Tool Analogue Inputs

Description

Tool Analogue Input are non-differential and can be set to either voltage (0-10V) or current (4-20mA) on the I/O tab. The electrical specifications are shown below. Parameter Min Type Max Unit Input voltage in voltage mode -0.5 - 26 V Input resistance @ range 0V to 10V - 10.7 - kΩ Resolution - 12 - bit Input voltage in current mode -0.5 - 5.0 V Input current in current mode -2.5 - 25 mA Input resistance @ range 4mA to 20mA - 182 188 Ω Resolution - 12 - bit Two examples of using Analog Input are shown in the following subsections.

Caution

Analog Inputs are not protected against over voltage in current mode. Exceeding the limit in the electrical specification can cause permanent damage to the input.

Using Tool Analog Inputs, Non-differential

This example shows an analog sensor connection with a non-differential output. The sensor output can be either current or voltage, as long as the input mode of that Analog Input is set to the same on the I/O tab. Note: You can check that a sensor with voltage output can drive the internal resistance of the tool, or the measurement might be invalid.

Using Tool Analog Inputs, differential

This example shows an analog sensor connection with a differential output. Connecting the negative output part to GND (0V), works in the same way as a non-differential sensor.