Read only the digital outputs. Uses absolute addressing. Usable with 1 or 8 outputs only. Must start at a multiple of 8 when reading 8 outputs. (ie. 16-23)
Write only the digital outputs. Uses absolute addressing. Usable with 1 or 8 outputs only. Must start at a multiple of 8 when writing 8 outputs. (ie. 16-23)
Read only the digital inputs. Uses absolute addressing. Usable with 1 or 8 inputs only. Must start at a multiple of 8 when reading 8 inputs. (ie. 16-23)