MAQ20® Data Acquisition and Control System meets ANSI/IEEE C37.90.1 standards.

Press Release Summary:

Available in MAQ20-DIV20/MAQ20-DIVC20 and MAQ20-DODC20SK models, MAQ20® Data Acquisition and Control System come with PID control, alarms, counters and timers. MAQ20-DIV20/MAQ20-DIVC20 modules offer 1500Vrms input-to-bus isolation and each channel is protected to 150Vrms overload. MAQ20-DODC20SK feature 1500 Vrms output-to-bus isolation and each channel is protected to 60VDC overload. Units are operated in -40°C to +85°C temperature range with 7-34VDC input power.

Original Press Release:

Dataforth Adds Two New Modules to Leading-Edge MAQ20® Data Acquisition & Control System

Dataforth Corporation, Tucson, AZ, has just added two new modules to the powerful MAQ20 system, significantly increasing its capabilities and flexibility for a wide range of industrial applications.

The High Density Voltage Discrete Input Modules (MAQ20-DIV20 and MAQ20-DIVC20) are two versions of the same module, offering 20 discrete input channels that interface to 10-32VDC signals. The MAQ20-DIVC20 module has a +24VDC compliance voltage for interfacing to relay contacts, solid state switches, or other devices that require an excitation. Discrete input states can be read individually or as a block and logic polarity can be user defined as standard or inverted. Field inputs have fast switching times and pulses as narrow as 200µs can be measured. Field input connections are made through high density spring cage terminal blocks.

Input-to-bus isolation is a robust 1500Vrms in the MAQ20-DIV20/MAQ20-DIVC20 modules, and each individual channel is protected up to 150Vrms continuous overload in case of inadvertent wiring errors.

The second new module is the High Density Isolated Discrete Output Module (MAQ20-DODC20SK), which has 20 isolated discrete output channels that can switch up to 60VDC signals and sink up to 3A of current. Channels can be switched individually or in blocks, and user configurable default output states, set upon power-up or module reset, ensure failsafe operation for critical applications. Logic polarity can be user defined as standard or inverted. Field outputs have fast switching times, and field output connections are made through high density spring cage terminal blocks.

Output-to-bus isolation is a robust 1500Vrms in the MAQ20-DODC20SK module, and each individual channel is protected up to 60VDC continuous overload in case of inadvertent wiring errors. In addition, this module has 150Vrms channel-to-channel isolation, providing the ability to control equipment with or without common signal grounds or different pieces of equipment with multiple reference potentials.

In both the MAQ20-DIV20/MAQ20-DIVC20 and MAQ20-DODC20SK modules, high channel count within the narrow module package gives exceptional functionality while preserving valuable mounting space, and high density minimizes cost per channel resulting in economical monitoring and control solutions.

Two other MAQ20 modules, the Isolated Process Voltage & Process Current Analog Input Modules (MAQ20-ISOMV/-ISOV/-ISOI) with channel-to-channel isolation, and the Discrete Relay Output Module (MAQ20-DORLY20) with 20 channels of relay output are in development and will be released in the near future.

Find the details on these new modules as well as updated data on all MAQ20 system modules in the 2017 MAQ20 Product Catalog, now online at

Other MAQ20 modules include communications modules; analog input voltage, current, thermocouple, RTD and potentiometer, strain gage, and frequency modules; analog output voltage and current modules, and discrete input/output modules.

MAQ20 system advantages include:

  • Industry’s most affordable price per channel
  • ±0.035% accuracy
  • 1500Vrms channel-to-bus isolation
  • Up to 240Vrms continuous field I/O protection
  • ANSI/IEEE C37.90.1 transient protection
  • Dedicated graphical control software packages
  • Advanced features including integral PID control, alarms counters, timers, and PWMs
  • 7-34VDC input power
  • -40°C to +85°C industrial operating temperature

The MAQ20 system incorporates more than 30 years of design excellence and quality in the process control industry. It was developed for factory, process, and machine automation; military and aerospace, power and energy, oil and gas, and environmental monitoring applications, and also is ideal for use in many test and measurement applications.

Worldwide, Dataforth products provide rugged signal and data integrity and wide spectrum accuracy. All products are manufactured in the USA and have been RoHS Compliant since 2006. The Dataforth Quality Management System is ISO9001:2008 registered.

For additional information, call 800-444-7644 toll-free, email, or visit our website at


Dataforth Corporation

3331 East Hemisphere Loop

Tucson, Arizona 85706

(520) 741-1404

FAX (520) 741-0762



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