Analogue input
The module uses 4 analogue inputs with a resolution of 12 bit and an input range of 0 V...VDD. The input range can be arbitrarily expanded with the help of external voltage dividers or amplifiers. Every single input is referenced to GND and has an input resistance of about 1 MΩ. The absolute accuracy is 11 bits, as reference VDD/2 is used. This enables the display to measure analogue voltages, e.g. to display or save the values for further processing. The exceeding or undershooting of a threshold can also be used to trigger an alarm. The overview of the software commands for the analogue inputs can be found under the chapter 'Analogue Input' |
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