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Programmable logic controller for rail vehicles

The rail technology provider Luetze Transportation presented the Lion MicroPLC logic module for decentralized applications on rail vehicles. An IEC 61131-3 development environment as well as a CAN interface are available.

The product is suitable for installation of decentralized logic units and can be used, for example, to monitor and control doors, lights, or public announcement systems on rail vehicles (Source: Luetze)

The company engineers specifically designed the device for rail vehicle manufacturers for whom it would not be viable to invest in large control technology or modular control units, they explained. The Lion MicroPLC (programmable logic controller) offers interfaces via CAN, Ethernet TCP/IP, UDP, and EIA-232. EIA-232 can be configured to EIA-485 or EIA-422 as required. An USB interface will be available shortly. The input/output module has a total of 16 digital and 2 analog inputs and 8 digital, as well as 1 analog output. Power is supplied via the on-board 24-V power network.

The product is suitable for a range of tasks on rail vehicles, wherever decentralized logic is sufficient or even beneficial. Possible decentralized application options include controlling and monitoring of doors, lights, public announcement systems on rail vehicles, toilets, compressed air, sanding systems or pressure sensors. Here, the module can be used to program specific instructions independently of the general control unit. One advantage of this is that if changes need to be made, the entire control unit does not need to be reprogrammed. Also, entire applications, e.g. a complete toilet, can be produced and supplied by rail technology suppliers in a plug-and-play model including a MicroPLC control unit.

Rail-compatible technology

Internally, all processes of the product can be controlled via the real-time operating systems, Soft-SPS and Procon OS. To allow programming, the IEC 61131-3-conform Multiprog Express development environment is included with the purchase of the component. Programs can be filed in the shape of instruction lists (AWL), as structured text (ST), a contact plan (KOP), or a function block diagram (FBS).

The module is suitable for rail applications and fulfils all norms with regards to vibration and shock loads, and EMC safety and fire behavior according to EN 50155, EN 50121-3-2, EN 50124-1, EN 61373, EN 45545-2 and the EMV06. The IP20-tested product can be operated permanently in a temperature range of -40 °C to +70 °C. It is installed on the hat rail.


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Luetze Transportation