4
DO......................digital output (e.g. switching output)
DI........................digital input (e.g. status input)
AO......................analog output (e.g. 0-10V output)
AI........................analog input (e.g. measure input)
The number following this designator specifies the input/output. Examples:
DO 0.0................1st switching output of the controller
DO 0.1................2nd switching output of the controller
AI 0.0 ..................1st analog input (e.g. thermocouple) of the controller