About

About CAS Modbus Scanner:

CAS Modbus Scanner is a free utility that allows communication with your Modbus devices. You can communicate through both TCP and Serial with your TCP/RTU Modbus devices, as the tool allows multiple connections running at the same time.

Reading:

With the Modbus Scanner you can retrieve coils, inputs, holding registers, and input registers from a Modbus enabled device. Values retrieved from the device can be viewed in many different formats including Binary, Hexadecimal, Uint16, Int16, Uint32, Int32, and Float32.

Writing:

You can easily schedule write tasks for writing into your Modbus device’s coils and holding registers.

System Requirements:

  • Windows 2000, XP (and above)
  • 10MB of free space
  • Serial/USB port (USB port would require a USB to Serial converter cable depending on your device)

Frequently Asked Questions (FAQ):

How do I add a new connection?

You can add a new connection by going to File>Settings>Add Task and clicking the Add Connection button.

I’m trying to add a device/request/write and I keep getting a “Please select a connection/device” error. What do I do?

When adding a device, you must highlight the connection you want to add the device under from the list of connections. The same goes for adding new requests or writes; you must highlight the device you want to add to first.

Where can I find a log of my session after I’ve closed my connections?

The log.txt file can be found in your base installation folder.

How can I suggest a new feature that I’d like to see in future updates?

You can suggest new features by e-mailing us directly. We will take all suggestions into consideration.