“Technical Specifications” and manual-design updated Legal notices: All contents included in this manual are protected by the terms of use and copyrights of motrona GmbH. Any reproduction, modification, usage or publication in other electronic and printed media as well as in the internet requires prior written authorization by motrona GmbH.
1. Safety Instructions and Responsibility 1.1 General Safety Instructions This operation manual is a significant component of the unit and includes important rules and hints about the installation, function and usage. Non-observance can result in damage and/or impairment of the functions to the unit or the machine or even in injury to persons using the equipment! Please read the following instructions carefully before operating the device and observe all safety and warning instructions! Keep the manual for later use.
For placement, wiring, environmental conditions as well as shielding and earthing/grounding of the supply lines the general standards of industrial automation industry and the specific shielding instructions of the manufacturer are valid. Please find all respective hints and rules on www.motrona.com/download.html --> “[General EMC Rules for Wiring, Screening and Earthing]”.
2. Introduction The PB340 / PB306 / PB541 series has been designed for display and/or remote preset of single parameters or registers (e.g. display of actual position or preset of line speed) in systems using a PROFIBUS-DP network. These units operate as PROFIBUS-DP slaves according to EN 50 170.
3. Block Diagram and Terminal Assignment PB340, PB541 PB306, PB541 ENTER 3 4 5 Display BCD Data Potential RS485 Power Separation Driver Supply 5,0 V Processor and Power 10...30 V DC 3,3 V Profibus Prof ibus controller DGND 1 2 3 4 5 6 7 8...
3.1. PROFIBUS connector pin assignment: Pin: Signal: Function: Screen Screen / Earth connection n. c. – RxD/TxD-P Data + CNTR-P (RTS) Request To Send DGND Reference Potential (Ground) Power supply + 5 V / 50 mA n. c. – RxD/TxD-N Data - n.
4. Transmission Baud Rate and Unit Address The unit does not require a Baud rate preset because the baud rate of the network will be automatically recognized while the communication is starting up. All PROFIBUS-DP baud rates from 9.6 kbit/s to 12 Mbit/s are supported. Positions 2…7 of the DIL switch select the unit address, value range 3…126.
After successful start-up the data communication begins. Both input and output data are transmitted as signed 32-bit data. Received output data (PB340, PB541) will be displayed immediately. When the display value range of -99999 … 999999 is exceeded, “------” will appear in the display.
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The actual communication state of the slave unit is indicated by display (PB340, PB541) or by the front LED (PB306): Display: LED: PROFIBUS-DP state: Device state: (PB340, PB541) (PB306) “ ..” Power_on initialization “ - - - - - - ”...
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