(modbus is an industrial bus, which is the most commonly used protocol for data transmission in industrial control. It has RTU mode and ASCII mode, and most of them are RTU mode; this software is designed for RTU mode. A general test program, through which the data in the modbus address of the industrial field can be tested with a PDA. I have used it, and even the PLC works very well!
This document includes the following attachments:
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Book1.xls
Custom1
Custom2
ex1.frm
example1.csv
modbus1.mdb
modbusm.dll
ModSca1
ModScan32t
ModScan32.exe
MODSCAN32.HLP
ModScan32.tlb
ModScan32Ex.vbp
ModScan32Ex.vbw
ms32frm.cfg
oilp.bmp
otemp.bmp
ScanGuide.txt
speedo.bmp
tach.bmp
temp.bmp
volt.bmp
modscan....)