Remote control and monitoring

CMACS is a control and monitoring unit designed to measure remote site conditions and alert personnel by mobile phone SMS message if an alarm condition occurs. The site monitor may then be interrogated remotely by supervisory software for real-time measurement information or to take corrective action by activating digital outputs.

Messages are sent from the monitor directly to the mobile phone network by an internal GSM or CDMA modem. No telephone line is required, however the monitor must be located in a GSM or CDMA coverage area.

The unit has eight analog inputs, eight digital inputs and eight digital outputs. Alarms are generated by change of state at the digital inputs or analog inputs crossing user defined setpoints.

Programming software supplied can configure these alarms to send SMS messages to one or more mobile phones. Outputs may be activated by either a remote computer connected via the GSM or CDMA network or by SMS directly from a mobile phone.

With its supervisory software, it is a fully self-contained control and monitoring system that requires only the connection of an external CDMA or GSM antenna. The analog inputs measure directly any voltage from -30 to +30 VDC at greater than 20 mV resolution. Each input has high and low alarm capability with hysteresis to prevent false alarms.

Each output has an uncommitted contact closure that may be set via the software running on a PC or by an SMS message from a mobile phone. Contact rating 240 VAC at 5 A.