奥的斯资料OTIS-RSL串行协议

Engineering Center Five Farm Springs Farmington, CT 06032 Original Date: Project Number: Dwg / Part No: 2005-10-24 C867 Document: SID00022 Sheet 1 of 16PC Number: Remote Serial Link (RSL) Protocol Interface Standard DISTRIBUTION: Per notification document 53627. ORIGINAL APPROVAL: Prepared By: (Last, F I typed) Lerner, Bruce Approved By: (Last, F I typed) Leach, R. B. (Signature and date) Bruce Lerner 2005-10-24 (Signature and date) Bryan Leach 10/24/05 Hoopes, Bruce Vela, Haran Bruce Hoopes 2/15/06 Haran Vela 10/24/05 REVISION APPROVAL RECORD: Rev Date (yyyy-mm-dd) Project/ PC Revised By: (Last, F I typed) Approved By: (Last, F I typed)(Signature and date) Description of Change Reason for Change This work and the information it contains are the property of Otis Elevator Company (“Otis”). It is delivered to others on the express condition that it will be used only for, or on behalf of, Otis; that neither it nor the information it contains will be reproduced or disclosed, in whole or in part, without the prior written consent of Otis; and that on demand it and any copies will be promptly returned to Otis. Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 海量免海量免费费技技术资术资料料请请加加QQ群：群：414157718 （提供大量免（提供大量免费费技技术资术资料与技料与技术术交流，共同提高技交流，共同提高技术术水平，广告勿水平，广告勿扰扰！）！） 声明：本声明：本资资料来源于网料来源于网络络， ，请请勿用于商勿用于商业业用途，若涉版用途，若涉版权问题请权问题请与与24小小时时内内删删除。除。 Document: SID00022 Page: 2 of 15 Table of Contents 1 Introduction. 4 1.1 Purpose. 4 1.2 Overview. 4 1.3 Referenced Documents . 4 2 RSL Overview . 5 2.1 Communication Context. 5 2.2 Otis RSL Protocol Mapping to the 7-layer ISO model. 5 3 Otis RSL Functionality. 6 4 OSI Layer 1: RSL Physical. 6 4.1 RSL Physical layer. 6 4.1.1 Signal levels. 6 4.1.2 Power levels. 6 4.1.3 Bit Representation . 6 4.1.4 Transmission Medium . 6 4.1.5 Connectors. 7 5 OSI Layer 2: RSL Link. 7 5.1 Frames. 7 5.2 Data Cycles (Master Station driven). 8 5.2.1 Synchronization Cycle. 8 5.2.2 Write Cycle. 8 5.2.3 Read Cycle. 8 5.3 Frame Timing. 8 5.4 Error Detection. 8 6 OSI Layers 3 6: Not Supported . 9 7 OSI Layer 7. 9 7.1 Basic RSL Data format . 9 7.1.1 Master Write /Slave Read. 9 7.1.2 Master Read /Slave Write. 9 7.2 CPI-11 / New Europa Line (NEL) RSL Data format . 9 7.2.1 ELD Frames. 9 7.2.2 7 & 16 Segment LCD Character Bit-maps . 11 7.2.3 7 & 16 bit LCD Character Code list . 12 7.2.4 ELD Frame Description. 13 7.2.5 ELD Commands . 14 7.3 Global Aesthetics RSL Data format . 15 7.3.1 Frame 0. 15 7.3.2 Frame 1. 15 Appendix. 16 APPENDIX A Definitions and Acronyms . 16 Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 3 of 15 1 Introduction 1.1 Purpose This document describes Otis application of the Remote Serial Link (RSL) within the Elevator system. This document should serve as a reference for creating modules that communicate using the RSL protocol. This document is meant to be referenced by multiple Module SIDs and does not intend to capture Module specific information. Any Module or Message specific information found in this document are examples and should not be construed as a definition of a standard for a Module or Message. This document will be updated when the RSL protocol standard or Otis application of RSL is amended, following approval by the Interface Change Control Board. 1.2 Overview This document has been divided into the following sections and subsections. The combined information in these sections provides a complete description of Otis application of the RSL protocol. ? Protocol Description o The protocol description is an introduction to the Otis RSL Protocol and its expected functionality in relation to commercial protocol standards, primarily the 7-layer OSI standard. ? Functional Allocation o This section specifies the functions that are supported by the interface. The functions in this section support or interact with functionality in other modules. The interface requirements are generally driven by the cross-module functional interactions. ? Appendix o o List of Acronyms and Definitions. List of references that may be useful in understanding this document or its history. 1.3 Referenced Documents 1 “System Architecture Interface Standard”, Otis Elevator Company, 2005. Document # SID00000. 2 “Signalling Subsystem Basic Data”, Flohr Ois Engineering, Otis Elevator Company, 8-September- 1987. 3 Gewinner, J “Remote Station Family A9693 C1, C2, C3, C4 Basic Data”, Version 1.0, Flohr Otis, Berlin, 26-Feb-1988. 4 Shull, J “Industrial Control Unit Integrated Circuit Design Specification”, Revision 8, Otis Elevator Company, July 25, 1988. 5 Schulte, J “CPI11 ELD for OTIS2000 - Serial Protocol Definition”, Otis Elevator Company, European and Transcontinental Operations, Berlin. Document # GAA25250B_BD1, 1994-03-03. 6 Drop, D “RSL Global Aesthetics Generic Fixtures Serial Protocol Description”, Otis Elevator Company, 2000-11-17, Document # 54723. Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 4 of 15 2 RSL Overview This section describes the mapping of Otis application of RSL to the OSI model. This Remote Serial Link is a low-cost 4-wire bus that is intended for use in a single master multiple slaves (I/O devices) configuration. Information is transferred as a continuous 64 frames of 5 bits each. The four wires applied by RSL between a master device and a slave device, are arranged as two pairs of wires, one providing communication, the other pair providing power. All stations on the RSL are connected in parallel. The RSL master provides synchronization for the read/write data transfer. The RSL is used as a long distance (hoistway length) communication channel for fixtures and bit-oriented inputs and outputs. 2.1 Communication Context RSL is being applied as one of the communication protocols in the elevator control system communication architecture. See reference 1. 2.2 Otis RSL Protocol Mapping to the 7-layer ISO model This diagram maps the implemented layering for the RSL Protocol to the industry standard ISO 7-layer model. OSI Reference Model OSI-RM Defintion Otis Layers Otis Application Comm. Term Application-to- application communication Convert Encrypt Compress Establish Manage Terminate Error recover, Flow control Protocol Data Unit (PDU) 7 6 5 4 3 Bit Mapping for: Basic RSL, CPI11/NEL and Global Aesthetics 7. Application 6. Presentation 5. Session Application Presentation N/A 4. Transport Segment Packet Route 3. Network Determine path Media Access Control, Framing error 2 1 2. Link Link RSL RSL Frame Bits Transmit raw bits 1. Physical Physical 3 Otis RSL Functionality Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 5 of 15 The Otis RSL protocol interface standard describes the mechanism for bit-oriented input and output between RSL slave stations and an RSL master station, and for bit-oriented output and commands/output between a master and its slave devices. The RSL protocol addresses the physical and link layers, therefore they will be the only layers described in this document. Typical use includes: Bit-oriented input to the controller e.g. buttons, keyswitches Bit-oriented output from the controller e.g. tell-tale lights Position indicator data stream Electro-luminescent Display (ELD) data 4 OSI Layer 1: RSL Physical Following a synchronization sequence, the master station transmits data for each slave station and then reads data from the slave stations. 4.1 RSL Physical layer This section defines the signal levels, cabling and logical representation of signals for the RSL. 4.1.1 Signal levels Parameter Signal voltage levels for L1 and L2 data lines Common mode rejection voltage Min -6.0 Max 35.0 +4.0 Unit Vdc Vdc High level: VL1 = VL2 + 0.8 Vdc Low level: VL1 = VL2 + 0.3 Vdc 4.1.2 Power levels Parameter Power lines Voltage drop on power distribution line Current - board specific Min 17.7 Max 35.0 2.0 Unit Vdc Vdc 4.1.3 Bit Representation 4.1.3.1 Signal Levels Parameter Min Max Unit Logical “0” Logical “1” -6.0 17.0 0.8 35.0 Vdc Vdc 4.1.4 Transmission Medium The four wire serial link consists of two data lines and two power lines. The system allows for a maximum serial line length of 300 m and a tap length of 2m. 4.1.4.1 Data transmission lines The data lines are twisted pair to minimize differential voltage distortion. L1 is the data line and L2 is the clock line used for synchronization. 4.1.4.2 Power lines The power line pair may be twisted or parallel. The transmission line should have end-to-end impedance of approximately 100 ohms and approximate capacitance of 60 pf/meter. See reference 2. 4.1.5 Connectors 4.1.5.1 “Slave” Platforms (e.g. fixtures) 4.1.5.1.1 One row of 4 pins This connector supports two links, the link supplying power and the link supplying control messages. Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 6 of 15 Post 1 RSL Signal Signal Description Name Function DL1 DL2 Return VRS Differential signal for RSL Differential signal for RSL Voltage return for fixture power Data Line 1 Data Line 2 2 3 4 Return power for Fixture Electronics Supply for Fixture Electronics power +33 Volt to power fixture DL1 1 2 DL2 Return 3 4 Vrs Figure 1 - RSL Connector 5 OSI Layer 2: RSL Link The master station provides the basis for data transfer cycles. It provides the clock pulsed, drives the output for all frames (stations/addresses) during the write cycle and reads the inputs from all frames (slave stations/addresses) during the read cycle. 5.1 Frames Data is transferred in frames that are a nominally defined time of 800 S made up of a 100 S clock pulse and 5 data bits of 100 S each. The data bits are bounded by 100 S dead slots. See reference 3. C L K C L K C L K L2 800 S Frame 1 5 Frame 2 3 4 5 L1 1 2 3 4 1 2 ? 100 S ? 5.2 Data Cycles (Master Station driven) Each data transfer cycle consists of a three sequential sub-cycles (from the master station perspective): write, read, synchronization. See reference 3. Write 51.2 ms ReadSync 51.2 ms1.6 ms 5.2.1 Synchronization Cycle The Synchronization Cycle consists of two frames without clock pulses that are inserted between every C L K C L K L2 Form PA1021 Rev. 2002-06-11 Frame 127 Unpublished Work - Copyright Otis Elevator Company Frame 0 ? Sync Frame L1 1 2 3 4 5 1 2 Document: SID00022 Page: 7 of 15 data write/read cycle. 5.2.2 Write Cycle C L K C L K C L K C L K L2 Frame 0Frame 1Frame 63 1 Frame 64 L1 1 2 3 4 5 1234523451 2 5.2.3 Read Cycle C L K C L K C L K L2 Sync Frame Frame 64Frame 65Frame 127 L1 1 2 3 4 5 1 2 3 4 51 2 3 4 5 5.3 Frame Timing Signal Min Typ Max Unit Cycle Time Clock Width Data 788 80 80 800 100 100 835 146 146 S S S 5.4 Error Detection The RSL protocol supports detection of loss of synchronization. The master station monitors for bit and clock pulse errors, providing a flag on the detected error. See reference 2. 6 OSI Layers 3 6: Not Supported 7 OSI Layer 7 This section describes the application of the frames and sdata (PI) bits as applied for basic RSL, CPI11/NEL and Global Aesthetic fixtures. 7.1 Basic RSL Data format The master station performs as described above (section 5). Each slave station/address) is responsible to read 5-bits from frame 0, the 5 bit from frames 4 39 (36 sdata bits related to PI information) and the 5 bits thassociated with its address. See references 2 and 3. 7.1.1 Master Write /Slave Read Frame 0: master provides a command that is read by all slave stations Frames 1 3: Frames 4 63: Not used th Master provides data for 60 slave stations addressed 4 to 63, including 5 bit sdata for frames 4-39. Slave stations read 4 bits from their station time slot (address) and th the 5 bit from frames 4-39. 7.1.2 Master Read /Slave Write Master station reads all frames. Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 8 of 15 Frame 64: stations with address 0 (for test purposes) respond in this frame Frames 65 67: Not used Frames 68 127: slave stations with address 4-63 respond in their sequential frame (time slot) 7.2 CPI-11 / New Europa Line (NEL) RSL Data format th This format modifies the meaning of the sdata (5 data bit in each frame of frames 4-39) and is NOT compatible with PI devices using the basic RSL protocol. See reference 5. 7.2.1 ELD Frames 7.2.1.1 Frame 0 7.2.1.2 Frame 1 Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 9 of 14 7.2.2 7 & 16 Segment LCD Character Bit-maps 7.2.2.1 Segment locations for LCD Position Indicator 7.2.2.2 Bit map for LCD Segment code Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 10 of 14 7.2.3 7 & 16 bit LCD Character Code list Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-06-11 Document: SID00022 Page: 11 of 14 7.2.4 ELD Frame Description Form PA1021Unpublished Work - Copyright Otis Elevator Company Rev. 2002-