Field-Level Communication Using PROFIBUS
A robust real-time bus system connects distributed peripherals — such as operator terminals, drives, transmitters, I/O modules, remote I/O stations, and valves — to the automation systems (controllers) at the field level. What makes this communication unique:
Data Transfer
• Cyclic process data transmission
• Acyclic transfer of alarms, parameters and diagnostic information
• Simultaneous power supply for transmitters and actuators (PROFIBUS PA)
• High-speed communication with intelligent distributed I/O (PROFIBUS DP)
System Traits
• Straightforward, dependable and robust in hazardous and conventional areas
• Expandable online by adding dispersed components
• Vendor-independent device exchangeability within a profile family
• Interoperability of field devices from multiple vendors on one line
Advantages
SIMATIC PCS 7 makes end-to-end use of PROFIBUS's advantages:
✔ Minimal engineering, planning and commissioning costs
✔ Ideal distributed system architecture requiring little hardware and space
✔ Reduced field mounting, power supply, patching, wiring and distribution overhead
✔ Fast communication combined with precise measurement
✔ Device replaceability and interoperability via vendor-independent device descriptions
✔ Fast commissioning — no calibration work, quick loop tests, simple parameter assignment
✔ Improved diagnostics with bidirectional connection and rich information content
✔ Maximum life-cycle management via maintenance station diagnostics and status data
Operation & Process Automation Features
Numerous tools are available for line diagnostics, communication, and intelligent field device diagnostics. PROFIBUS is fully linked into the SIMATIC PCS 7 process control system's maintenance station and global asset management system. The following PROFIBUS functionalities are especially relevant to process automation:
• Integration of previously deployed HART devices
• IEC 61508 redundancy and safety-related communication via PROFIsafe up to SIL 3
• Daylight synchronisation
• Date and time stamping
PROFIBUS Transmission Systems
| Transmission System | Description |
|---|---|
| PROFIBUS DP - RS 485 | A straightforward, inexpensive electrical transmission method using two-wire shielding. |
| PROFIBUS DP - RS 485-iS | Intrinsically safe electrical transmission with a 1.5 Mbps rate for hazardous locations up to Ex Zone 1 or 21, using shielded two-wire cable. |
| PROFIBUS DP - Optical Fibre | Optical transmission using glass or plastic fiber-optic cable, for long-distance or high-volume data transfer in interference-prone environments. |
| PROFIBUS PA - MBP | Intrinsically safe transmission using a two-wire cable to power field devices and transmit digital data simultaneously, suitable for Ex Zones 0/1 and 20/21. |
Supply & Service Areas
Swastyprasad Automation supplies genuine Siemens SIMATIC PROFIBUS components with technical support across the following regions:
India
Goa, Mumbai, Pune, Nashik, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Jaipur, Chandigarh, Coimbatore, Thane, Surat, Vadodara
UAE
Dubai, Abu Dhabi, Sharjah, Ajman
Saudi Arabia
Riyadh, Jeddah, Dammam, Jubail
Thailand
Bangkok, Chonburi, Rayong
Indonesia
Jakarta, Surabaya, Batam
Why Choose Us for Siemens SIMATIC PROFIBUS?
✔ 100% Genuine Siemens Product — full DP and PA component range
✔ Technical selection guidance for DP/PA, RS485, RS485-iS, optical fibre and MBP
✔ Competitive pricing for bulk, EPC and OEM orders
✔ Trusted supplier, dealer, distributor and stockist
✔ Support across India, UAE, Saudi Arabia, Thailand and Indonesia
Get Genuine Siemens SIMATIC PROFIBUS Components
Looking for PROFIBUS DP or PA components, technical consultation, or bulk export inquiry? Contact our team for fast quotation and delivery across UAE, Saudi Arabia, Thailand, Indonesia, India and worldwide.
Get Best Price & Availability Call NowFrequently Asked Questions – Siemens SIMATIC PROFIBUS
PROFIBUS is a real-time bus system connecting distributed peripherals — operator terminals, drives, transmitters, I/O modules, remote I/O stations and valves — to automation controllers at the field level, transferring both cyclic process data and acyclic alarms, parameters and diagnostics.
PROFIBUS DP is designed for high-speed communication with intelligent distributed I/O, typically in discrete manufacturing. PROFIBUS PA allows simultaneous power supply and data transmission to field transmitters and actuators, and is used in process automation including hazardous areas.
Yes. PROFIBUS PA (MBP transmission) supports intrinsically safe operation for direct device connections up to Ex Zone 1 or 21, and for sensors/actuators up to Ex Zone 0 or 20. RS 485-iS also supports intrinsically safe operation up to Ex Zone 1 or 21.
Yes, PROFIBUS supports PROFIsafe, a safety communication profile usable up to SIL 3, alongside standard process data on the same bus.
Yes, PROFIBUS PA supports integration of previously deployed HART field devices, allowing existing instrumentation to be brought into a PROFIBUS-based control architecture.
From an authorized supplier, dealer, distributor and stockist like Swastyprasad Automation, with technical support and supply across India, UAE, Saudi Arabia, Thailand and Indonesia.
PROFIBUS DP supports RS 485 (standard two-wire shielded cable), RS 485-iS (intrinsically safe, up to 1.5 Mbps), and optical fibre for long-distance or high-interference environments.
Yes, PROFIBUS is designed for interoperability, allowing field devices from multiple vendors to coexist on a single line while maintaining vendor-independent device exchangeability within a profile family.
PROFIBUS remains widely deployed in existing plants and process automation, particularly PROFIBUS PA in hazardous areas. PROFINET (Industrial Ethernet) is the newer standard for higher-speed, Ethernet-based applications, and PROFIBUS component-based automation is aligned with the PROFINET standard.
Yes, we support supply and technical consultation across UAE, Saudi Arabia, Thailand and Indonesia in addition to India.
Also check our Know more about Siemens products and Siemens SIMATIC Industrial Ethernet.
