Product Description:

The M.1017.3140 analog output module is produced by Danaher for the Block IO Analog Modules series. It occupies a single slice on a distributed I/O rail and translates binary control words from a PLC into precise bipolar voltages for motion drives, valve positioners, and instrumentation loops. By placing the conversion electronics close to field devices, the product simplifies plant wiring, minimizes analog noise pickup, and supports modular expansion of industrial automation cells without rerunning long multiconductor cables to the central controller.

Beneath the cover, a digital-to-analog converter with a resolution of 16 bits creates 65,536 discrete code levels, resulting in a nominal step size of 0.305 mV across the module’s ±10 VDC span. The slice provides 4 independent differential outputs, so adjacent channels do not share a common reference, which is an advantage when driving grounded loads. Each channel can source or sink up to ±10 mA, allowing direct connection to high-impedance process inputs and active servo drive references. Power-up and scan-loss conditions force the outputs to 0 V ±50 mV, preventing unintended motion until the controller refreshes the output data.

System power is delivered through the backplane at 24 VDC, and the module typically draws 200 mA during steady operation. At startup, an inrush of 2.5 A for 250 µs must be considered when sizing supply breakers and calculating the backplane power budget. Output accuracy is maintained within ±1% FSR, which limits process deviations across temperature and load changes. For fault tolerance, the differential drivers incorporate current-limited outputs that protect against accidental short circuits in the field wiring. This protection operates at each output rather than relying only on upstream supply protection.