1.5 Communication
1.5.1 Information and Communication
Growth in the world of automation is increasingly based on information technology. Having reformed hierarchies, structures and flows in the entire office
world, use of information technology opens for a similar restructuring of industrial sectors ranging from process and manufacturing industries to logistics
and building automation.
Devices capability of communication and continuous transparent channels for information are indispensable in automation concepts of the future.
IT is an evident means for optimisation of system processes, leading to improved exploitation of energy, materials and investment.
Industrial communication systems are a key function in this respect.
Cell level
Programmable controllers such as PLC and IPC communicate at cell level. Large data packets and numerous powerful communication functions provide
information flow. Smooth integration into company-wide communication systems, such as Intranet and Internet via TCP/IP and Ethernet are important
requirements.
Field level
Distributed peripherals such as I/O modules, measuring transducers, drive units, valves and operator terminals communicate with the automation systems
via an efficient, real-time communication system at field level. Transmission of process data is performed in cycles, while alarms, parameters and diagnostic
data have to be transmitted acyclically if necessary.
Sensor/actuator level
Binary signals from sensors and actuators are transmitted purely cyclically via bus communication.
1.5.2 Profibus
Profibus is a vendor-independent, open field bus standard for use in a wide range of applications in manufacturing and process automation. Vendor-
independence and openness are ensured by the international standards EN 50170, EN 50254 and IEC 61158.
Profibus communicates between devices from different manufacturers without specific interface adjustments and can be used for both high-speed time
critical applications and complex communication tasks. Due to ongoing technical developments, Profibus is widely acknowledged as the leading industrial
communication system of the future.
More than 2,000 products from approximately 250 Profibus vendors are available today. More than 6.5 million devices representing a huge variety of
products are installed and successfully used in more than 500,000 applications in manufacturing and process automation.
Danfoss Drives solution offers a cost optimal Profibus solution
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MCT-10 software tool for access via standard PC
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Simple two-wire connection
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A universal, globally accepted product
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Compliance with the international standard EN 50170
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Communication speed 12 Mbaud
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Access to drive master file makes planning easy
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Fulfilment of PROFIDRIVE guideline
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Integrated solution
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All frequency converters with Profibus are certified by the Profibus organisation
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Danfoss frequency converters support Profibus DP V1
1 The Decentral Concept
VLT
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Decentral FCD 300 Design Guide
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MG.90.S1.02 - VLT
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