EnOcean PTM200C Pushbutton Transmitter User Manual PTM 200

EnOcean GmbH Pushbutton Transmitter PTM 200

User Manual

Pushbutton Transmitter Device 315 MHz PTM 200C User Manual V1.01 July 2007
Revision History The following major modifications and improvements have been made to the first version of this document (User Manual PTM 200, V1.0): No Major Changes V1.01 Note added in chapter 1.4: Movement of energy bows must not be limited by mounted rockers Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany www.enocean.com, info@enocean.com, phone ++49 (89) 6734 6890 © EnOcean GmbH All Rights Reserved Important! This information describes the type of component and shall not be considered as assured characteristics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the EnOcean website: http://www.enocean.com. As far as patents or other rights of third parties are concerned, liability is only assumed for devices, not for the described applications, processes and circuits. EnOcean does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to workmanship. Devices or systems containing RF components must meet the essential requirements of the local legal authorities. The approval requirements described in this document are of best knowledge without any warranty. The devices must not be used in any relation with equipment that supports, directly or indirectly, human health or life or with applications that can result in danger for people, animals or real value. Components of the devices are considered and should be disposed of as hazardous waste. Local government regulations are to be observed. Packing: Please use the recycling operators known to you. By agreement we will take packing material back if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or that we are not obliged to accept, we shall have to invoice you for any costs incurred. ©EnOcean GmbH, W. Heller Page 2 of 19 PTM 200C User Manual V1.01
Table of Contents Revision History _________________________________________________________________________ 2 Table of Contents________________________________________________________________________ 3 1. GENERAL DESCRIPTION________________________________________________________________ 4 1.1 Functional Principle _________________________________________________________________ 4 1.2 Typical Applications_________________________________________________________________ 5 1.3 Features Overview __________________________________________________________________ 5 1.4 Mechanical Interface________________________________________________________________ 5 1.5 Environmental Conditions __________________________________________________________ 9 1.6 Ordering Information _______________________________________________________________ 9 2. FUNCTIONAL DESCRIPTION __________________________________________________________ 10 2.1 Block Diagram ______________________________________________________________________ 10 2.2 Contact Nipples Designation_______________________________________________________ 11 2.3 PTM 200C Radio Telegram _________________________________________________________ 12 3. APPLICATIONS INFORMATION _______________________________________________________ 14 3.1 Laying the antenna_________________________________________________________________ 14 3.2 Construction of application specific Switch Rockers _____________________________ 15 3.3 Device Mounting ___________________________________________________________________ 15 3.4 Transmission Range _______________________________________________________________ 16 3.5 FCC/IC Approval Requirements ___________________________________________________ 17 4. DEVELOPMENT TOOLS_________________________________________________________________ 18 4.1 Evaluation Kit EVA 105C ___________________________________________________________ 18 4.2 Field Intensity Meter EPM 100C (available soon) ________________________________ 18 5. Patent protection ______________________________________________________________________ 19 ©EnOcean GmbH, W. Heller Page 3 of 19 PTM 200C User Manual V1.01
1. GENERAL DESCRIPTION The radio transmitter device PTM 200C from EnOcean enables the implementation of wireless remote controls without batteries. Power is provided by a built-in electro-dynamic power generator. The PTM 200C device serves the 315 MHz air interface protocol of EnOcean. Together with the receiver device RCM 130C, this device can be easily integrated in operation and control units for the implementation of different application specific system solutions. (2) Contact nipplesfor switch rocker identification (1) Energy bow on both device sides Rotation axis for pushbuttons or switch rocker Figure 1: Electro-dynamic powered radio transmitter device PTM 200C 1.1 Functional Principle A common electro-dynamic energy transducer is actuated by a bow (1), which can be pushed from outside the device by an appropriate push button or switch rocker. When the energy bow is pushed down, electrical energy is created and an RF telegram is transmitted including a 32-bit device ID. Releasing the energy bow generates different telegram data, so every PTM telegram contains the information that the bow was pressed or released. “Long” or “Short” push button operation (the time between pushing and releasing the pushbutton) can be easily detected by the receiver. By doing that, applications such as dimming control or blinds control including slat action are simple to implement. In addition, the PTM telegram transmits the operating status of the contact nipples (2) when pressing the bow. This enables the identification of up to 2 appropriate switch rockers or up to 4 pushbuttons. ©EnOcean GmbH, W. Heller Page 4 of 19 PTM 200C User Manual V1.01
1.2 Typical Applications • Building installation • Industrial automation • Consumer electronics Key applications are wall-mounted flat rocker switches with 1 or 2 rockers, as well as handheld remote controls with up to 4 single pushbuttons. Because the RF transmitters are self-powered (no batteries), maintenance-free RF systems are possible. 1.3 Features Overview Power supply: ............................................................. Electro-dynamic Power Generator (power generation by rocker operation) Frequency / transmission power:....................... 315.0 MHz / typ. 3dBm at antenna input Modulation type / data rate: ................................................................. ASK / 125 kbps Antenna:........................................................external whip antenna 26.8 cm, ø1.3±0.1mm Transmission range: ..........................................up to 200 m free field, up to 30m indoor Telegram packet length (sub-telegram):................................................ 0.7 ms +/-5% No. of (redundant) packets:................................... 3 – 5 (depending on residual energy), 3 packets within about 20 ms, delay effected at random Number of channels:................................................ 2 channels with 4 action states each (upper/lower contact nipple is pressed/released) Telegram type: ........................................................................................RPS of type 2 (allows interpretation of operating two buttons simultaneously) Device identifier: ............................................ individual 32-bit ID (factory programmed) 1.4 Mechanical Interface Device dimensions: ................................................................ 40.0 x 40.0 x 11.2*) mm *) Height without label Device weight: .............................................................................................20 g ± 1g Energy bow travel / operating force: ...................................... 1.8 mm / approx. 7 N *) *) at room temperature, only one energy bow may be actuated at the same time! Restoring force at energy bow: .................................................................. 0.5N to 4N For the correct function of the application, the specified minimal restoring force of 0.5N must be considered! Number of operations: ...... typ 50.000 actuations tested according to VDE 0632 / EN 60669 Cover material: .................................................................................. Hostaform (POM) Energy bow material:............................................................................ PBT (50% GV) ©EnOcean GmbH, W. Heller Page 5 of 19 PTM 200C User Manual V1.01
Energy Bow Stopper Figure 2: PTM 200C without antenna, tilted view (including rocker catwalks) 1) this catwalks are not needed when using one single rocker only 2) dimensions of rocker part Figure 3: PTM 200C without antenna, top view (note cut A, B and C marking) ©EnOcean GmbH, W. Heller Page 6 of 19 PTM 200C User Manual V1.01
Figure 4: PTM 200C without antenna, cut A 2) dimensions of rocker part Figure 5: PTM 200C without antenna, cut B and C ©EnOcean GmbH, W. Heller Page 7 of 19 PTM 200C User Manual V1.01
antenna labeling area Hatched areas: support planes Figure 6: PTM 200C with antenna, rear view ©EnOcean GmbH, W. Heller Page 8 of 19 PTM 200C User Manual V1.01
2) dimensions of rocker part Figure 7 and 8: PTM 200C without antenna, side view If the rocker is not mounted on the rotation axis of PTM200C several tolerances have to be considered! The measure from support plane to top of the energy bow is 7.70 mm +/- 0.3 mm! The movement of the energy bow must not be limited by mounted rockers! 1.5 Environmental Conditions Operating temperature: ..................................................................... -25 up to +65 °C Storage temperature: ........................................................................ -25 up to +65 °C Humidity:............................................................................................0 % to 95 % r.h. 1.6 Ordering Information Type EnOcean Ordering Code PTM 200C S3031-A200 rotary mounting plane support plane press bow to stopper rocker tilted to 5.4 degrees (corresponds to 1.8 mm energy bow travel) catwalks of switch rocker ©EnOcean GmbH, W. Heller Page 9 of 19 PTM 200C User Manual V1.01
2. FUNCTIONAL DESCRIPTION 2.1 Block Diagram ProcessorHFContact NipplesEnergyBowPowerConverterDataDC PowerPushed/ReleasedAntNSProcessorHFContact NipplesEnergyBowPowerConverterDataDC PowerPushed/ReleasedAntNSNS Figure 9: Block diagram of PTM 200C Energy Bow / Power Generator Converts pressure on the energy bow into electrical energy. Power Converter Electronic converter unit for generating the device DC power supply Processor Converts the contact nipples’ status and pushed/released data from the power generator into a reliable and energy-efficient serial telegram structure. HF transmitter Sends the data in the form of a series of short radio signals. ©EnOcean GmbH, W. Heller Page 10 of 19 PTM 200C User Manual V1.01
2.2 Contact Nipples Designation With 4 contact nipples, the PTM 200C offers 2 channels with 4 action states each (upper/lower nipple is pressed/released when activating the energy bow). The nipples’ designation is as follows: OIBACHANNELSTATEOIBACHANNELSTATE Figure 10: Contact nipple designation Radio signals of the PTM 200C device are event-controlled (energy bow is pressed/released) with contact nipple code (channel/state) and unique device identification (fixed 32-bit ID). When operating more than one nipple at the same time, note that PTM 200C sends multiple-button code combinations: • N-message: One or two contact nipples have been pressed when activating the energy generator Æ Message with nipple code and pressed/released event status of the energy bow is sent. • U-message: No contact nipple was pressed when activating the energy generator, or 3 or 4 nipples have been pressed Æ Message with pressed/released event status of the energy bow is sent and the information if either none or more than two nipples have been pressed. Note that it can’t be differentiated if 3 or if 4 nipples have been pressed. Note: Due to the mechanical hysteresis of the energy bow, in most rocker switch device implementations, pressing the rocker sends an N-message and releasing the rocker sends a U-message! ©EnOcean GmbH, W. Heller Page 11 of 19 PTM 200C User Manual V1.01
2.3 PTM 200C Radio Telegram For the transmission of the telemetric signals, EnOcean has defined a new dynamic radio data telegram that is adapted to the individual application. It is optimized to the essential features of energy autarkic radio sensors: • Minimal energy demand • Possibility of operating hundred of senders within the same radio cell • Maximum transmission reliability • Wide transmission range • Easy extensibility • Suitable for uni- and bi-directional communication • Flexibility for adaptation of different data structures and data quantities • Data encryption option 2.3.1 Frequency range The EnOcean PTM200C operates at 315.0 MHz. 2.3.2 Modulation process As modulation process, EnOcean uses incoherent amplitude modulation (ASK). Digital amplitude modulation enables the implementation of very efficient energy-saving transmitters because only the “1”-bits are transferred. At the same interference signal level, the transmission security of the alternative FSK method is identical to that of the ASK method . 2.3.3 Transmission timing The transmission timing of the radio device PTM 200C has been developed to avoid possible collisions with data packages of other EnOcean transmitters as well as disturbances from the environment. With each transmission cycle, at least three identical subtelegrams are transmitted. The transmission of a subtelegram lasts approximately 0.7 ms. To optimize data security, each telegram is repeated twice within about 20 ms, whereas the delay between the second and the third transmission burst is effected at random. If some residual energy is available after transmission of three subtelegrams, up to 2 further subtelegrams are sent. Nominal values: 0...7,5ms at random 5 ms 10 ms t Figure 11: PTM 200C radio timing ©EnOcean GmbH, W. Heller Page 12 of 19 PTM 200C User Manual V1.01
2.3.4 Reliable radio transmission within systems operating many sensors The very short telegrams of EnOcean transmitters enable the operating of a large number of transmitters within the same radio cell; the error rate caused by telegram collisions remains extremely low. Statistically viewed, the transmission reliability is still greater than 99.99% in the case of 100 radio sensors that transmit once every minute. This means that even large office buildings and also huge industrial facilities can be equipped with a large number of sensors of this kind of radio technology. Figure 12: Probability of transmission failure caused by radio data collision for EnOcean light switch transmitter PTM 200C ©EnOcean GmbH, W. Heller Page 13 of 19 PTM 200C User Manual V1.01
3. APPLICATIONS INFORMATION 3.1 Laying the antenna For best performance the antenna cable should be layed as shown in the figure below. OIBAOIBA~ 102mm~ 42mm~ 63mm > 25mmOIBAOIBAOIBAOIBA~ 102mm~ 42mm~ 63mm > 25mmFigure 13: Laying the antenna Important note: o The distance between antenna foot point and antenna end must be > 25mm o The antenna area should be maximized o The antenna should be placed at the same height above the ground plane as the rotation axis for the switch rocker (see example below) ©EnOcean GmbH, W. Heller Page 14 of 19 PTM 200C User Manual V1.01
Figure 13: Example of a well suited antenna 3.2 Construction of application specific Switch Rockers For CAD system development support, 3D construction data is available from EnOcean (IGS data). Using this data, the mechanical interface is fixed, and the shape and surface of the rocker(s) can be changed according to requirements. Recommendation for suitable rocker material is Ultradur B 4520 with a surface roughness of min. Ra 1.0 ym. Please note that the rockers should be of nonmetal for best transmission range! Please also avoid plastic materials with conducting ingredients like graphite! 3.3 Device Mounting For mounting the PTM 200C device into an application specific case, the package outline drawings of the device are roughly dimensioned in chapter 1.4. If more detailed dimensioning data of the PTM 200C device case is necessary, 3D construction data is available from EnOcean (IGS data). ©EnOcean GmbH, W. Heller Page 15 of 19 PTM 200C User Manual V1.01
3.4 Transmission Range The main factors that influence the system transmission range are: o Type and location of the antennas of receiver and transmitter o Type of terrain and degree of obstruction of the link path o Sources of interference affecting the receiver o “Dead” spots caused by signal reflections from nearby conductive objects Since the expected transmission range strongly depends on these system conditions, range tests should categorically be performed in early project phases! The following figures for expected transmission range are considered by using a PTM, or STM transmitter device and the RCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only: • Line-of-sight connections: Typically 30m range in corridors, up to 100m in halls • Plasterboard walls / dry wood: Typically 30m range, through max. 5 walls • Brick walls / aerated concrete: Typically 20m range, through max. 3 walls • Ferroconcrete walls / ceilings: Typically 10m range, through max. 1 ceiling • Fire-safety walls, elevator shafts, staircases and supply areas should be considered as screening. The angle at which the transmitted signal hits the wall is very important. The effective wall thickness – and with it the signal attenuation – varies according to this angle. Signals should be transmitted as directly as possible through the wall. Wall niches should be avoided. Other factors restricting transmission range: • Switch mounted on metal surfaces (up to 60% loss of transmission range) • Hollow lightweight walls filled with insulating wool on metal foil • False ceilings with panels of metal or carbon fiber • Lead glass or glass with metal coating, steel furniture The distance between EnOcean receivers and other transmitting devices such as computers, audio and video equipment that also emit high-frequency signals should be at least 1m. A summarized application note to determine the transmission range within buildings is available as download from www.enocean.com. ©EnOcean GmbH, W. Heller Page 16 of 19 PTM 200C User Manual V1.01
3.5 FCC/IC Approval Requirements This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. If this device is operated in compliance with the following requirements it can be operated without notification and free of charge in the area of the United States of America and in Canada. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions. (1) this device may notcause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC ID: SZV-PTM200C IC: 5713A-PTM200C Trade Name: PTM200C Model No: PTM200C Warning: Changes or modifications made to this equipment not expressly approved by EnOcean may void the FCC authorization to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Due to FCC 15.231 operational and timing requirements the PTM 200C switch device must not be operated more than 1088 times per hour (pushed or released as one operation each): • Total duration of transmissions must not exceed more than two seconds per hour • PTM 200 packet length is 0.7 ms, max. 5 redundant packets, tolerance of 5% in packet length, 50% on average packet Ton/Toff ratio This Class B digital apparatus complies with Canadian ICES-003. ©EnOcean GmbH, W. Heller Page 17 of 19 PTM 200C User Manual V1.01
4. DEVELOPMENT TOOLS 4.1 Evaluation Kit EVA 105C EVA 100C is an evaluation kit to support a simple setting-up operation of the receiver side when the EnOcean transmitter device PTM 200C is evaluated. EVA 100C supports a quick evaluation of RCM 130C receiver operation modes and supports the fast development of applications. Type EnOcean Ordering Code Scope of supply EVA 105C H3034-G105 • Evaluation board EVA-PCB • EnOcean radio devices STM 110C, PTM 200C, and RCM 130C • CD with RS232 PC-link monitor software and detailed kit documentation • Convenient equipment case • 120V wall power supply 4.2 Field Intensity Meter EPM 100C The EPM100C is a mobile field-intensity meter that helps the engineer to find the best installation positions for sensor and receiver. It can also be used to check disturbances in links to already installed equipment. The EPM100C displays the field intensity of received radio telegrams and interfering radio signals in the 315MHz range. The simplest procedure for determining the best installation positions for the radio sensor/receiver: • Person 1 operates the radio sensor and generates pushbutton radio telegrams. • Person 2 checks the received field intensity on the meter display to find the optimal installation position. Type EnOcean Ordering Code EPM 100C S3034-J100 ©EnOcean GmbH, W. Heller Page 18 of 19 PTM 200C User Manual V1.01
©EnOcean GmbH, W. Heller Page 19 of 19 PTM 200C User Manual V1.01 5. Patent protection PTM200C is protected by the following patents: o US 6,747,573 o US 7,019,241 o Further patents pending

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