4.3 Configuration4-54.3.2 No. of Occupied I/O Points of MEWNET-WIn W mode, the FP7 MW Unit occupies only one word. It is allocated as a flag for executingthe data transfer function (SEND/RECV instruction).Mode No. of pointsW mode Input: 1 word / Output: 1 word (Fixed) I/O AllocationI/Onumber Name DescriptionX100 Master communication clearto send flagTurns ON when the unit number of MEWNET-W has been setand the unit is in RUN mode.Y100 Master communication sendactive flagTurns ON during sending data by SEND/RECV instruction.Turns OFF when the ED instruction is executed after thecompletion of the response receive processing.(Note 1): Each contact in the table above is used for reading the operation status. Do not write them using userprograms.(Note 2): The above I/O numbers are those for the base word number 10.4.3.3 Confirmation of Slot NumbersSlot numbers are decided by registering units in the I/O map. Slot numbers are used whenreading or writing the values of unit memories by user programs. They are also used whenperforming the data monitoring on FPWIN GR7. Slot numberSlot numbers are decided by each installation position of units. They are counted from the unitclosest to the CPU unit.2 3 161CPU●●●●●● Display on the I/O map of FPWIN GR7Slot numbers can be confirmed in the “I/O map” dialog box of FPWIN GR7. Using slot numbers by user programsThe user program below is that for specifying the slot number.PMGET DT0U2R100UNITSEL U0U1S1 S2
