The best free modbus tcp slave simulator

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28 Display formats such as float, double etc.

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Test Center (Compose your own test strings).Using a simple control language you can simulate a Modbus slave measuring environment properties (e. Connect your Modbus masters to ModSlaveSim, instead of a real Modbus slave device, in order to test and configure the masters. OLE Automation for easy interface to Excel using Macro language VBA ModSlaveSim is a programmable simulator that enables realistic simulation of a single Modbus slave in its environment.MODBUS POLL Technical Facts and Features: Modbus Poll user manual Supported protocol variants: edit data in Excel and then transmit the data to your slave device! Try the Excel example.xlsm installed with the program.

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To interpret and show the Modbus data according to your specific requirements. OLE Automation for interfacing with Excel. 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. Multiple data formats such as float, double and long with word order swapping are available.Įxception errors are shown on the status line. Or you can change multiple registers/coils. If you want to change a single register, simply double click the value. You can read and write registers and coils from any window. For each window you simply specify the Modbus slave ID, function, address, size and poll rate. With the multiple document interface you can monitor several Modbus slaves and/or data areas at the same time. 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.

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