700M HFID 6-2-15
4
Communication and Interface ............................................................................................. 144
Analog and Digital Interface ............................................................................................ 145
Serial Interface................................................................................................................ 149
AK Protocol .................................................................................................................... 150
Instruction Command ............................................................................................................ 152
Error Handling ....................................................................................................................... 154
General AK Requirements ..................................................................................................... 155
Scan Commands .................................................................................................................... 157
Control Commands ................................................................................................................ 168
Configuration Commands ...................................................................................................... 172
Modbus Protocol ............................................................................................................. 177
MBAP Description ................................................................................................................ 177
MBAP Header Description .................................................................................................... 178
Modbus Command Function Codes ...................................................................................... 179
Modbus Map .......................................................................................................................... 196
01H Single-Read Coil ......................................................................................................... 196
05H Write Single Coil ........................................................................................................ 198
03H Read Floating Point .................................................................................................... 199
16H Write Floating Point .................................................................................................... 202
Warranty Statement ........................................................................................................... 204