SCADA system for 24 analog signals
 


SCADA Systems

SCADA System for 24 analog signals

GDAS24A is a complete data acquisition system for 24 loop power 4-20 mA analog devices. It powers them, conditions and measures their signals with a very high accuracy. The PC software converts and scales the signals to engineering units, displays and logs all data. The logging can be be controlled by a remote switch or by the operator with a single click of the mouse. The data logging has a time out to prevent from producing huge files if the computer is left un-attended. The files have a special unique name and are in comma delimited format. So they take low space on the hard drive but in the same time can be easily imported to Microsoft Excel and compatible products. The system can be powered by any voltage from 90 to 264 VAC but the power to all sensors is isolated, highly regulated and protected. The hardware communicates to a PC by USB port but inside the enclosure the communication is RS485 MODBUS RTU so the system can also be connected to a RS485 network and be a part of it. Up to 82 systems can be connected to the same 2 wire of the RS485 MODBUS RTU network to build a SACDA system for total of up to 1968 analog signals.

Features
  • POWERS AND MEASURES THE SIGNAL OF 24 LOOP POWER 4-20 mA SENSORS
  • PC MASTER SOFTWARE COLLECTS DATA, DISPLAYS ALL SIGNALS AND STORES THE DATA IN A SPREADSHEET WITH AN ELAPSED TIME STAMP
  • THE TYPICAL ERROR FOR ALL INPUTS IS 0.01% FS
  • REMOTE OR LOCAL START/STOP OF THE DATA LOGGING AND THE STOP WATCH
  • ALL DATA CAN BE READ UP TO 15 TIMES PER SECOND
  • HIGH PROTECTION ON ALL INPUTS
  • UNIVERSAL POWER: 90 264 VAC, 45-65 Hz
  • CAN ALSO BE POWERED BY 24 VDC
  • ALL INPUTS ARE HIGHLY PROTECTED
  • USB TO RS485 CONVERTER BUILT-IN FOR EASIER CONNECTION TO A PC
  • CAN BE DIRECTLY CONNECTED TO AN EXISTING RS485 MODBUS RTU NETWORK
  • STOP WATCH WITH ERROR LOWER THAN 1 ms
  • VERY HIGH PROTECTION ON ALL RS485 PORTS
  • BUILT-IN TERMINATION RESISTORS, JUMPER SELECTABLE
  • MODBUS RTU COMPLIANT
  • HIGH EFFICIENCY, LOW POWER CONSUMPTION
  • SMALL SIZE


 
SCADA system for 24 analog signals