3700 | Triconex Analog Input Module

Analog Input Modules receive analog signals of these types: 0-5 VDC, -5 to +5 VDC, 0-10 VDC, and Thermocouple types J, K, T and E. Available in both isolated and DCcoupled versionsAnalog Input (AI) Modules includes three independent input channels. Eachinput channel receives variable voltage signals from each point, converts them to digital values, and transmits the values to the three Main Processormodules on demand. In TMR mode, one value is then selected using a midvalue selection algorithm to ensure correct data for every scan. Sensing of each input point is performed in a manner that prevents a single failure on one channel from affecting another channel. Each Analog Input Module sustains complete, ongoing diagnostics for each channel. Failure of any diagnostic on any channel activates the Fault indicator for the module, which in turn activates the chassis alarm signal. The module’s Fault indicator merely reports a channel