Complete Analog subsystem includes Base Converter and Expander modules
Base Converter module has eight differential inputs individually configurable for voltage or current
Accepts unipolar or bipolar Analog Inputs up to \\\" 10 volts full scale
Accepts 4 to 20 milliamp current loop signals
Individual user scaling on each input channel on Base Converter module; scaling on a per module basis for Expander modules
Fast update rate for Base Converter module
Voltage and current Expander modules, each with 16 inputs, provides for additional inputs at a lower cost per point
Complete subsystem can accept up to 120 inputs
No jumpers or DIP switches to configure
Easy configuration with MS-DOSor Windows programming software configuration function. OK ANALOG INPUT SLOT CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8 EXP ACTIVE OK EXP ACTIVE Figure 1. Base Converter Module  IBM and PS/2 are registered trademarks of International Business Machines Corporation.  MS-DOS, Windows, Windows 95, and Windows NT are registered trademarks of Microsoft Corporation. GFK-0385F Analog Input System, High Level, 16 Channels 2 Analog Modules August 1997 Series 90
-70 Programmable Controller Data Sheet Manual GFK-0600F 57-2 Functions The High Level Analog Input subsystem for the Programmable Logic Controller (PLC) accepts analog inputs of up to ? 10 volts full scale, or 4 to 20 milliamp current loop signals. These inputs are converted to digital form for use by the CPU or other controllers accessing analog inputs via the VME backplane. Converted data is presented as 2?s complement (sign + 15 bits). The basic converter is 14 bits resolution (1 part in 16384); an oversampling and averaging technique further enhances this resolution. Inputs are protected against