The importance of security in today’s connected world
In recent times hydraulic and pneumatic systems have become much more sophisticated, comprising a selection of components that enable system design dreams to be turned into a reality, says Mark Fairhurst, technical director at BHR Group.
Traditionally, fluid power systems have concentrated on power transmission; with hydraulic systems mainly made up of control valves, power unit, hydraulic actuators and fluid monitoring equipment, and pneumatics systems comprising a power unit, fluid conditioning, actuators and control valves. Today, fluid power systems are not just about power transmission, but more about motion control, with a focus on moving things in a more precise and predictable fashion. This can involve electro-hydraulic or electro-pneumatic actuation, which in turn is part of a network by which many of the individual components within the system are able to communicate with each other.
The communications process need not only be autonomous and operating within the particular system in question; indeed the system, or components within the system, can also communicate with a much wider network. Also, the plant controller or maintenance engineer no longer needs to be in such regular close proximity to the plant and equipment in order to control and monitor its operation. Through the use of sensors and wireless technology plant control and monitoring need not be so confined to within the walls of a physical building and could feasibly be undertaken from anywhere in the world.
So, with all this increased motion control and communications know-how many modern fluid power systems have grown to become part of a much wider network. This wider network scenario is, in essence, very much part of the Industry 4.0 revolution whereby communication reaches wider and accessibility of information to and from these systems becomes much easier.
The overriding benefits of having easy access of information, often in real-time or near real-time, are many. For example, sensors within a system can automatically inform a maintenance engineer when a component or larger piece of equipment has malfunctioned or is due for replacement by sending an alert to his or her smartphone or tablet PC. The maintenance engineer can also remotely interrogate particular equipment within the system in order to, for example, change its function, hours of operation, schedule maintenance procedures, or investigate its operational history and which personnel operated certain types of equipment during specific periods.
However, with all these benefits and more to be had from today’s integrated high-tech motion control systems – whether from an operational or maintenance and overhaul perspective – certain important choices and decisions need to be made, and some of the most important of these revolve around security. Before we start running we have got to learn to walk, and this basic statement of common sense can also be applied figuratively to modern motion control systems. Careful thought needs to be given about who should be allowed to access the system, or parts of the system, and be able to make decisions in terms of operating or maintaining or making changes to the system and the wider network.
Moreover, making this type of decision regarding individuals’ access to, and mandate to control, the system is just the start. Only certain people may have been given the authority to do certain things, or have access to certain types of information, but without careful control and monitoring of communication protocols, information kept within the system could be open to infiltration or malicious abuse by other parties.
In this regard, I believe the biggest concern is that if people were able to maliciously intercept these communication systems it may not be long before a serious injury or even a fatality results – it could be due to motion equipment in a bottling plant becoming unstable, it could be the result of robotic arms flailing in precarious ways, it could be due to a shock from a power transmission system, and so on. In the wake of a serious injury or death, the subsequent court case could then set a precedent whereby a whole new level of cyber policing is put in place – deemed necessary to bring the situation under control. If this high level of policing were to become a reality, this could potentially stop the growth in further development and deployment of Industry 4.0-related systems technology in its tracks.
Therefore, understanding how robust a company’s data communication systems are is a very important consideration. Some systems are likely to be more resilient than others. For example, in a manufacturing plant a radio-frequency (RF) wireless transmission system could prove to be more reliable and robust than Wi-Fi. Wi-Fi is more open to being intercepted or corrupted at any level. So, although we all want change for the better there also comes a time to reflect on what the implications could be if we change too rapidly without thinking about the possible consequences.
It is also worth ensuring that any computer software used as part of the system has a reputation for being secure, and that proven encryption technology is deployed to make it as hard as possible for malicious hacking to take place. Additionally, companies should make sure that immediate IT-related help and advice is at hand in the event of such a security breach occurring. And from a system design perspective, I believe it is important that systems are thoroughly beta- tested ‘in the real world’ in order to monitor their performance and resistance to security abuses.
The world is becoming an increasingly unpredictable environment, and so the issue of security risk should not be taken lightly. It is therefore all the more important that we should develop efficient, reliable and robust motion control systems in order for them to conform to the best ideals of Industry 4.0 without risk of compromise. Industry 4.0 is already here and the trend is likely to gather even greater momentum over the coming months and years.
Thankfully these security issues are being addressed by information network providers and the like who have realised that the consumer internet and existing wireless platforms are not fully suitable for industry. In fact, such is the speed of change that I advise those interested to keep a watchful eye on new government guidelines and news from trade associations such as the British Fluid Power Association (BFPA). Let’s not let poor levels of security risk compromising the major improvements in efficiency, convenience and reliability that this type of technology can offer.

BFPA
Other News from BFPA

Latest news about Hydraulic components
- Fast fastening in industrial applications without increasing costs
- Eaton launches cost-competitive Winner PTFE hoses for demanding applications
- Flexicon extends its liquid-tight conduit system range with UL and CSA certification
- Helping OEMs bring new machine features to market
- Eaton launches a new Multiplate system enabling faster and simpler connectivity for Flat Face Series Quick Disconnect Couplings
- Moog Modular Electrohydrostatic Actuation System (EAS) combines the best of two worlds
- Particle contamination monitor performs test procedure in under 90 seconds
- Bonomi UK launches new website and digital catalogue
- Eaton’s new CMT mobile valve section increases design flexibility
- Very high speed solenoid valves increase semiconductor production output
- Engineering Expertise from Eaton Hydraulics UK keeps the blades turning
- Dispense pumps meet the growing fluidic challenges of evolving medical-IVD instruments
- Elesa launches new FH modular coolant hose system
- Air bleed orifice improves efficiencies in hydraulic systems
- Essentra Components produces free guide to hydraulic hose protection
- Hycrocam hydraulic bolt tensioners remove uncertainty from couplings
- Bürkert solenoid valve tackles dezincification and water hammer
- Thermoplastic hydraulic hoses and fittings designed to work together, enabling safe and effective fluid conveyance
- 5 facts about hydraulics that may surprise you
- Money saving fallacy of hose re-ending
- Miniature solenoid valve offers high flow and low leakage
- Moog and Voith to form strategic partnership
- Charting the right course to efficiency in the marine industry
- Greater flexibility for high pressure applications
- Hydraulic handbook is packed with useful data
- Filtermist to demonstrate how it helps workers ‘Go Home Healthy’
- Elesa level monitoring accessories and labelling provision simplify hydraulic systems
- VHS appointed Bosch Rexroth integrator
- Absorbing water from hydroscopic oils
- Eaton Hydraulics invests in state-of-the-art training facility
- Solenoid valve key to brake innovation
- Stauff demonstrates innovations in hydraulic components and accessories at Fluid Power & Systems 2018
- Hose selection is critical to minimising fire risk
- Latching solenoid valve saves energy
- VHS Hydraulic Components acquires Nielson Hydraulics
- Hose combines high pressure with long cycle life
- Hydraulics will run and run with proper servicing
- Plugs are designed to seal cross port passageways
- Lee Products publishes 9th edition of EFS handbook
- A match made in heaven
- Bosch Rexroth Hydraulics Roadshow is hailed a huge success
- New ATEX hydraulic accessories from Elesa
- Elesa breather caps and level indicators hit the mark for Sarum Hydraulics
- Best practice is vital in hydraulic fluid selection
- In-line wash flow safety screens take filtration to a higher level
- How to control hydraulic flow rates more efficiently
- Staying safe with hydraulic hoses
- Bespoke test rig installation completed
- Lee restrictors keep the electricity on
- Miniature inert solenoid pumps offer flexibility
- Gas charging test kit product range
- The risks of outdated separators
- Controllers for precision hydraulic motion
- Manufacturer keeps UK hydraulics industry alive in Singapore
- Tom Parker introduces the FasTest range
- Pressure Hydraulics Cork recognised as Ireland’s first Bosch Rexroth Authorised Training Centre
- Liquid cooling for enclosures
- Slots versus holes improve flow through safety screens
- Ultra-compact, energy-efficient solenoid valves save space and reduce weight
- Brammer announces new partnership
- Hydraulic Components catalogue
- Hydraulic hose assembly
- Reliable tube connection system for extreme conditions
- The show goes on for RSC thanks to hydraulic cylinders
- Trio of success caps off growth year for hydraulics specialist
- Top ten tips – oil analysis
- Vestas choose Bosch Rexroth for hydraulic power unit
- Connectors: clean break, flat face or double shut off?
- Report highlights maintenance failings in UK manufacturing
- The hydraulic fluid 'laboratory in a suitcase'
- Ultra-miniature solenoid valves save space and use less energy
- Robust, lightweight PEEK safety screens
- Strainers provide coarse level filtration without pressure drop
- Big savings in oil filtration for aerospace
- Investment to meet growing demand
- Failure to conduct oil checks a "major cause" of hydraulic failure
- New connector for sterile processes
- Miniature inert solenoid valve protects sensitive fluids
- Miniature, chemically inert stepper dispense pump
- Strainers provide coarse level filtration without pressure drop
- Liquid cooling for enclosures
- Solenoid valves - there's one for every occasion
- Industry 4.0 - concepts and practical solutions
- Miniature medical grade check valve ideal for plastic manifolds
- BFPA and BCAS form UK Motion Control Alliance
- A 'hands-on' opportunity in Telford
- Miniature servo actuators bring high power density to Formula 1
- Stauff UK and GR Motosport unveil Connect Academy
- High pressure flow restrictors for critical applications
- Moog delivers tyre coupled simulation system to Mazda
- Neilson Hydraulics goes back to new with Bosch Rexroth
- Piedrafita selects Moog for fatigue test system
- Bosch Rexroth launches oil analysis service to reduce machine downtime
- Oil contamination identified as a major cause of machinery failure
- Miniature burst plugs provide over-pressure protection
- New gear pump design offers near silent forklift operation
- Eaton's low-temperature hydraulic hose serves mining and construction
- Hydraulics
- Bosch Rexroth opens new service and training centre in Wakefield
- Accurate positioning and adjustment of equipment
- Tom Parker brings new range to the UK market
- Precision microhydraulic components solve critical problems of size and weight
- Miniature electro-fluidic systems from Lee Products
- Bosch Rexroth gives legs to walking robot
- A short guide to selecting quick release fluid connectors
- Bosch Rexroth expands into filtration market
- Electro fluid systems guide
- New EFS handbook published by Lee Products
- UK sales and service partner for Sauer Danfoss
- NACE compliant safety screens for extreme applications
- Ultra-fine safety screens are robust
- Fluid Control
- Safe fluid power
- Bright future ahead as Bosch Rexroth breaks ground in Wakefield
- Configure hydraulic solutions
- Inert solenoid pump sets new standards of design flexibility
- Gas springs operate in conjunction with electro-hydraulic lifting system
- The business benefits of upgrading hydraulic systems
- Equipment for use in hazardous areas
- The essential companion throughout hydraulics and pneumatics industries
- Hydraulics for subsea operations
- Bosch Rexroth completes Hägglunds Acquisition
- Safety holds the key to improved business performance
- Compact piston type open circuit pumps
- Hydraulics distribution
- Independent, highly dynamic linear axis
- Multiple pumps with reduced overall length
- Eaton's hydraulics help free the Chilean miners
- Dampers key in support vessel safety system
- Fluid connectors
- Keeping your fluids clean
- Atomising nozzles deliver precise spray pattern
- Parker plays crucial role in military projects
- Hydroscopic breathers boost performance
- New hydraulic power packs
- Going with the flow on green energy
- Oil level indicators in brass and stainless steel
- Replacement filters enhance profitability
- Edbro success in tilt test trials
- Parker distributor BSP Hydraulics expands into marine sector
- Fluid control catalogue highlights Burkert's wide range
- Micro nozzles for delicate washdown applications
- Compact, light valve for high pressure charging
- Hydraulics and electronics combine in stored energy management system
- New handbook for hydraulic and pneumatic components
- An engineering guide to miniature fluid control components
- Connector approved to key hydraulic standard
- Couplings for medical applications
- BFPA hosts major standards meeting
- Microfluidics
- Miniature orifice saves weight and space
- Hydraulic Fluids
- High speed solenoid valves for micro dispensing
- Highly accurate screened orifice for medical applications
- Leak-free plugs handle high pressures
- Lightweight valves ideal for OEM flow switching
- Miniature solenoid valve sets new standards
- High pressure cartridge screens block rogue contaminants
- Micro inert valve needs less space and uses less power
- Micro-dispense nozzles for optimum system flexibility
- Miniature check valve for harsh duty applications
- Miniature insert orifice saves weight and space
- Miniature pumps help make a smaller machine, better
- Miniature relief valve ensures zero leakage
- Miniature shuttle valve ideal for hydraulic isolation
- Power generation Chek valves are field serviceable
- VHS solenoid valve manifold ideal for flow injection tasks
- Zero leak check valves suit critical flow control systems
- Control two circuits from just one hydraulic source
- End caps protect and isolate
- Rugged safety screens handle twice the pressure
- Cleaner, faster, smarter, safer drum connections
- Innovative connectors simplify seal test line construction
- Steel cam couplings offer quick release
- Cylinders designed to boost productivity
- New 90 litre bi-directional poppet valves
- Logic element combines flexibility with performance
- New premises for Hydrastore marks expansion
- When is a repair not a real repair
- Reducing the hazards of analysis
- Hydraulic power for innovative milking systems
- Parker brings particle analysis out of the lab
- Pump design offers big benefits in stationary hydraulic applications
- Helping to minimise environmental damage
- Hydraulics performs in the leisure industry
- That sinking feeling - with complete digital accuracy
- Two-stage breather cap
- High performance filters
- How to capitalise from your component breakdowns
- Bosch Rexroth lands its biggest ever order
- Parker Hannifin launches its cylinder repair service
- Taking sides on suction and return filtration
- Hydraulic rams and block cylinders
- Needle type flow control valves
- Absolutely leak-free larger couplings
- High pressure plug for venting applications
- Compact valve protects in the event of sudden failure
- Leak-free connections speed endoscope reprocessing
- Bosch Rexroth takes electrohydraulics to the next level
- Valves meet needs for higher flow rates
- The smallest solenoid valve in the world
- Couplings make fluid transfer simple and safe
- Proportional flow control valve
- Hydraulics power two Iraqi bascule bridges
- Multi-function screw-in valve