User`s manual

94 www.rabbit.com Applications Programming

flexAnaInmAmps

float flexAnaInmAmps(Flex_IOPin *pin);

DESCRIPTION

Reads the state of the external analog input channel and uses the previously set calibration con-

stants to convert it to milliamps. This function is non-reentrant.

Also note that the value retrieved here is not read when requested; rather, the latest value that has

been calculated by the analog input interrupt service request is returned. The update rate is 2.5 ms

times the number of analog input channels.

PARAMETER

pin Pointer to the information structure for the selected pin.

RETURN VALUE

≥ 0: a milliamp value corresponding to the current on the analog input channel

FLEX_ANAIN_ERROR: overflow, out-of-range, or not an analog input