Vers. 062721 75
settings. It is possible but not recommended to change these parameters via MODBUS. To
modify holding registers via MODBUS, follow these steps:
• Write the value “1” to address 7790 to enter “Remote Programming Mode” using
MODBUS function code 06 “write single register”
• Change the desired holding register values using MODBUS function codes 06 or 16
• Write the value “2” to address 7790 to apply the changes and exit “Remote
Programming Mode”
The full MODBUS map can be found at https://kolverusa.com/products-list/16-Industry-40-
KDUCER-Series
MODBUS TCP code examples and literature
We provide sample projects illustrating K-DUCER screwdriver control built by Kolver for
various devices, as well as generic MODBUS TCP guides and literature produced by the
manufacturers of these devices at https://kolverusa.com/products-list/16-Industry-40-
KDUCER-Series
We also recommend searching youtube for a multitude of freely available videos
illustrating how to implement MODBUS TCP communication with various control systems.
Rockwell, Allen Bradley, MicroPLC, ControlLogix, CompactLogix, Siemens, SIMATIC,
Universal Robots, PolyScope, are all trademarks of their respective corporations and are not
affiliated with Kolver.