IP-16ADC Greenspring IndustryPack Module

The GE Fanuc / SBS / Greenspring IP-16ADC IndustryPack Module is part of the IndustryPack family of modular I/O components. It provides 16 single-ended input lines or eight differential input lines. The single-ended and differential inputs may be dynamically mixed. The IP-16ADC provides 16 bits of resolution. Software programmable gains of 1 or 1/2 are provided along with software programmable modes of unipolar and bipolar. These two gains and two modes provide four input voltage ranges: 0 to 5, ±5, 0 to 10, and ±10. A very high precision on board voltage reference is used to provide exceptional stability. Software triggered auto-calibration provides a basic accuracy of plus or minus one LSB (least significant bit).

A track and hold circuit internal to the A/D IC ensures accurate measurement of time varying signals. The IP-16ADC automatically changes from tracking to hold mode as each conversion is started. The tracking slew rate and accuracy may be controlled by software. IP-16ADC conversion time is eight microseconds for the standard grade IP-16ADC. This provides a usable throughput rate of up to 100,000 conversions per second. The IP-16ADC has two conversion modes: Single and Continuous Conversion. In Single Conversion mode an A/D conversion is started by a write to a unique address in the I/O space and its completion is detected either by polling the Ready (SDL*) bit or by an interrupt.