As a result, these products are available at a considerably lower cost, offering end customers greater freedom when selecting a supplier. This is why alternative COTS systems free of  'vendor lock-ins' are increasingly coming to the fore.

Operating systems for COTS controllers are based on globally available standard programming languages pursuant to IEC 61131 and provide interfaces to all important communication protocols such as Ethernet TCP/UDP, RS485, RS422, RS232 or CAN. Communication is via established protocols and COTS safety controls are certified to CENELEC standards EN 50126, 50128 and 50129 for use up to maximum safety level SIL 4 and are available in Hima’s HIMax or HIMatrix solutions