Features

– 8 channels for 0… .20 mA, 4… .20 mA, 0… .5 V or 1… .5 V d.c. single-ended unipolar inputs.

– 1 group of 8 channels isolated from ground.

– 12-bit resolution.

– Transmitter supply current limited per channel.

– HART direct communication.

AI815 Analogue Input Module

The AI815 dcs-sis.com analogue input module has 8 channels.

The module can be configured as a voltage or current input. Current and voltage signals cannot be mixed on the same I/O module.

The voltage and current inputs can withstand overvoltage or undervoltage of at least 11 VDC.

Input resistance is greater than 10 M ohms for voltage inputs and 250 ohms for current inputs.

The module distributes external HART-compatible transmitter power to each channel.

This adds a simple connection for power distribution to 2-wire or 3-wire transmitters. Transmitter power is monitored and current limited.

If an external power supply is used to power HART transmitters, the power supply must be HART-compatible.

The module cycles through self-diagnostics.