This manual provides detailed descriptions of all instructions for the HollySys LK large programmable controller.
The LK Large Programmable Controller instruction manual explains the complete instruction set of the PLC and is intended for engineers and programmers who are familiar with PLC concepts and the PowerPro programming software. It covers the instruction system overview, operands, data types, basic and extended instructions, as well as library management.
The document is organized into chapters that introduce the definition and classification of instructions, describe the standard and extended instruction libraries, and provide appendices with quick‑reference tables, IEC standard instruction lists, and guidance on selecting the appropriate PowerPro library version for each controller model. This manual is written in Chinese.
| Default library path for PowerPro V4.3.1B | Backup Library\V4.3.0B |
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Set the default path to "InstallationPath\Backup Library\V4.3.0B" and add the library files from that directory.