#23 Modbus RS485 DWIN MASTER - DO DI - Discrete Output Coils / Input Contacts 0x01 , 0x02 , 0x05 

Read Discrete Inputs
Read/Write Discrete OUTPUT COILS
DO & DI testing includes a defined bit AREA 1 & AREA2 in DWIN.
Area 1 VP RANGE is 0x100 - 0x10F
Area 2 VP range is 0x110 - 0x11F
Check out the chart included to define VP address in 22.bin file.

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