DATAQ Logo site map | search
Home         Products        Support         Sales        Applications       Checkout

Low-Cost Data Acquisition Starter Kit

Click Here

DI-917MB and DI-918MB

Multi-Channel Analog Output Modules
DC Current or DC Voltage Outputs
Discrete Outputs

  • Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
  • 12-bit D/A yields 0.1% of span resolution and accuracy
  • Four outputs in a single inch-wide module reduces system costs and saves panel space
  • Four discrete outputs enable host-controlled on/off switching
  • Heavy-duty 1A solid-state relays provide dependable on/off control of industrial devices
  • Self-calibration lowers maintenance costs by reducing periodic manual calibration checks
  • Watchdog timers provide a configurable failsafe output state for use when host I/O communication is lost
  • Three-way isolation eliminates potential ground loops between power, output and network circuitry
  • Self-diagnostics monitor microcontroller activity to detect operational failures (lock-up) and execute a reset to restore communication.

For more complete specifications, download the Data Sheet (left) or the Manual (right).

      Distributed Data Acquisition Datasheet          Distributed Data Acquisition Manual

DI-900 Modbus Distributed Data Acquisition

Specifications

917MB - DC Current Output Module with Discrete Outputs

Analog Output: 4 channels, 0 to 20mA output range
Discrete Output: 4 channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
Power: 10 to 36V DC, 24V AC
Network Communication: Modbus RTU high-speed RS-485

918MB - DC Voltage Output Module with Discrete Outputs

Analog Output: 4 channels, 0 to 10V DC output range
Discrete Output: 4 channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
Power: 10 to 36V DC, 24V AC
Network Communication: Modbus RTU high-speed RS-485
View Shopping Cart
Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country.
DI-900MB modules have typical lead times of 1-2 weeks.
Part Number Description Price
(US)		 DATAQ Store
DI-917MB 4-channel DC current output module. $350
Quantity:
DI-918MB 4-channel DC voltage output module. $350
Quantity:

Product Highlights

These modules drive four analog output channels and also feature four discrete outputs for on/off control. Isolation separates the output, power, and network circuits. Network communication adheres to the industry-standard RS-485 Modbus RTU protocol. AC and DC power sources are supported with nonpolarized, diode-coupled terminals.

The analog outputs generate a signal based on communication from the host. They accommodate wide DC voltage or current ranges. Discrete outputs provide simple on/off switching capability for external devices. See the Circuit Connection Diagrams.

Combining analog outputs, on/off controllers, and a network interface in a single package, makes this instrument extremely powerful. Multi-channel design adds cost-efficiency and allows high-density mounting. Plus, safe, rugged construction make it reliable for both control room and distributed field I/O use in a broad range of temperature control applications. Custom module configurations are also possible (consult factory for details).

Everything you need to complete your network is available from DATAQ Instruments, Inc. - isolators, signal converters, signal boosters, power sources, and mounting hardware. Check out the Accessories.

         
 

Data Acquisition Product Links:

(click on text to jump to page)

Data Acquisition | Data Logger | Chart Recorder | Thermocouple
Oscilloscope | Load Cell | Pressure Sensor
© 2008 DATAQ Instruments, Inc. All rights reserved. Date last edited 9/22/2006. mail Webmaster