The Siemens SINUMERIK 840D sl user manual details system architecture, features, safety, programming, and hardware integration for CNC applications.
The SINUMERIK 840D sl is a modular, open and flexible CNC system that integrates the SINAMICS S120 drive and SIMATIC S7‑300 PLC. It combines CNC, HMI, PLC and drive functions in a single NCU/PCU unit, supporting distributed panels up to 100 m away.
The manual covers safety functions, programming languages, motion control, tool management, communication interfaces and supported motor types, providing operators and technicians with the information needed to install, program, operate and maintain the system. This manual is written in Chinese.
| Maximum distributed panels per NCU/PCU | 4 |
|---|---|
| Maximum distance between NCU and panels | 100 m |
| Number of way groups | 10 |
| Number of feed/spindle axes | 31 |
The system provides safety brake, safety stop and other safety functions such as safe area limits and protected zones.
Both synchronous and asynchronous motors are supported, including various Siemens motor families.
The controller supports IF‑ELSE‑ENDIF, WHILE, FOR, REPEAT‑LOOP and macro techniques in addition to DIN 66025 language.