Data acquisition
thumb drives are unsuitable for such a life and industrial devices, some of which are tested to military standards, are used.
What is an ‘industrial’ rMd? Most contain industry standard silicon such as EEPROM or NOR flash memory that is accessible through the SPI or I2C communications protocol. Alternatively, an industrial RMD might contain NAND flash and interface electrically as if it were an SD or MicroSD card. Or the RMD might contain USB flash memory and interface via that communication protocol. From a software development point of
view, interfacing with an industrial RMD is the same as if it were a commercial device. Systems and hardware engineers though need to consider device form factor as that is what makes an industrial RMD suitable for use in harsh environments. Most industrial RMDs are of a solid
overmoulded construction and are made from highly durable composites that protect the embedded memory from harsh environment influences, such as those cited above. The memory is also better protected from electrostatic discharge. The durable construction makes industrial
RMDs virtually crush-proof, which is ideal if there is a risk of the device being trodden on or driven over. Indeed, some devices – such as Datakey RUGGEDrive memory tokens, made by US-based ATEK Access Technologies - have
been put through their paces in the field; and there are videos on YouTube showing devices subjected to ice, fine-dust and mud, and even driven over by a tracked vehicle. In all cases the devices could still be read. The electrical contacts on an industrial RMD are
different too (see figure 2). They are on both sides of the device meaning, unlike a USB thumb drive or SD card, the device can be inserted either way up; a great convenience in the field. Durability and reliability in the field are also
provided through the receptable into which the RMD fits. Most commercial USB devices are rated for up to 1,500 insertion-removal cycles, before contact wear might start to compromise the electrical connection. Industrial RMDs are rated for up to 100,000 cycles in some cases. This higher figure also reflects how industrial
RMDs cope with mechanical shocks and high vibration levels, and devices are available that are certified to military vibration test standard MIL-STD 810F, Test Method 514.5. In addition, receptacles are available that are rated to IP65 or IP67, which means they are suitable for use on the exterior of a cabinet that is exposed to the elements. In summary, because of their form factor,
commercial RMDs are unsuitable for most applications outside of the office or home. Industrial RMDs are far more rugged and durable. They are also far more secure;.
Nexus Industrial Memory
www.nexusindustrialmemory.com
A
OperatiOns COntrOl sOftware with user- CentriC flexible mOdel
VEVA has announced that it will be making its Operations Control solutions available as a single
subscription for the first time. This redefines the industrial software experience, going beyond HMI and SCADA, enabling industrial organisations of all sizes to develop collaborative workforces, scale effectively, and optimise operations for agility and efficiency. From IIoT architectures and cloud-driven
remote edge management to multi-site supervisory control, AVEVA Operations Control software will be available via a flexible user-centric model, through the AVEVA Flex Subscription programme. AVEVA Operations Control offers an
infinite range of possibilities for companies to connect operations and workers via the cloud, web and mobile to drive efficiency through collaboration and standardisation. It delivers supervisory, visualisation, collaboration, and analytics software in a single combined subscription providing unlimited access to actionable information. Every team, whether on the plant floor, in the control room, or operating across the enterprise, is empowered to do more, in collaborative alignment.
AVEVA
www.aveva.com
PROVIDING SOLUTIONS IN CALIBRATION WORLDWIDE
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