DGH Analog Outputs
The DGH D3000/4000 series are serial input-to-analog output devices. They are designed to communicate with RS-232 and RS-485 serial ports. Simple ASCII commands are used to control a 12-bit DAC (Digital-to-Analog Converter) which is scaled to provide either a current and voltage output. An internal 8-bit microprocessor provides the intelligent interface between a host computer and the DAC. The D3000 series modules provide a low cost step function analog output.  The D4000 series includes all D3000 features along with: True analog read-back capability (an 8-bit Analog-to-Digital Converter monitors the integrity of the output signal). It allows the user to monitor the output signal to ensure its integrity. A user-programmable communications watchdog timer to provide orderly shutdown of the output signal in case of computer or communications failure. User-programmable output slew rates for applications where a controlled rate of output change is needed. Selectable scaling of input data allows the user to scale output to desired units ( 0-100% instead of 4-20mA).  User-programmable starting value-protects equipment by providing a safe-start condition.
Voltage Outputs: (0-1V, 0-5V, 0-10V, +/-1V, +/-5V, +/-10V) Current Outputs: (0-20mA, 4-20mA)
Copyright © 2001 Dutile, Glines and Higgins Corporation. All Rights Reserved.