- Vibration Monitoring
- PLC & I/O Cards
- Industrial Communications
- Automation Accessories
- Controllers & Data Acquisition
- AC Drives
- Isolator & Barrier
- Industrial Computers
- Encoders
- Safety Switches & Guard Locking
- Automation Software
- HMI Displays
- Motor Soft Starters
- Servo Drives
- CCTV & Security
- Robotics
- Pneumatic Cylinders
- Machine Vision
Automation & Control
Automation and control equipment at Seven Star LLC covers the hardware between the field instrument and the operator screen: PLC and DCS modules, safety controllers, drives, industrial networks, machinery protection systems and hazardous-area interface devices. The category lists items from Siemens, Schneider Electric, ABB, Allen-Bradley, HIMA and Yokogawa, with vibration monitoring from Bently Nevada, Brüel & Kjær and Shinkawa. Seven Star is an independent supplier based in Muscat and is the agency for Winsonic industrial networking and display products in Oman and the GCC.
Read more about Automation & Control 
Category guide
About Automation & Control
Automation and control equipment at Seven Star LLC covers the hardware between the field instrument and the operator screen: PLC and DCS modules, safety controllers, drives, industrial networks, machinery protection systems and hazardous-area interface devices. The category lists items from Siemens, Schneider Electric, ABB, Allen-Bradley, HIMA and Yokogawa, with vibration monitoring from Bently Nevada, Brüel & Kjær and Shinkawa. Seven Star is an independent supplier based in Muscat and is the agency for Winsonic industrial networking and display products in Oman and the GCC.
Sub-categories in Automation & Control
The main sub-categories fall into five working groups.
- Logic and loop control: PLC & I/O Cards, Controllers & Data Acquisition and Automation Software hold CPUs, safety PLCs, remote I/O, single-loop controllers, recorders and engineering licenses.
- Motors and motion: AC Drives and Motor Soft Starters control speed and starting current, Encoders give position feedback, and Robotics covers articulated arms.
- Networks and operator interface: Industrial Communications, Industrial Computers, HMI Displays, Machine Vision and CCTV & Security cover switches, routers, panel PCs, operator panels, code readers and Ex cameras.
- Machinery protection: Vibration Monitoring holds proximity probes, accelerometers, monitor racks and balancing equipment.
- Field interface: Isolator & Barrier and Automation Accessories hold intrinsic safety isolators, surge protection, Ex control stations, beacons, safety relays and backup batteries.
Replacement modules for running control systems
Most inquiries in this category are for a single card or module in a system that has been running for years: a SIMATIC ET 200SP input module, a Bently Nevada 3500 relay module, a Foxboro field control processor. In that situation the order code alone is often not enough. Hardware revision, firmware version and, for safety systems, the certified version of the module decide if the replacement will be accepted by the existing rack and engineering software. We check the part number and configuration against the manufacturer documentation before quoting, and where a module has been discontinued we propose the manufacturer’s successor and point out what changes in wiring or software.
What to send with an automation inquiry
Send the complete order code from the nameplate, the hardware and firmware revision if shown, the quantity, and the system the part goes into. For drives and soft starters add motor power, supply voltage and load type. For hazardous-area devices add the zone and the required protection type. The manufacturer’s datasheet and the certificates the manufacturer issues, such as the declaration of conformity or the Ex certificate, are provided on request.
What to include in your inquiry
These details let us quote the right item the first time.
- Full part number or order code
- Hardware and firmware revision, when replacing a part
- Control system or PLC family it must work with
- New installation or replacement of an obsolete part
- Quantity and required delivery date
Missing some of them? Send what you have. A nameplate photo or an old part number is enough to start.
Top brands in Automation & Control
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Most viewed in Automation & Control
Guides and articles
All articles →
Bently Nevada 3500 Module Replacement Checklist: Part Numbers, Compatibility, Configuration and Safe Hot-Swap Practice
Hazardous Area Classification Explained: Zones, Gas Groups, Temperature Classes and Choosing Ex Equipment
Bently Nevada 3500 vs 3300 XL: How the Monitor Rack and the Proximitor Transducer System Work Together
Request a Quote for Automation & Control
Looking for a specific model, part number or brand in Automation & Control? Send us your requirements and quantities. Seven Star LLC sources genuine industrial equipment for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
Frequently Asked Questions
How can I confirm that a replacement I/O or monitor module will work in my existing rack?
Match the full order code, including every suffix, then compare the hardware and firmware revision printed on the old module. Many platforms accept a newer revision in an older rack, but some need a matching firmware level or an updated engineering software version. Send us the nameplate photo and the system type, and we check the combination against the manufacturer's compatibility documentation before quoting.
What is the practical difference between a PLC, a DCS and a safety system?
A PLC is a standalone controller, typically used for machines, packages and discrete logic. A DCS ties many controllers, I/O stations and operator stations into one engineered plant-wide system for continuous processes. A safety instrumented system is kept separate from both and uses controllers and I/O certified to IEC 61508 for a stated SIL, so that a fault in the control system cannot disable the trip function.
The module I need has been discontinued. What can you do?
First we confirm the status in the manufacturer's product lifecycle information, because parts are often reported obsolete when only one variant has been withdrawn. If the part is no longer produced we propose the manufacturer's named successor and list the differences in terminals, dimensions, configuration software and firmware, so your engineers can judge the work needed before ordering.
Which documents are supplied with automation and control hardware?
On request we provide the manufacturer's datasheet and the certificates the manufacturer issues for that item. Depending on the product this can be a declaration of conformity, an ATEX or IECEx certificate for hazardous-area devices, a functional safety certificate for SIL-rated controllers and relays, and a certificate of origin. Tell us at inquiry stage which documents your project specification requires.
Why is vibration monitoring listed under automation and control?
Machinery protection systems are wired and engineered like any other control system. Proximity probes and accelerometers feed monitor modules in a rack, the rack drives trip relays into the shutdown system, and the data goes to the DCS over a serial or Ethernet link. Keeping them here lets you find the sensors, monitors and communication modules for one machine train in the same place.
What information do you need to quote an automation part?
The full manufacturer order code, quantity, and hardware or firmware revision where it applies. For drives, add motor power, supply voltage, enclosure rating and fieldbus option. For Ex devices, add zone, gas group and temperature class. For software, state the version and license type. If you only have an old part, a clear photo of its nameplate is enough for us to identify it.