Modbus Poll
Modbus Poll is
a Modbus master simulator designed primarily to help
developers of Modbus slave devices or others that want to test and
simulate the Modbus protocol. With the multiple document interface you can
monitor several Modbus slaves and/or data areas at the same time. For each
window you simply specify the Modbus slave ID, function, address, size and
poll rate. You can read and write registers and coils from any window. If
you want to change a single register, simply double click the value. Or
you can change multiple registers/coils. Multiple data formats such
as float, double and long with word order swapping are available.
Exception errors are shown on the status
line.
If you are a slave developer you can
compose and send your own test strings in the "test center" and
check the result from the slave in hex numbers.
OLE Automation for interfacing with Visual
Basic, Excel etc. To interpret and show the Modbus data according to your
specific requirements. E.g. edit data in Excel and then transmit the data
to your slave device! Try the Excel example.xls installed with the program.
MODBUS POLL Technical Facts and
Features:
- OLE Automation means easy interface to
Visual Basic, use it almost like an ActiveX component. See
VBExample.vbp
- RTU Mode
- ASCII Mode
- Modbus TCP/IP
- Modbus UDP/IP
- Modbus RTU Over TCP/IP
- Read/write of up to 12
5 Registers
- Read/write of up to
2000
Inputs/Coils
- Test Center (Compose your own test
strings)
- Print and print preview
- Monitoring of serial data traffic
- Data logging to
a text file
- Data logging direct to Excel
- Context sensitive help
- 10 Display formats such as float, double
etc.
- Adjustable Address Base (0 or 1).
- Font and color selection.
- Broadcast (slave ID 0).
- Easy control of RS-485 converters with
RTS toggle.
SUPPORTED MODBUS FUNCTIONS:
- 01: Read coil status
- 02: Read input status
- 03: Read holding register
- 04: Read input registers
- 05: Force single coil
- 06: Preset single register
- 15: Force multiple coils
- 16: Preset multiple registers
- 22: Mask write register
- 23: Read/Write registers
Read the quick start guide here.
