Siemens S7-300/S7-400 STL Programming Reference Manual

About this manual

This document serves as a comprehensive reference guide for creating user programs using the Statement List (STL) programming language. It is designed for S7 programmers, operators, and maintenance personnel who possess general knowledge of automation technology and are familiar with STEP 7 software on Windows operating systems.

The manual covers a wide range of STL instructions categorized into sections such as bit logic, comparison, conversion, counter, data block, logical control, integer arithmetic, floating-point arithmetic, loading and transfer, program control, shift and rotate, timer, word logic, and accumulator instructions. It includes detailed syntax descriptions for each instruction along with programming examples. This manual is written in Chinese.

What's inside

• Bit Logic Instructions
• Comparison Instructions
• Conversion Instructions
• Counter Instructions
• Data Block Instructions
• Logical Control Instructions
• Integer Arithmetic Instructions

Frequently asked questions

What is the purpose of this manual?

This manual serves as a guide for creating user programs using the Statement List (STL) programming language.

Who is the intended audience for this manual?

The manual is intended for S7 programmers, operators, and maintenance or repair personnel.

What operating systems are required to use the associated PC workstations?

Users must be familiar with MS Windows 2000 Professional, MS Windows XP Professional, or MS Windows Server 2003.