PU 104-x Intelligent PLC module with I/O and ethernet interface - West Control Solutions - #1

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PU 104 Intelligent PLC module with CAN/Ethernet bridge Powerful CPU CAN, CAL/CAN open CAN/Ethernet bridge 16 digital inputs 16 digital inputs/outputs, individual configuration v v PMA PROFILE The PU 104 is part of the P-open series and provides compact PLC functions for automation applications requiring distributed intelligence. It also combines CAN with Ethernet, enabling Ethernet PCs to access CAN field busses directly, without an additional CAN interface. Apart from real-time processing, the unit features 16 on-board digital inputs, and 16 digital I/O which can be configured individually as inputs or outputs. For communication and programming purposes, the PU 104 is fitted with a complete CAN/CAN master/slave implementation, plus a CANopen master implementation as a library for IEC 1131 and ’C’. With its compact dimensions of 124 x 170 mm, and a depth of 85,5 mm, the PU 104 is ideally suited for mounting close to the process in de-centralized systems. The housing is designed for clip-on mounting to standard DIN rails. System extensions are easily implemented by connecting additional I/O modules to the PU 104. The connections are made with cables which plug into the module’s extension bus (E-bus). The resulting complete PLC system is linked via the CANbus. Selective I/O energization Supply of the inputs/outputs is provided via two terminals at the signal level. The supply voltage is 24 VDC. The I/O’s can be divided into 6 groups, each with its own supply. This enables the I/O of a specific group to be disabled by means of an external switching device. Convenient field connections Electrical wiring from the machine or process is taken directly to the terminal strips at top and bottom of the modules. The terminal strips are of the plug-in type, allowing system pre-wiring as well as fast module exchange. Furthermore, the following alternatives are available for the terminal strips: x Screw terminals x Screwless spring-clamp terminals x Crimp terminals. Inputs/outputs are connected using the 3-wire principle. Front panel LEDs indicate the signal status of every I/O, and the module’s operational status. The LED positions are directly asso- ciated with the corresponding I/O’s. Inscription labels on the terminal strips allow clear identification of each I/O. CAN/Ethernet bridge Together with its PLC functions, the PU 104 provides a „bridge“ between CAN-CAL and Ethernet TCP/IP networks. For linking into the Ethernet, the PU 104 is fitted with a 10BaseT and a 10Base2 interface. In this way, PCs with 32-bitWindows-based applications and Ethernet network modules, have direct access to CAN fieldbus networks. The bridge function is supported by an ANSI-C library in the form of a 32-bitWindows DLL. Programming with standard tools Programming of the PU 104 is done with a PC and aWindows-based (95 or NT) software tool. The universal programming tool is used for all of PMA’s P-open modules. Depending on your application, the programming software lets you choose the most convenient method: Instruction List (IL), Ladder Diagram (LD), Function Block Diagram (FBD), or the high-level language ’C’. The first three options are according to the international standard IEC 1131-3. If necessary, we provide full support during development of your own application-specific programs.