In the study and engineering practice of Siemens TIA Portal, numerous abbreviations are prevalent in software operations, hardware configurations, programming logic, communication protocols, and other scenarios. Below is a list of core abbreviations categorized by function, including their full Chinese names, full English names, and key explanations for quick reference and practical application:
1. Core Software and Platform Related
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| TIA | 全集成自动化 | Totally Integrated Automation | The core concept of Siemens industrial automation, TIA Portal is the unified software platform to realize this concept. |
| Portal | 门户 / 平台 | Portal | The core identifier of the TIA Portal software (e.g., TIA Portal V18), integrating programming, configuration, debugging, and other functions. |
| STEP 7 | 梯形图 / 功能块编程软件 | Step 7 | The core module for PLC programming in the TIA Portal platform (replacing the traditional standalone STEP 7 software), supporting LAD/FBD/STL languages. |
| WinCC | 视窗控制中心 | Windows Control Center | The module used for HMI (Human-Machine Interface) configuration in the TIA Portal platform, supporting screen design, data monitoring, alarm management, etc. |
| PLCSIM | PLC 仿真器 | PLC Simulation | A built-in virtual PLC tool in TIA Portal that allows offline simulation of program execution without hardware for debugging logic. |
| TIA Openness | TIA 开放性接口 | TIA Openness | The API interface of TIA Portal, supporting secondary development in languages like Python and C# (e.g., automatic program generation, batch configuration modification). |
2. Hardware Related (PLC / Modules / Devices)
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| PLC | 可编程逻辑控制器 | Programmable Logic Controller | The core control unit (e.g., S7-1200/S7-1500 series), the main object of programming and configuration in TIA Portal. |
| CPU | 中央处理单元 | Central Processing Unit | The core module of the PLC (e.g., CPU 1511C, CPU 1214C), responsible for executing programs and processing I/O signals. |
| I/O | 输入 / 输出 | Input/Output | Refers to the input and output signals of the PLC (e.g., digital I/O, analog I/O) or corresponding modules. |
| DI | 数字量输入 | Digital Input | Modules that receive digital signals from switches, sensors, etc. (e.g., buttons, proximity switches) (e.g., SM 1221 DI 8x24VDC). |
| DO | 数字量输出 | Digital Output | Modules that control actuators and other digital signals (e.g., relays, indicator lights) (e.g., SM 1222 DO 8x24VDC). |
| AI | 模拟量输入 | Analog Input | Modules that receive continuous signals (e.g., temperature, pressure sensors 4-20mA signals) (e.g., SM 1231 AI 4x13bit). |
| AO | 模拟量输出 | Analog Output | Modules that output continuous signals (e.g., frequency control 0-10V signals) (e.g., SM 1232 AO 2x14bit). |
| SM | 信号模块 | Signal Module | Modules used to expand I/O (e.g., DI/DO/AI/AO modules), directly inserted into the CPU or signal board. |
| SB | 信号板 | Signal Board | Small expansion modules (e.g., SB 1221 DI 1x24VDC) used to supplement insufficient I/O ports on the CPU (smaller in size). |
| ET 200 | 分布式 I/O 站 | ET 200 Series | Siemens distributed I/O system (e.g., ET 200SP/ET 200MP), communicating with the CPU via Profinet/Profibus for remote I/O expansion. |
| IM | 接口模块 | Interface Module | Modules used to connect distributed I/O stations with the CPU (e.g., IM 155-6 PN ST), responsible for communication protocol conversion. |
| PS | 电源模块 | Power Supply Module | Provides stable power to the PLC system (e.g., PS 1207 24V/5A), supporting wide voltage input. |
3. Core Programming Concepts and Elements
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| OB | 组织块 | Organization Block | The core execution unit of the PLC program, determining the program execution order (e.g., OB1 main loop block, OB35 time interrupt block, OB100 startup block). |
| FB | 功能块 | Function Block | Reusable program blocks with background data blocks (DB), supporting parameterization (e.g., FB100 motor control function block), data can be retained. |
| FC | 功能 | Function | Reusable program blocks without background data blocks, data is not retained (e.g., FC10 addition and subtraction function), data must be passed through parameters. |
| DB | 数据块 | Data Block | A container for storing program data, divided into Global DB (accessible by all blocks) and Instance DB (used only by corresponding FB). |
| Instance DB | 背景数据块 | Instance Data Block | A data block bound to FB, storing FB’s input/output/internal variables (e.g., DB100 is the background DB of FB100). |
| SFC | 系统功能 | System Function | Built-in system-level functions in Siemens (e.g., SFC1 read system time, SFC31 data block transfer), callable directly without programming. |
| SFB | 系统功能块 | System Function Block | Built-in system-level function blocks (e.g., SFB33 timer, SFB41 counter), require allocation of background DB for use. |
| UDT | 用户定义数据类型 | User-Defined Data Type | Custom composite data types (e.g., encapsulating motor status and parameters as UDT_Motor), simplifying data management. |
| TAG | 变量 | Tag | Identifiers marking data addresses in TIA Portal (e.g., Tag_Button1 corresponds to I0.0), supporting symbolic naming (enhancing program readability). |
| LAD | 梯形图 | Ladder Diagram | An intuitive graphical programming language simulating relay circuits (suitable for electrical engineers to start). |
| FBD | 功能块图 | Function Block Diagram | A graphical programming language centered on function blocks (suitable for complex logic and mathematical operations). |
| STL | 语句表 | Statement List | Text-based assembly language (suitable for efficient programming and low-level logic), TIA Portal only supports S7-300/400 compatible mode. |
| SCL | 结构化控制语言 | Structured Control Language | A text-based programming language similar to C (suitable for complex algorithms and loop logic), primarily promoted for S7-1200/1500. |
4. Communication Protocols and Network Related
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| PN | 过程现场网络 | Profinet | The industrial Ethernet protocol primarily promoted by Siemens (high real-time performance, supports distributed I/O), the default communication protocol in TIA Portal. |
| PB | 过程现场总线 | Profibus | The traditional industrial bus protocol (e.g., Profibus-DP for communication between PLC and distributed I/O), compatible and supported by TIA Portal. |
| Modbus TCP | Modbus 以太网协议 | Modbus TCP/IP | A general industrial Ethernet protocol (based on TCP/IP), supported by TIA Portal through “Open User Communication” or dedicated function blocks. |
| OPC UA | 开放式平台通信统一架构 | Open Platform Communications Unified Architecture | A cross-platform, cross-vendor industrial communication protocol (supports data exchange, remote monitoring), TIA Portal can achieve data sharing through OPC UA server/client. |
| TCP/IP | 传输控制协议 / 网际协议 | Transmission Control Protocol/Internet Protocol | The basic network protocol, Profinet, Modbus TCP, etc., are all based on TCP/IP. |
| IP | 网际协议地址 | Internet Protocol Address | The unique identifier of a device on the network (e.g., PLC’s IP address 192.168.0.1), needs to be configured in TIA Portal. |
| Subnet | 子网 | Subnet | A subdivision unit of the network (e.g., subnet mask 255.255.255.0), ensuring normal communication between devices in the same subnet. |
| DNS | 域名系统 | Domain Name System | An optional configuration used to access devices by domain name (e.g., plc1200.local), simplifying network management. |
5. Data Types and Instruction Related
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| BOOL | 布尔型 | Boolean | A 1-bit data type (0 = false / 1 = true), used to represent switch states (e.g., buttons, indicator lights). |
| INT | 整数型 | Integer | A 16-bit signed integer (range: -32768~32767), used for counting and storing small values. |
| DINT | 双整数型 | Double Integer | A 32-bit signed integer (range: -2147483648~2147483647), used for large range counting and calculations. |
| REAL | 实数型（浮点数） | Real | A 32-bit floating-point number (range: ±3.4e-38~±3.4e38), used for continuous quantity calculations such as temperature and pressure. |
| STRING | 字符串型 | String | Used to store text data (e.g., device names, alarm information), TIA Portal supports STRING (default 80 characters) and WSTRING (Unicode). |
| TIMER | 定时器 | Timer | Time control instructions (e.g., TON on-delay, TOF off-delay), S7-1200/1500 supports IEC timers. |
| COUNTER | 计数器 | Counter | Counting instructions (e.g., CTU count up, CTD count down, CTUD count up/down), supports preset and current value storage. |
| MOVE | 数据传送指令 | Move | The core instruction (e.g., MOVE_I, MOVE_REAL), used for data copying between different addresses. |
| ADD | 加法指令 | Add | Arithmetic instructions (e.g., ADD_I integer addition, ADD_REAL real number addition), supports multiple data types. |
| CMP | 比较指令 | Compare | Logical comparison instructions (e.g., CMP_I_EQ equals, CMP_REAL_GT greater than), outputs Boolean results. |
6. Other Common Abbreviations
| Abbreviation | Full Chinese Name | Full English Name | Key Explanation |
|---|---|---|---|
| HMI | 人机界面 | Human Machine Interface | Devices used for operator interaction with PLC (e.g., touch screens), the TIA Portal WinCC module is responsible for configuration. |
| SCADA | 数据采集与监控系统 | Supervisory Control and Data Acquisition | Upper-level monitoring system based on HMI and PLC (e.g., WinCC SCADA), supporting centralized monitoring of multiple devices. |
| OEE | 设备综合效率 | Overall Equipment Efficiency | Equipment efficiency metric in industrial production, can be calculated through TIA Portal programs and displayed on HMI. |
| PID | 比例 – 积分 – 微分控制 | Proportional-Integral-Derivative | Closed-loop control algorithm (e.g., temperature, pressure regulation), implemented in TIA Portal through FB41 (S7-300/400) or PID_Temp (S7-1200/1500) function blocks. |
| LED | 发光二极管 | Light-Emitting Diode | Status indicator lights on PLC/modules (e.g., RUN light, ERROR light), used for fault diagnosis. |
| RUN | 运行模式 | Run Mode | The working mode of the PLC (running the program), corresponding to STOP (stop mode), STARTUP (startup mode). |
