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ABB i-bus
®
KNX
Planning and application
12.2.9
Troubleshooting
To minimize potential sources of error, there are certain principles you should follow:
Installation:
Configuration:
There are Modbus tools for simulating and testing the communication between client and server. Example:
https://www.modbustools.com/index.html
Other support tools, e.g. Engineering Guides, FAQs, etc. are available on our website
Note about navigation in the PDF: Key combination
'Alt + left arrow' jumps to the previous view/page
•
Check cable length, polarity, termination resistors, etc.
The server manual is available.
•
•
The baud rate and parity must be the same for all the devices in the Modbus system.
Each Modbus server is assigned a unique address.
•
•
Server data points (function codes, register numbers, format, etc.) are correctly entered in the
gateway in accordance with the server specification.
•
General server information such as processing times were taken into account in the gateway
configuration.
Product Manual | EN | MG/S 11.100.1.1 | 9AKK108467A5941 Rev. B 65
www.abb.com/knx.
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