Modbus Scanner: Perfect to Discover and Test Modbus
Download the Modbus Scanner FREE!! Or,
for more information, CONTACT US!
What is the CAS Modbus Scanner?
CAS Modbus Scanner is a utility to 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, HEX, Uint16, Int16, Uint32, Int32, and Float32.
This utility can also discover Modbus devices on your network if you do not know their address. It works by testing every address, function, length, and offset to check for exceptions or responses.
FEATURES
- Can read; coil status (0xxxx), input status(2xxxx), input registers (3xxxx), and holding registers (4xxxx)
- Data is viewable in Binary, HEX, Uint16, Int16, Uint32, Int32, and Float32
- Discover devices on your network
- Multiple connections
- Tested with 100s of 3rd party Modbus devices
- Works with RS232, RS485 and TCP
- 100% Free to use, no registration required
- Easy user interface
Downloads
Please Read the License Agreement before downloading this utility.
.png)
Modbus Scanner Quick user Guide
- Download the CAS Modbus Scanner from the executable above
- After the installation, please run the application.
- Click "Discover". Choose Modbus RTU or TCP. If TCP, enter the IP address of the Modbus TCP device you are polling.
- Locate 'Device" These numbers are the Node ID's that you will poll for. If you know the Node ID, you can scale down the numbers. For example, if you know the Node ID is 1, you can use Start: 1 and End: 2
- Notice the Device and Function Code column. The Device is the Node ID. The Function Code is the
Modbus data type (see below). Use your mouse to right-click on the correct Device and Function Code
that you are trying to poll. Then click on "Add to Task List". You'll get a pop-up letting you know
that the request was added.
For example, if you want to poll 40001 on Node ID 1, right-click Device ID 1 and Function Code 3. - FC01 - 0xxxx - Coil - Binary Output
- FC02 - 1xxxx - Discrete Input - Binary Input
- FC03 - 4xxxx - Holding Register - Analog Output
- FC04 - 3xxxx - Analog Input
- Now we can poll for those data points on the selected Node ID and Function Code!
- Finally, click "Poll". Doing this will poll for the points selected in the highlighted task. This function will show you the offsets, standard addresses (Modbus Register), and the values.
Modbus Function Code (Data Types)
Modbus Function Code (Data Types)
Locate the IP address and Device ID (1, in this case) and right-click underneath where it says, 'Read Holding registers starting at 40001'. Select 'Edit Task'. Next, choose the Offset and Length to locate the point(s) you are looking for poll. After you've selected the correct offset and length, click 'Edit Request'
Note: Function allows you to change the function code.
Manuals, Datasheets and Resources
Modbus
Scanner Manual
Modbus for Field Technicians (Free!)
Learning about Modbus? Want to update your Modbus knowledge? This free EBook will guide you through basic and advanced Modbus topics.
you can download the Modbus for Field Technicians for free from our website.
APPLICATION and System Requirements
Use the CAS Modbus Scanner to find the correct port settings and the correct slave address. The tool automates the process of trying all the combinations and reports the results.
The tool works for RS232 and RS485 by allowing you to search for a single device or multiple slaves. To connect to a RS485 network from your laptop you simply need a USB-to-485 converter.
- Windows 2000, XP, Vista, Windows 7 (32bit or 64bit), Windows 8 (32bit or 64bit), or Windows 10(32bit or 64bit)
- 10mb of free space
- Modbus RTU requires an RS485 port. You will need to purchase a USB to RS485 converter (ACON U-01)
Did you know that we also service Modbus Integration Solutions?
Chipkin has Modbus solutions for almost every situation. We are experts in Modbus RTU/TCP communication and carry a wide variety of Modbus products:
Thanks for choosing Chipkin's protocol gateways, data clients, and integration services to meet your building and industrial automation requirements!
Chipkin™ is a building and industrial automation protocol expert. We develop, configure, install and support gateways (protocol converters), data loggers and remote monitor and controlling applications. Founded in October 2000, Chipkin provides expert solutions for converting BACnet®, Modbus®, and LonWorks®—to name just a few—and enabling interfaces for HVAC, fire, siren, intercom, lighting, transportation and fuel systems. The high-quality products we offer (including those from other vendors) interface with Simplex™, Notifier™, McQuay™, GE™ and many others—so you can rest assured that we will select the most appropriate solution for your application.
With Chipkin you are buying a solution. Our configuration expertise in this field combined with free BACnet and other tools ensure your success; and our customer support via phone, e-mail, and remote desktop tools means that we're there when you need us. Chipkin is a small responsive company, and we live or die by the quality of our service—and with offices in two-time zones—we can provide support when you need it. Give us a call now!
Customer Support
Chipkin is proud to provide support for the products we sell. For technical support, sales, and customer service, please contact us at 1 (866) 383-1657