1771-6.5.132, PLC-5 DeviceNet Scanner User Manual

D-4 Data Map ExampleIn 1-slot addressing mode eight bits are available for discrete inputmapping, as shown below.Note: 1 word = 2 bytes1 byte = 8 bitsInput Image Table23 22 21 20 19 18 17 162D 1D(for discrete input data bits)Bit numbering in the data table is rightto left, beginning with zero.15 0Module Status39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24word 0word 1Input Data Bits from Channel A Devicesbits 24-79word 2word 3In 1-slot addressing, the first eight bitsafter the module status word are used forthe input image table. This table is fordiscrete input bits. Data bits for nodeaddresses 1-8 are mapped to this area inascending numeric order according tonode address.957981 802D 1Dword 4word 5Channel Anode #1node #2to node #62Device Input1 byte1 byteS DS DNote:D = data bitS = status bit1D & 1S = data andstatus bits for node #12D & 2S = data andstatus bits for node #2143159Input Data Bits from Channel B Devicesbits 80-143Status Bits from Channel A Devicesbits 144-206145 1442S 1Sword 6word 7word 8word 9word 10word 11Channel Bnode #11 byte206word 12S D222208 2072S1Sword 13node #21 byteS DStatus Bits from Channel B Devicesbits 207-270word 14word 15to node #62270word 16Publication 1771-6.5.132 - June 2000