They are 'normal' 24VDC sinking inputs and 24VDC sourcing outputs.ckchew666 said:Does anyone know what's the input & output type of IO at the Siemens S5-95U? It has 16 DI & 16 DO.
There are also a number of interrupt and counter inputs on one D-sub connector, and some analog i/o on another D-sub connector.
The interrupt and counter inputs can also be used as normal inputs. So when you check an old 95U for where its i/o are used, be sure not to miss the special i/o.