Replacing the rotary switch with a 'program-in-a-plug'
The UE410 FlexiSOFT from Sick is a DIN-rail mounted, software-based modular safety controller for applications that require more sophistication than basic safety relays but do not require the complexity of a full-scale safety PLC. The UE410 FlexiSOFT is a development of the well established UE410 Flexi Classic. Where the UE410 Flexi Classic was programmed by means of rotary switches, the Flexi Soft comes with a software configuration tool, which allows safety engineers to configure complex safety systems - from simple logic gates like AND, OR, etc, to more advanced functions such as safe on/off timers and set/reset function blocks.
Iain Smith, Product Specialist for Integration Technology at SICK, explains: "The UE410 Flexi Classic is designed for users who want to manipulate safety logic without going through PC software and this is still the best solution for customers not wanting to adopt a software safety solution. The UE410 FlexiSOFT units are 22.5mm wide, and programming is achieved through a small M8 connector port on the CPU from a serial cable connected to a PC's RS232 connector port. The program is in the plug. If the system needs replacing for any reason, you just take the plug out, put a new unit in and put the plug back in. You do not have to worry about re-programming or forming links between terminals."
The UE410 Flexi Soft series comprises a number of DIN-rail mounted units: a CPU control unit, eight single-channel safety input module, mixed eight input four output module, one dual-channel safety relay output module (2N/O) and a two dual-channel safety relay output module (4N/O). Diagnostic data can be obtained from the RS232 port on the main CPU, and diagnostic modules can interface to standard network topologies.
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