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grifo® Telecontrol GSM - GMB HR84 +GMM xxx

GTG English Tech. Manual PDF format.

Ver. xxx - Rel. xxx.

Devices involved in GTG Telecontrol

GTG is a system for remote plant Telecontrol based on GSM network.
It takes advantage of a wireless communication performed through SMS (Short Messages Service) and/or telephone rings, with no use of data traffic of GSM network. The operating expenses are reduced to minimum level and its management is easy, fast and suitable for any users.

This product is the result of numerous experiences, collected in many years by grifo®, during the development of industrial applications and, in details, of not real time Remote Telecontrols. In this sector the equipments must set, acquire and control different signals and measures of the plant. Everything must happen in a simple, reliable and cheap manner, without times restrictions.

The GTG has been developed in order to be used with the grifo® Mini Block GMB HR84 board, coupled with one of the numerous Mini Modules (GMM xxx) cards. By choosing the right cards the user can selects the best resources, for features and price, to obtain the hardware more suitable for each applications. So it is possible to find out the hardware that "perfectly satisfy" the user requirements.

Typical Telecontrol Configuration through GSM.

All the output lines of GTG can be set by using simple SMS commands. Moreover a notification SMS can be received directly by your personal mobile phone. Each input lines of can be joined to advisory SMS that will be sent when preconfigured events happen.

The GTG configuration is really simple in fact proper commands can be sent through SMS or it can be used the Serial Configuration. The last one uses the RS 232 line, always available on each selectable hw, connected to a standard PC that executes a simple and free Terminal Emulation software. The configuration modality is normally used only one time, before the complete system is installed, and it doesn't require additional products.

All the GTG commands are brief and easy to manage in order to simplify their typing on mobile phones. The answers are always readable with no decoding and without additional documentation for translation.
Whenever the user doesn't want mobile phones as counter-parties of GTG, he can profitably use some PCs, connected to GSM network by a suitable interface (GSM modem, Internet key, mobile phone connected to PC, etc.). The PC adds new application fields, in fact the Telecontrol, through a proper program, can be completely automated. The exchanged data could be automatically managed and, if required, saved on a permanent memories in order to develop Data Loggers.
The GTG command can be even combined or in other words, it can be managed either by human users or by PC. In fact it supports more than 100 telephone numbers capable to interact with the system. These numbers are divided in three access levels in order to distinguish the executable operations. This features avoids unauthorized users to perform functions not allowed at his level.

GENERAL FEATURES

In order to simplify the description we define:
- Digital output -> relay output of the selected hw;
- Digital input -> optocoupled input of the selected hw;
- PWM -> pulse width modulation output of the selected hw;
- Analog input -> analog input of the selected hw for voltage or current signals;
- Counter -> counter input of the selected hw dedicated to status change count.

The type, the connection and the number of these hw resources is detaily described inside technical manuals of the selected grifo® cards; the user must refer to these document for any required information. For example, a minimum hardware composed by GMB HR84 + GMM 5115 has the following resources:
- 4 relays outputs;
- 8 optocoupled inputs NPN or PNP;
- 1 PWM signal at TTL level;
- 1 analog input for voltage signals in the range 0÷2.5 V;
- 4 optocoupled counters with 16 bits.

The most important features of GTG are summarized in the following points..

• Complete Configuration of the product that defines the working modalities.
• The configuration is performed through SMS sent to GTG or through an RS 232 serial communication with a PC.
• Dedicated programs are not required on PC used for configuraton but it can be used a simple and free of charge Terminal Emulation program, as HYPERTERMINAL.
• The serial configuration supports two selectable languages (Italian and English).
• Configurations are mantained in not volatile memories (EEPROM and SIM) with specific algorithms and reliability controls.
• Validity check on configurations with automatic recovery of possible errors.
• Digital outputs are driven by SMS, with configurable switching times.
• The switching times of digital outputs allow to drive the outputs in three different modes:
  • Simple status switching
  • Output enabled mantained for a time interval
  • Output disabled mantained for a time interval
• Command that returns the Total Status of system. through SMS, complete of the current settings of all the available resources on the selected hw (digital output status, digital input status, counters values, analog inputs values, last setting of PWMs).
• SMS with total status of system can be received after a Switching of digital outputs, when a configuarble delay before reply elapses. With this feature the GTG autonomously signals the effects produced on the complete system, by outputs open/closure.
• Continuos Control for Events activation on digital inputs and respectives signalations.
• The digital inputs events are configurable for Activation Status, Activation Time of the status and SMS Text that GTG sends automatically upon activation.
• Continuos management of Counters that can be acquired and set through SMS commands.
• Continuos Control for Events activation on analog inputs and respectives signalations.
• The analog inputs events are configurable for Activation Set-point, Control Type on set-point (greather than or smaller than), Hysteresis and SMS Text that GTG sends automatically upon activation.
• Duty Cycle of PWM signals can be set and acquired through SMS commands.
• The first digital output can be switched also with a simple Telephone Ring.
• Management of 106 telephone numbers divided as follows:
  • 1 x level 1 authorized to perform all operations;
  • 5 x level 2 authorized to perform all operations except the configurations;
  • 100 x level 3 authorized only to switch the first digital output with telephone ring.
• The 3 access levels allow to distinguish the GTG users; for example the level 1 can be associated to installer that become the single user allowed to reconfigure the system.
• The level 1 telephone number is configurable with a dedicated procedure that can be executed only after the first power on of GTG, in order to make it extremely protected.
• Viceversa the level 2 and 3 telephone numbers are configurable through proper SMS commands. As the last ones are configuration commands, only the level 1 can change the numbers of the other levels. This features ensure that Unauthorized Users can't perform not Allowed Actions.
• All the SMS commands are protected by a configurable 5 digits Password.
• 1 second resolution on all Timings.
• All the Times configurable by commands can range from 0 to 65.535 seconds.
• The type and number of availabe hw resources can be chosen by selecting the cards among the numerous grifo® models, inside the Mini Block (GMB xxx) family coupled with a Mini Module (GMM xxx)

For further information please refer to proper GTG user's manual.

The GTG manages the SMS described in the following table:

G T G Summary Table of Communicated SMS
Description		SMS from External System to GTG	SMS from GTG to External System
C O M M A N D S	Require Total Status	ST?	O1=ON/OFF O2=ON/OFF " " I1=ON/OFF I2=ON/OFF " " C1=xxxxx C2=xxxxx " " AD1=xxxx AD2=xxxx " " P1=xxx
	Enable Start-up SMS sending	S:ON/OFF	-
	Set Start-up SMS text	PT:start-up text	-
	Set Password	PN:xxxxx	-
	Require Versions	V?	Ver. HW=used cards Ver. FW=xx
	Restore Factory Configurations	R:	-
	Set Level 2 Telephone Number	C2:xxxxxxxxxxxxxxxxxxxx	-
	Delete Level 2 Telephone Number	CR:xxxxxxxxxxxxxxxxxxxx	-
	Set Level 3 Telephone Number	CL:xxxxxxxxxxxxxxxxxxxx	-
	Delete Level 3 Telephone Number	CD:xxxxxxxxxxxxxxxxxxxx	-
	Switch Digital Output	OnON/OFF	-
	Set Switching Time for Digital Output	On:xxxxx	-
	Set Delay Before Reply with Total Status SMS, after Digital Output Switching	An:xxxxx	-
	Set Activation Time for Digital Input Event	In:xxxxx	-
	Set Activation Status for Digital Input Event	Vn:0/1/D	-
	Set SMS Text for Digital Input Event	En:digital input n event text	-
	Set PWM Duty Cycle	PW:xxxxx	-
	Set Counter	SCn:xxxxx	-
	Configure Double Function Signal	AP:A/P	-
	Set Analog Input Event	ADn:>/</D,setpoint,hysteresis, analog input n event text	-
E V E N T S	GTG power on with Start-up SMS sending enabled	-	start-up text
	Elapsed Delay Before Reply, after Digital Output Switching	-	O1=ON/OFF O2=ON/OFF " " I1=ON/OFF I2=ON/OFF " " C1=xxxxx C2=xxxxx " " AD1=xxxx AD2=xxxx " " P1=xxx
	Event Activation Status mantained on Digital Input n for the Event Activation Time	-	digital input n event text
	Analog Inputs n >/< Set Point with Hysteresis	-	analog input n event text

REQUIREMENTS

- At least one grifo® GTG hardware device.
- A power supply source for the selected hardware device.
- A DIGICOM POCKET GPRS TM modem complete of power supply and antenna.
- A SIM for mobile phone enabled to voice and SMS traffic.
- Serial communication cable between grifo® hardware and modem.
- A mobile phone provided of SIM, or equivalent system.

When the serial configuration must be used, the following items are required too:
- A PC provided of one RS 232 asynchronous serial line (COMx).
- Serial communication cable between grifo® hardware and PC.

House Automation Example. Connection of Sensors and Actuators.

Last Up-dated at May 20, 2010

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