ALPHA 2 XL display.
Once the GTM PLC booting is over it is inside a loop where it scans all CBs to detect any status change in order to send the corresponding SMS, looks for any incoming SMS, save values for the data logger and looks for the data logger upload period ending.
Download here the full pps presentation.
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This endless combination between the GTM PLC and the ALPHA 2 XL will provide a very powerful PLC-GSM solution covering most of applications and open new perspectives and markets in GSM remote control industrial applications.
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