Whose drives speak the most languages?

sinamics drives industrial communication

SINAMICS industrial communication

Not only are Siemens drives found in the most countries, they also play well with the widest array of industrial communications protocols – from AS-I to EtherNet/IP™ to USS – speaking all the languages of compatibility, flexibility and productivity.

SINAMICS communications

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The family of drives and the languages they speak.

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* Communications within the scope of Siemens Totally Integrated Automation (TIA)

modular vector
compact vector
for pumps, fans, compressors
components for higher-power










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* Communications within the scope of Siemens Totally Integrated Automation (TIA)

extra low voltage servo
medium-level servo
SINAMICS S120-combi
For machine tools


























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* Communications within the scope of Siemens Totally Integrated Automation (TIA)

V/Hz for basic motion
Gearmotor integrated V/Hz, vector
Vector for more complex applications
integrated servo motor / module
(communications from S120 CU)

























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* Communications within the scope of Siemens Totally Integrated Automation (TIA)

Robicon-W series
For municipal water / wastewater
High-performance cabinet modules
High performance regenerative



















Communications protocols within the scope of Siemens Totally Integrated Automation (TIA)

AS-Interface (Actuator Sensor Interface, ASi) is an industrial networking solution (physical layer, data access method and protocol) used in PLC, DCS and PC-based automation systems. It is designed for connecting simple field I/O devices (e.g. binary ON/OFF devices such as actuators, sensors, rotary encoders, analog inputs and outputs, push buttons, and valve position sensors) in discrete manufacturing and process applications using a single two-conductor cable.


AS-Interface is an 'open' technology supported by a multitude of automation equipment vendors. The AS-Interface has been an international standard according to IEC 62026-2 since 1999.

PROFIBUS (Process Field Bus) is a standard for fieldbus communication in automation technology and was first promoted in 1989 by BMBF (German department of education and research) and then used by Siemens. PROFIBUS is openly published as part of IEC 61158.


The world's most common field bus with more than 40 million installed nodes, as standard, PROFIBUS DP is the superior field bus protocol within Totally Integrated Automation (TIA). It ensures powerful and seamless communications between all automation components, including HMI (operator control and Visualization), control, drives, and I/O.

PROFINET is an advanced automation standard for ethernet based communication - with more than 4.5 million installed nodes, it is one of the fastest growing fieldbus protocols world wide.  Designed for controlling equipment and collecting data from industrial systems, with a particular strength in delivering data under tight time constraints (on the order of 1ms or less), PROFINET simultaneously transmits, for example, operating and diagnostics data to higher-level systems using standard IT mechanisms (TCP/IP) so it can be easily integrated into an IT factory environment.


Other industrial communications protocols

BACnet is a communications protocol for Building Automation and Control (BAC) networks that leverage the ASHRAE, ANSI, and ISO 16484-5 standard protocol.


BACnet was designed to allow communication of building automation and control systems for applications such as heating, ventilating, and air-conditioning control (HVAC), lighting control, access control, and fire detection systems and their associated equipment. The BACnet protocol provides mechanisms for computerized building automation devices to exchange information, regardless of the particular building service they perform.

CAN (Control Area Network) bus was developed in 1983 by Bosch for networking control devices in automobiles. CANopen is a communication protocol used mainly in automation and networking in complex devices. Comprising higher-layer protocols and profile specifications, CANopen has been developed as a standardized embedded network with highly flexible configuration capabilities. It was designed originally for motion-oriented machine control systems, such as handling systems. Today it is used in various application fields, such as medical equipment, off-road vehicles, maritime electronics, railway applications, or building automation.There are profiles for device classes such as CiA402 for drives and application profiles such as CiA417 for elevator controls.

EtherNet/IP (IP = Industrial Protocol) is an industrial network protocol that adapts Common Industrial Protocol to standard Ethernet. EtherNet/IP is one of the leading industrial protocols in the United States and is widely used in a range of industries including factory, hybrid and process. The EtherNet/IP and CIP technologies are managed by ODVA, Inc., a global trade and standards development organization founded in 1995 with over 300 corporate members.


EtherNet/IP uses both of the most widely deployed collections of Ethernet standards –the Internet Protocol suite and IEEE 802.3 – to define the features and functions for its transport, network, data link and physical layers. EtherNet/IP performs at level session and above (level 5, 6 and 7) of the OSI model. CIP uses its object-oriented design to provide EtherNet/IP with the services and device profiles needed for real-time control applications and to promote consistent implementation of automation functions across a diverse ecosystem of products. In addition, EtherNet/IP adapts key elements of Ethernet’s standard capabilities and services to the CIP object model framework, such as the User Datagram Protocol (UDP), which EtherNet/IP uses to transport I/O messages.


Ethernet/IP was estimated to have about 30% share of the industrial ethernet market in 2010 and 2018.

Modbus is a serial communications protocol published by Modicon in 1979 for use with its programmable logic controllers (PLCs). It is still extensively used. The  Modbus protocol is a communication protocol based on a Master-Slave or Client/Server architecture.


Modbus RTU (Remote Terminal Unit) is the most common implementation available for Modbus. It transmits data in serial communication and makes use of a compact, binary representation of the data for protocol communication.


Modbus TCP/IP is modbus that runs over TCP (Transmission Control Protocol) and IP (Internet Protocol)  basically the transport protocol for the internet. When Modbus information is sent using these protocols, the data is passed to TCP where additional information is attached and given to IP. IP then places the data in a packet (or datagram) and transmits it.

FLN P1 is a communications system developed by Siemens for building technology ssytems. P1 is an asynchronous master-slave communication between what is known as a Field Cabinet (master) and the FLN devices (slaves). FLN stands for Floor Level Network. The master individually addresses the various slaves. A slave responds only if the master addresses it. Communication between the slaves is not possible.


A Field Cabinet can have several FLN ports. Up to 32 FLN devices (slaves) can be connected to each FLN port.

USS® (Universal Serial Interface) protocol is a simple serial data transfer protocol, defined by Siemens AG, which is fully tailored to the requirements of drive technology.  The USS protocol defines an access technique according to the master- slave principle for communications via a serial bus. This also includes, as sub-quantity, point-to-point connection.


Essential features of USS protocol are:


  • It supports a multi-point-capable coupling, e.g. EIA RS 485 hardware
  • Master-slave access technique
  • Single master system
  • Max. 32 nodes (max. 31 slaves)
  • Simple, reliable telegram frames
  • Easy to implement
  • Operation with either variable or fixed telegram lengths.