Fuji Electric FRENIC-Mini Series User Manual
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Fuji Electric FRENIC-Mini Series User Manual

Rs-485
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MEH448d

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  • Page 1 MEH448d...
  • Page 2 User's Manual for RS-485 Communications Card...
  • Page 3 Copyright © 2002-2009 Fuji Electric Systems Co., Ltd. All rights reserved. The copyright in this user's manual belongs to Fuji Electric Systems Co., Ltd. This manual may not be reprinted or reproduced, in whole or in part, except as may be expressly permitted by Fuji Electric Systems Co., Ltd.
  • Page 4 Preface The inverter can be connected with the keypad through RJ-45 connector (modular jack) *1, RS-485 communications card (option) *2, and control circuit terminal base *3. Using these connection methods, the inverter function can be expanded to such a level where RS-485 communications can be used.
  • Page 5 FRENIC-Multi Name Document number Description Overview of FRENIC-Multi, how to operate the keypad, User's Manual MEH457 control block diagram, selection of peripherals, capacity selection, specifications, function codes, etc. MEH652 Overview of FRENIC-Multi, features, specifications, Catalog outline drawing, options, etc. MEH653 Inspection at the time of product arrival, installation INR-SI47-1094-E and wiring, how to operate the keypad,...

  • Page 6: Safety Precautions

    Safety Precautions Prior to installation, connection (wiring), operation, maintenance or inspection, read through this user's manual as well as the instruction and installation manuals to ensure proper operation of the product. Familiarize yourself with all information required for proper use, including knowledge relating to the product, safety information, and precautions.

  • Page 7: Table Of Contents

    Table of Contents CHAPTER 1 OVERVIEW1 Features ..........................1-1 List of Functions ........................1-2 CHAPTER 2 COMMON SPECIFICATIONS1 Specifications of RS-485 Communications ................2-1 2.1.1 Specification of the RJ-45 connector for RS-485 communications (modular jack) ..2-3 2.1.2 Specification of the terminal for RS-485 communications ..........2-4 2.1.3 RJ-45 connector (modular jack) for function expansion ..........
  • Page 8 CHAPTER 4 FUJI GENERAL-PURPOSE INVERTER PROTOCOL1 Messages ..........................4-1 4.1.1 Message formats ......................4-1 4.1.2 Transmission frames ..................... 4-2 4.1.3 Descriptions of fields....................4-11 4.1.4 Communications examples..................4-13 Host Side Procedures ......................4-15 4.2.1 Inverter's response time ....................4-15 4.2.2 Timeout processing......................
  • Page 9 CHAPTER 7 Metasys N2 (N2 PROTOCOL)1 Messages ..........................7-1 7.1.1 Transmission Specification .................... 7-1 7.1.2 polling/selecting ......................7-1 Setting up Communications of the FRENIC-Eco ..............7-1 Point mapping tables......................7-2 Read / Write Parameter......................7-3 Support Command List......................7-4...
  • Page 10 CHAPTER 1 OVERVIEW This chapter describes the functions that can be realized by performing RS-485 communications. Table of Contents Features ..........................1-1 List of Functions ........................1-2...

  • Page 12: Features

    1.1 Features Features The functions listed below can be implemented using RS-485 communications. The keypad can be mounted on the easy-to-access front of control panel with an extension cable (option). The function code data of the inverter can be edited and the operation status of the inverter can be monitored by connecting it to a personal computer on which inverter support software runs (see the "FRENIC Loader Instruction Manual").

  • Page 13: List Of Functions

    List of Functions The functions listed below become available by operating the appropriate function codes from the host controller. The chapters that follow describe these functions in detail. Table 1.1 List of RS-485 communications functions Related Function Description function code Operation The functions equivalent to the terminal functions shown below can be S codes...
  • Page 14 CHAPTER 2 COMMON SPECIFICATIONS This chapter describes the specifications common to the Modbus RTU protocol, Fuji general-purpose inverter protocol, and loader protocol. For further information about the specific specifications of each protocol, see Chapter 3 "Modbus RTU Protocol" and Chapter 4 "Fuji General-purpose Inverter Protocol."...

  • Page 16: Specifications Of Rs-485 Communications

    2.1 Specifications Specifications of RS-485 Communications Table 2.1 shows the specifications of RS-485 communications. Table 2.1 RS-485 communications specifications Item Specification Protocol FGI-BUS Modbus RTU Loader commands Complying with Fuji general-purpose Modicon Modbus Special commands inverter protocol RTU-compliant (only in dedicated to inverter RTU mode only) support loader software...
  • Page 17 Table 2.2 Connection method and applicable protocol for FRENIC series Applicable protocol *1 Hardware Communications Connection specifications Fuji Model Port type Modbus means port for connection Keypad*2 Loader general-purpose RTU*3 port inverter protocol RS-485 FRENIC RJ-45 Standard communications See 2.1.1. -Mini connector port...

  • Page 18: Specification Of The Rj-45 Connector For Rs-485 Communications (Modular Jack)

    2.1 Specifications 2.1.1 Specification of the RJ-45 connector for RS-485 communications (modular jack) The RS-485 communications port of the FRENIC-Mini's RS-485 communications card (option) and the RS-485 communications port for connecting the keypad equipped on the FRENIC-Eco/Multi are the RJ-45 connectors with the pin assignment shown below. Pin No.

  • Page 19: Specification Of The Terminal For Rs-485 Communications

    2.1.2 Specification of the terminal for RS-485 communications ・RS-485 communications card for FRENIC-Eco (option) FRENIC-Eco/Multi's RS-485 communications card is equipped with two pairs of terminals for multidrop. The terminal symbols, terminal names, and functions of the respective terminals are as shown in the table below. Terminal symbol Terminal name Function description...

  • Page 20: Connector (Modular Jack) For Function Expansion

    2.1 Specifications 2.1.3 RJ-45 connector (modular jack) for function expansion RS-485 communications card for FRENIC-Multi (option) Two RJ-45 connectors for function expansion are provided for connection with the multi-drop circuit. The terminal symbol, terminal name, and functions are shown in the table below. The connector for standard equipment and that for a relay have the same specifications without any distinction.
  • Page 21 Connection with FVR-E11S series The pin assignment of FVR-E11S series differs from that of FRENIC series. Therefore, it may be impossible to access the communications system to which FVR-E11S is connected. The signal change switch (SW10) equalize the signal assignment with that of FVR-E11S series, which makes it easy to connect with the communications system.

  • Page 22: Specification Of Connection Cable For Rs-485 Terminal

    2.1 Specifications 2.1.4 Specification of connection cable for RS-485 terminal [1] RJ-45 connector The specification of the connection cable is as follows to ensure the reliability of connection. Specifications Common specification Straight cable for 10BASE-T/100BASE-TX, satisfying the US ANSI/TIA/EIA-568A category 5 standard (commercial LAN cable) Extension cable for remote Same as above, 8-core, 5m long, RJ-45 connector (both...

  • Page 23: Connections

    Connections 2.2.1 Basic connection When connecting the keypad with the inverter or connecting the inverter with a host such as personal computer or PLC, use a standard LAN cable (straight for 10BASE-T). A converter is necessary to connect a host not equipped with RS-485 interface. (1) Connection with the keypad FRENIC-Mini: Inverter...
  • Page 24 2.2 Connections (2) Connection with the inverter support software FRENIC Loader (personal computer)(when connecting with the USB port via a recommended converter) Figure 2.2 Connection with a personal computer Converter: USB-485I, RJ45-T4P (System Sacom Sales Corp., Japan) Cable 1: USB cable supplied with the converter Cable 2: extension cable for remote operations (CB-5S, CB-3S, or CB-1S) or commercial LAN cable...
  • Page 25 (3) Example of typical connection other than above (Multidrop connection using the RJ-45 connector) The figure below shows a connecting example to the multi-drop circuit with RJ-45 connector. RJ-45 needs a multi-drop branch adaptor as an external device for relaying. The adaptor for relaying is not necessary for the inverter with RJ-45 connector for function expansion.

  • Page 26: Connection Procedures

    2.2 Connections (4) Multidrop connection using terminal block When using the RS-485 communications card (option) to connect FRENIC-Eco with a host by multidrop connection, connect them as shown in the figure below. Turn on the SW103 switch for inserting a terminating resistance, equipped on the RS-485 communications card (option) mounted on the inverter used as the terminator.
  • Page 27 - RJ-45 connector for communications through RS-485 is connected with the keypad power (pin No. 1, 2, 7, and 8). When connecting with the other equipment, be careful not to connect with the pins assigned as the power supply. - If the communications circuit is connected with FVR-E11S series, there is a possibility that the power circuit is shorted or the signal wires collide with each other, resulting in the damage to the circuit.
  • Page 28 2.2 Connections (a ) RS-485 communications card (for FRENIC-Mini) (b) Control PCB (FRENIC-Eco) (c) RS-485 communications card (for FRENIC-Eco) (e) RS-485 communications card (d) Printed circuit board (FRENIC-Multi) (for FRENIC-Multi) Figure 2.6(1) Layout of the switches for inserting a terminating resistance 2-13...
  • Page 29 Terminal resistance insertion switch (RS-485 communications Default port 1) setting Terminal resistance insertion switch (RS-485 communications port 2) (f) Printed circuit board (FRENIC-MEGA) Figure 2.6 (2) Switch arrangement for insertion of a terminal resistance [3] Connection with a four-wire host Although FRENIC-Mini/Eco uses two-wire cables, some hosts adopt only four-wire cables.

  • Page 30: Devices For Connection

    2.2 Connections 2.2.3 Devices for connection This section describes the devices necessary for connecting a host not equipped with RS-485 interface, such as a personal computer, or for multidrop connection. [1] Converter In general, personal computers are not equipped with an RS-485 port. An RS-232C to RS-485 converter or USB to RS-485 converter is therefore required.

  • Page 31: Measures Against Noise

    2.2.4 Measures against noise Depending on the operating environment, normal communications cannot be performed or instruments and converters on the host side may malfunction due to the noise generated by the inverter. This section describes measures to be taken against such problems. Consult Appendix A "Advantageous Use of Inverters (Notes on electrical noise)"...
  • Page 32 2.2 Connections Separating the grounding Do not ground instruments and the inverter together. Noise may conduct through the grounding wire. Use as a thick wire as possible for grounding. Isolating the power supply Noise may carry through the power supply line to instruments. It is recommended that the distribution system be separated or a power isolation transformer (TRAFY) or noise suppression transformer be used to isolate the power supply for such instruments from the power supply for the inverter.

  • Page 33: Switching To Communications

    Switching to Communications 2.3.1 Functions for the switching Figure 2.9 below shows a block diagram via communications for frequency setting and operation commands. This block diagram indicates only the base of the switching section, and some settings may be given higher priority than the blocks shown in this diagram or details may be different due to functional expansion and so on.

  • Page 34: Link Functions (Operation Selection)

    2.3 Switching to Communications 2.3.2 Link functions (operation selection) According to the setting of function code H30: Serial link (function select), the frequency setting and the operation command source (via-communications command or command selected by function codes F01/C30 and F02 when communications is valid can be selected. Frequency setting done when the communications is valid and selection of operation source are influenced by the settings at y98, y99.

  • Page 35: How To Switch Communications Enabled/Disabled

    2.3.3 How to switch communications enabled/disabled To issue a frequency setting or operation command through communications to control the inverter, select "Through RS-485 communications" by function code H30: link function (operation selection). In addition, when switching control through communications with control from the terminal block (frequency setting from terminal [12], operation command from terminal [FWD] and so on) to switch remote operations with operations on the inverter body, assign "link operation selection"...

  • Page 36: Link Functions For Supporting Data Input (Operation Select)

    2.3 Switching to Communications 2.3.4 Link functions for supporting data input (operation select) According to the setting of function code y99: link function for supporting data input (operation select), the frequency setting and the operation command source (via-communications command or command specified by function code H30 and y98) when communications is valid can be selected individually.

  • Page 37: Making Rs-485-Related Settings

    Making RS-485-related Settings 2.4.1 Link function (RS-485 setting) Use function codes (y01 to y10 and y11 to y20) to make settings for RS-485 communications functions. Use the codes y01 to 10 for port 1 and the codes y11 to 20 for port 2. Station address (y01, y11) Set a station address for RS-485 communications.

  • Page 38: 2.4 Making Rs-485-Related Settings

    2.4 Making RS-485-related Settings Table 2.9 Baud rate Baud rate (y04, y14) Data Baud rate Set a baud rate. 2400 bps - Setting when FRENIC Loader is connected 4800 bps Match the baud rate with that of the personal 9600 bps computer.
  • Page 39 Table 2.13 No response error No response error detection time (y08, y18) detection time In a system designed to be sure to access a Data Function station (inverter) managed by a host within a No response error specific period of time, access may be lost during detection disabled RS-485 communications due to wire disconnec- 1 to 60...

  • Page 40: Selecting The Method Of Storing Communications Data

    2.5 Selecting the Method of Storing Communications Data Selecting the Method of Storing Communications Data Selecting the method of storing communications data (y97: Applicable only to the FRENIC-MEGA) The times of data writing onto the inverter memory are limited (100 thousand to 1 million times).
  • Page 41 2-26...

  • Page 42: Messages

    CHAPTER 3 Modbus RTU PROTOCOL This chapter describes the Modbus RTU protocol, as well as the host side procedure for using this protocol and error processing. The Modbus RTU protocol was a set of specifications developed in the United States. For the FRENIC-Mini of which inverter ROM version is 0399 or earlier, the Modbus RTU functions are partially 5_ 14 restricted.

  • Page 44: Messages

    3-1 Messages Messages 3.1.1 Message formats The regular formats for transmitting RTU messages are shown below: Inverter's response time (Slave Turn-around Time) Host Query message Query transaction (master) Inverter Response (slave) Host Broad cast transaction Broadcast message (master) Inverter No response (slave) If the inverter receives from the host a message in the standby status and considers it properly received, it executes a transaction in response to the request and sends back normal response.

  • Page 45: Message Frames

    3.1.3 Message frames As shown below, a transmission frame consists of four blocks, which are called fields. Details depend on FC (RTU function codes). To make a clear distinction between RTU function codes and the inverter's function codes, the former will be hereinafter referred to as 'FC'. 1 byte 1 byte Up to 105 bytes*1...
  • Page 46 3-1 Messages Character format Each byte of a message is transmitted as a character. Character formats are described on the following page. A character comprises a start bit (logical value 0), 8-bit data, an additional (optional) parity bit, and a stop bit (logical value 1). A character always consists of eleven bits, and the number of stop bits varies depending on whether parity exists.

  • Page 47: Message Categories

    3.1.4 Message categories There are eight RTU message categories; read holding registers, preset single register, preset multiple registers, diagnostics, read coil status, force single coil, force multiple coils and error response. Each category is described below: [1] Read holding registers Query 1 byte 1 byte...
  • Page 48 3-1 Messages Interpretation of normal response The data range of byte counts is between 2 and 100 (from 2 to 100 for FRENIC-MEGA). A byte count is double the number of read data (1 - 50 data) of the response (1 to 100 data for FRENIC-MEGA).
  • Page 49 How to set a query When the station address 0 is selected, broadcast is available. In this case, all inverters do not respond even if a broadcast request is executed. 'FC' = 16 (10 The function code is two bytes long. The Hi byte indicates the function code group (see Table 3.2), and the Lo byte represents a function code identification number (0 to 99).
  • Page 50 3-1 Messages [5] Read coil status (not supported by FRENIC-Mini) Query 1 byte 1 byte 2 bytes 2 bytes 2 bytes Station Coil address No. of coils Error check address Normal response 1 byte 1 byte 1 byte 1 to 10 bytes 2 bytes Station Byte count...
  • Page 51 Interpretation of normal response Data are stored from the LSB (the rightmost bit in the table above) in ascending order of coil number. When a coil is turned on, the data becomes one, and all the remaining bits are changed to zero. The byte length of the read data is filled in the byte count field.
  • Page 52 3-1 Messages [7] Force multiple coils (not supported by FRENIC-Mini) Query 1 byte 1 byte 2 bytes 2 bytes 1 byte 1 to 2 bytes 2 bytes Station Coil address No. of coils Byte account Write data Error check address Normal response 1 byte 1 byte...
  • Page 53 Interpretation of normal response The forms of coil address and number of coils are the same as the forms of query. No response is returned to the broadcast command. [8] Error response If the inverter receives an improper query, it will not execute it, which will result in error response.

  • Page 54: Communications Examples

    3-1 Messages 3.1.5 Communications examples Typical communications examples are shown below (the station address is 5 in all cases). (Example 1) M06: Reading actual frequency and speed Query (host ⇒ inverter) Normal response (inverter ⇒ host) The detected speed value is 2710 , or 10000 .

  • Page 55: Host Side Procedures

    Host Side Procedures 3.2.1 Inverter's response time Upon receipt of a query from the host, the inverter executes the queried transaction and sends back response after the response time shown below: Host Query Query Response Response Inverter Response interval time The response interval time is the longest time out of the time setting by a function code(1), 3-character time(2), or inverter's processing time(3).

  • Page 56: Timeout Processing

    3.2 Host Side Procedures 2) Preset single register, preset multiple registers, force single coil, and force multiple coils Table 3.11 Inverter processing time Data count Inverter processing time (minimum to maximum) 25 to 30 (ms) 45 to 50 (ms) 65 to 70 (ms) 85 to 90 (ms) n×20+5 to n×20+10 (ms) If the data is written in H03=1, the inverter processing time is a maximum of 5 seconds.

  • Page 57: Receiving Preparation Complete Time And Message Timing From The Host

    3.2.3 Receiving preparation complete time and message timing from the host The time from the return of response by the inverter until the completion of receiving preparation of the communications port (switching from transmission to receiving) is called a receiving preparation complete time.

  • Page 58: Communications Errors

    3.3 Communications Errors Communications Errors 3.3.1 Categories of communications errors The communications-related errors the inverter detects are listed below: Table 3.12 Communications errors detected by inverter Error Error name Description Error code category (M26 or M67) Logical error Improper 'FC' 1(01 Improper address 2(02...

  • Page 59: Operations In Case Of Errors

    3.3.2 Operations in case of errors The action when a transmission or communications disconnection error occurs can be selected with function code y02, y12. (For further information, see "2.4 Making RS-485-related settings.") This section shows specific examples of action by different settings of function code y02. (The same operation is performed for y12 as well.
  • Page 60 3.3 Communications Errors When y02 = 2 and y03 = 5.0 (seconds) (when communications is not recovered although five seconds elapsed from the occurrence of a ερ8 communications error, and an trip occurs) Error Alarm reset Communications status Normal Normal Display Regular 5.0s...
  • Page 61 When y02 = 3 (mode in which the inverter continues operating when a communications error occurs) Error Communications status Normal Normal Display Regular Command from RS485 RS-485 frequency Operation Operation command Inverter's internal frequency operation Output frequency The inverter retains the setting at the time of the occurrence of the transmission error, and continues operating.

  • Page 62: Crc-16

    3.4 CRC-16 CRC-16 3.4.1 Overview of the CRC-16 The CRC (cyclic redundancy check) is a system to confirm whether there is any error in the communications frame during data transmission. The CRC is among the most effective error check systems. The transmission station calculates and adds CRC data to the last block of the frame, and the receiving station also calculates CRC data against the data received, and compares them with each other.
  • Page 63 START Initial setting Remainder R ← "FFFF" Generative polynomial expression GP ← "A001" Data length counter n ← 0 Data length calculation N <- Data length n == N ? The A = n transmitted byte is set at the lower order byte of the word data. The upper order byte is "0."...

  • Page 64: Calculation Example

    3.4 CRC-16 3.4.3 Calculation example Example of transmitting read data Station address = 1, 'FC' = 3, function code = P02 (P = 03 , 02 = 02 ), number of read data = 20, GP = generative polynomial expression(1010 0000 0000 0001) Station 'FC' Function code...

  • Page 65: Frame Length Calculation

    Table 3.13 CRC data calculation table (Continued) PROCESS 15 14 13 12 Flag CRC = No.37 Xor GP Shift > 1 CRC = No.39 Xor GP Shift > 2 CRC = No.41 Xor GP Shift > 1 CRC = No.43 Xor GP data byte CRC = No.44 Xor No.45 Shift >...
  • Page 66 CHAPTER 4 FUJI GENERAL-PURPOSE INVERTER PROTOCOL This chapter describes the Fuji general-purpose inverter protocol, a common protocol to Fuji general-purpose inverters, as well as the host side procedure to use this protocol and error processing. Table of Contents Messages ..........................4-1 4.1.1 Message formats ......................

  • Page 68: Messages

    4.1 Messages Messages 4.1.1 Message formats The polling/selecting system is used to transmit and receive messages. The inverter always waits for selecting (write requests) or polling (read requests) from a host such as a personal computer or PLC. When the inverter in the standby status receives a request frame from the host addressed to itself (local station) and considers the request frame to have been normally received, the inverter executes the transaction in response to the request, and sends back an acknowledgement (ACK) frame (or response and data in the case of polling).

  • Page 69: Transmission Frames

    4.1.2 Transmission frames Transmission frames are classified into two types; standard fames with which all communications functions are available, and optional frames, allowing high-speed communications, but whose function is limited to issuing commands to and monitoring the inverter. All characters (including BCC) comprising both standard and optional frames are represented by ASCII codes.
  • Page 70 4.1 Messages Table 4.2 Request frame Value Field Byte Description ASCII Hexadecimal format format Start of message Station 0 to 3，9 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9 to 39 Station address of the inverter (decimal: one's figure) Transmission request Command Request command...
  • Page 71 *3 Function codes are divided into function codes that can be edited from the keypad of the inverter, and communications dedicated function codes. 1) Function codes editable from the keypad Fundamental function: F code Extension terminal function: E code Control function of frequency: C code Motor1 parameter: P code High performance function:...
  • Page 72 4.1 Messages Table 4.3 ACK frame Value Byte Field Description ASCII Hexadecimal format format Start of message Station 0 to 3 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9 to 39 Station address of the inverter (decimal: one's figure) Transmission response Acknowledgement: There was no receiving or logical error.
  • Page 73 Table 4.4 NAK frame Value Byte Field Description ASCII Hexadecimal format format Start of message Station 0 to 3 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9 to 39 Station address of the inverter (decimal: one's figure) Transmission response Negative acknowledgement: There was a logical error in the request.
  • Page 74 4.1 Messages [2] Optional frame This section describes the structure and meaning of each optional frame. Selecting request frame [host ⇒ inverter] 10 11 Station ENQ Command Data address For BCC (byte) Table 4.5 Selecting request frame Value Byte Field Description Hexadecimal ASCII format...
  • Page 75 Selecting response frame [inverter ⇒ host] Station ACK/NAK Command address For BCC (byte) Table 4.6 Selecting response frame (ACK/NAK) Value Field Description ASCII Hexadecimal format format Start of message Station 0 to 3 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9 to 39...
  • Page 76 4.1 Messages Polling response frame [inverter ⇒ host] 10 11 Station ACK/NAK Command Data address For BCC (byte) Table 4.8 Polling response frame (ACK) Value Field Description ASCII Hexadecimal format format Start of message Station 0 to 3 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9...
  • Page 77 Table 4.9 Polling response frame (NAK) Value Field Description ASCII Hexadecimal format format Start of message Station 0 to 3 to 33 Station address of the inverter (decimal: ten's figure) address 0 to 9 to 39 Station address of the inverter (decimal: one's figure) Transmission request ACK/NAK Negative acknowledgment: There was a logical error in...

  • Page 78: Descriptions Of Fields

    4.1 Messages 4.1.3 Descriptions of fields [1] Command field The table below shows command types. The applicable frame is different among the command types. Table 4.11 Command formats Command Description Applicable frame ASCII R Reads function code data (polling). Standard frame ASCII W Writes function code data (selecting).
  • Page 79 (Example) When setting 20Hz with function code S01 (speed setting 1) (maximum frequency = 60Hz) 1) Calculate the set value according to the data format of S01 (±20000/maximum frequency). Data = 20Hz x ±20000/60Hz (+ for forward rotation, − for reverse rotation) =±6666.6 ≈±6667 2) Convert the data into hexadecimal (a complement of 2 in the case of negative data).

  • Page 80: Communications Examples

    4.1 Messages 4.1.4 Communications examples Typical communications examples are shown below (the station number is 12 in all cases): [1] Standard frame (Example 1) Selecting S01: speed setting 1 (write) 10Hz command x 20,000/maximum frequency 50Hz = 4000d = 0FA0 Request frame (host ⇒...
  • Page 81 Table 4.12 ASCII code table “ & ‘ < ＼ − > The shaded codes are used for this communications protocol. 4-14...

  • Page 82: Host Side Procedures

    4.2 Host Side Procedures Host Side Procedures 4.2.1 Inverter's response time Upon receipt of a query request from the host, the inverter executes the requested command, and sends back response after the response time shown below: Host Request frame Request frame Inverter Response frame Response frame...

  • Page 83: Timeout Processing

    4.2.2 Timeout processing To read/write data from/to the host, transmit the next frame after confirming response. If response is not transmitted from the inverter for more than a specified period of time (timeout time), it is a timeout, and perform a retry. (If a retry begins before a timeout, the requested frame cannot be received properly.) The timeout time must be set longer than the response time of the inverter.

  • Page 84: Communications Errors

    4.3 Communications Errors Communications Errors 4.3.1 Categories of communications errors The communications-related errors the inverter detects are listed below: Table 4.14 Communications errors detected by inverter Error Error code Order of Error name Description category (M26) priority Transmission The frame to the local station is Checksum −...

  • Page 85: Operations In Case Of Communications Errors

    Transmission error (error codes 71 to 73) When a transmission error occurs eight straight times, it is handled as a communications error. However, the inverter does not return response in order to avoid overlapping of response from multiple inverters. The count of eight straight times will be cleared upon normal receipt of a frame to another station or to the local inverter (station) itself.
  • Page 86 CHAPTER 5 FUNCTION CODES AND DATA FORMATS This chapter describes communications dedicated function codes and the data formats of communications frames. FRENIC-Mini, FRENIC-Eco and FRENIC-Multi support different function codes. For details, see the description of each function code. Table of Contents Communications Dedicated Function Codes ................

  • Page 88: Communications Dedicated Function Codes

    5.1 Communications Dedicated Function Codes Communications Dedicated Function Codes 5.1.1 About communications dedicated function codes Communications dedicated function codes are available to monitor the operation and status of the inverter via communications. They are classified into the groups shown in Table 5.1 below: Table 5.1 Types of communications dedicated function codes Communications dedicated Function...
  • Page 89 5.1.2 Command data [1] List of command data The table below shows the function codes (S code) for the command data. The "Support" column indicates whether the function code is supported or not. The symbol "O" means that the code is supported and the symbol "X" means that the code is not supported. Table 5.2 List of command data Permissible setting Min.
  • Page 90 5.1 Communications Dedicated Function Codes Support Permissible setting Min. Code Name Function Unit range step Mini Eco Multi MEGA − Alarm reset Alarm reset 0 or 1 command command issued through communications × × × Speed Speed command -32768 to 32767 r/min R/W command issued via...
  • Page 91 [3] Operation command data Table 5.4 Function codes for operation command data Permissible Code Name Function Min. step Unit R/W *1 setting range − Operation Operation command via 0000 command communications FFFF (general-purpose input terminal functions (X1 − X9, XF (FWD), XR (REV)) and communications dedicated command...
  • Page 92 5.1 Communications Dedicated Function Codes Table 5.5 Relation between operation command (S06) and inverter terminal command (external signal input) Support Function Command When not Internal Com- assigned Assign- Terminal operation Munic- (positive Type Mini Eco Multi MEGA ment Name block command Ations logic)
  • Page 93 Table 5.5 Relation between operation command (S06) and inverter terminal command (external signal input) (Continued) Support Function Command When not Internal Com- assigned Assign- Terminal operation Munica- (positive Type Mini Eco Multi MEGA ment Name block command tions logic) number symbol ×...
  • Page 94 5.1 Communications Dedicated Function Codes [4] Function data Table 5.6 Function code and data (S08, S09, S10, S11) Permissible setting Code Name Function Min. step Unit R/W *1 range Set data with Acceleration Mini/Eco/Multi: common code time F07 0.0 to 3600.0 numbers and in common MEGA:...
  • Page 95 [5] Universal DO and universal AO (Not supported by FRENIC-Mini) Table 5.7 Function code and data (S07, S12) Permissible setting Code Name Function Min. step Unit R/W *1 range Universal Command from 0000 to FFFF − communications function to terminal DO Universal Command from -32768 to 32767...

  • Page 96: Monitor Data 1

    5.1 Communications Dedicated Function Codes 5.1.3 Monitor data 1 Function codes for monitor data 1 (M codes) are described in the four tables (1 to 4) below. These function codes are for reading only. These function codes are for reading only. The "Support" column of the table indicates whether each function is supported by the respective models or not.
  • Page 97 Table 5.9 Monitor data 1 function codes (2) Code Name Description Monitor range Min. Unit Support step Mini Multi MEGA − Operation Displays the final 0000 command command created FFFF by information (Final command) from the keypad, terminal block, communications, and transmitted to the inverter inside.
  • Page 98 5.1 Communications Dedicated Function Codes Table 5.10 Monitor data 1 function codes (3) Code Name Description Monitor range Min. Unit Support step Mini Multi MEGA × × × Torque Data equivalent -327.68 to 0.01 command on to M02 on alarm 327.67 alarm (Final command)
  • Page 99 Table 5.11 Monitor data 1 function codes (4) Code Name Description Monitor range Min. Unit Support step Mini Multi MEGA DC link circuit Data equivalent 0 to 1000 voltage on to M21 on alarm alarm × × Inverter internal Air temperature 0 to 255 °C air temperature...
  • Page 100 5.1 Communications Dedicated Function Codes Table 5.12 Monitor data 1 function codes (5) Code Name Description Monitor range Min. Unit Support step Mini Multi MEGA × Motor output on Data equivalent to -327.68 to 327.67 0.01 alarm M64 on alarm −...
  • Page 101 Table 5.13 Monitor data 1 function codes (6) Code Name Description Monitor range Min. Unit Support step Mini Multi − × × × Light alarm Last light alarm 0 to 254 (last) indicated with a code − × × × Light alarm Second last light 0 to 254...

  • Page 102: Information Displayed On The Keypad

    5.1 Communications Dedicated Function Codes 5.1.4 Information displayed on the keypad The function codes used to read, via RS-485, information displayed on the keypad are classified into W codes, X codes, and Z codes. All of these function codes are for read only. The function codes shown in Tables 5.14 to 5.16 correspond to the menu numbers displayed on the LEDs on the keypad shown in the "LED display"...
  • Page 103 Table 5.14 Keypad-related function code (W codes) Support Code Name Monitor range Min step Unit Remarks display Mini Eco Multi MEGA − 3_07 Operation status 0000H to FFFFH Frequency reference 0.00 to 655.35 0.01 3_05 3_00 Output frequency 0.00 to 655.35 0.01 (before slip compensation)
  • Page 104 5.1 Communications Dedicated Function Codes Table 5.14 Keypad-related function code (W codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Eco Multi MEGA − − Operation command 0 to 23 source − − Frequency and PID 0 to 36 command source ×...
  • Page 105 *1 Operation command source code Indicates the current source of operation commands. Code Description Mini Multi MEGA Run by the keypad (rotation direction: depends on the terminal input) Run by the terminals Run by the keypad (forward rotation) Run by the keypad (reverse rotation) ×...
  • Page 106 5.1 Communications Dedicated Function Codes Table 5.14 Keypad-related function code (W codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA × × × Teminal [32] input -12.0 to 12.0 4_20 voltage × × × 4_21 Teminal [C2] input 0.0 to 30.0...
  • Page 107 Table 5.14 Keypad-related function code (W codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA × × × − 3_17 Stop Position 0 to 9999 Pulse(Lower column) × × × − 3_19 Difference Pulse of -999 to 999 Position(Upper column)
  • Page 108 5.1 Communications Dedicated Function Codes Table 5.14 Keypad-related function code (W codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA × − Data used integrating 0.000 to 9999 Variable 5_10 Value electric power calculated as integral power consumption (kWh)
  • Page 109 Table 5.15 Keypad-related function codes (X codes) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA − &al Alarm history (latest) 0000 to FFFF Contents of 1 in alarm list (example: ! 0l1 − Multiple alarm 1 (latest) 0000 to FFFF 6_16...
  • Page 110 5.1 Communications Dedicated Function Codes Table 5.15 Keypad-related function codes (X codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA × × (internal air temperature) 0 to 255 °C 6_10 6_11 (heat sink temperature) 0 to 255 °C −...
  • Page 111 Table 5.16 Keypad-related function codes (Z codes) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA 0.00 to 655.35 0.01 6_00 Second last info. on alarm (output frequency) 6_01 (output current) 0.00 to 9999 Variable 0.00 to 655.35 0.01 6_01 (inverter...
  • Page 112 5.1 Communications Dedicated Function Codes Table 5.16 Keypad-related function codes (Z codes) (Continued) Support Code Name Monitor range Min step Unit Remarks display Mini Multi MEGA Third last info. on 0.00 to 655.35 0.01 6_00 alarm (output frequency) 6_01 (output current) 0.00 to 9999 Variable 0.00 to 655.35 0.01...

  • Page 113: Data Formats

    Data Formats 5.2.1 List of data format numbers The following table shows the communications data format numbers for function code data. Create data according to the data format specifications described below. For the data setting range and setting unit, see the User's Manual of each inverter type (Chapter 9 for FRENIC-Mini/Eco/Multi, and Chapter 5 for FRENIC-MEGA.) The "Support"...
  • Page 114 5.2 Data Formats Table 5.17 List of data format numbers (F codes) (Continued) Format Support Code Name number Mini Multi MEGA × × Terminal [FMA*1] (Function selection) × × × Terminal [FM] (Function selection) × Terminal [FMA*1] (Gain to output voltage) ×...
  • Page 115 Table 5.18 List of data format numbers (E codes) Format Support Code Name number Mini Eco Multi MEGA Terminal [X1] Function Terminal [X2] Function Terminal [X3] Function × Terminal [X4] Function × Terminal [X5] Function × × × Terminal [X6] Function ×...
  • Page 116 5.2 Data Formats Table 5.18 List of data format numbers (E codes)(Continued) Support Format Code Name number Mini Eco Multi MEGA × × Frequency Arrival (Hysteresis width) Frequency Detection (FDT)(Detection level) × Frequency Detection (FDT)(hysteresis width) Overload early warning/Current detection 1 (level) [24] (FGI) [19] (RTU) ×...
  • Page 117 Table 5.19 List of data format numbers (C codes) (Continued) Format Support Name number Code Mini Multi MEGA Multi-Frequency 4 Multi-Frequency 5 Multi-Frequency 6 Multi-Frequency 7 × × Multi-Frequency 8 × × Multi-Frequency 9 × × Multi-Frequency 10 × × Multi-Frequency 11 ×...
  • Page 118 5.2 Data Formats Table 5.20 List of data format numbers (P codes) Format Support Code Name number Mini Multi MEGA × Motor 1 (No. of poles) Motor 1 (Rated Capacity) When P99 = 0, 2 to 4 [11] When P99 = 1 [25] Motor 1 (Rated current) [24] (FGI)
  • Page 119 Table 5.21 List of data format numbers (H codes) (Continued) Format Support Code Name number Mini Multi MEGA × Restart Mode after Momentary Power Failure (Restart time) × Restart Mode after Momentary Power Failure (Frequency fall rate) [5] *1 × ×...
  • Page 120 5.2 Data Formats Table 5.21 List of data format numbers (H codes) (Continued) Format Support Code Name number Mini Multi MEGA × × Reserved. × × Reserved. × Reserved. × Reserved. × PID feedback disconnection detection × × Continue to Run (P-component: gain) [7] *1 ×...
  • Page 121 Table 5.22 List of data format numbers (A codes)(Continued) Format Support Code Name number Multi MEGA Mini × × Motor 2 (%R2) × × Motor 2 (%X) × × Motor 2 (Slip compensation gain for driving) × × Motor 2 (Slip compensation response time) ×...
  • Page 122 5.2 Data Formats Table 5.23 List of data format numbers (b codes) Format Support Code Name number Multi MEGA Mini × × × Maximum frequency 3 × × × Base frequency 3 × × × Rated voltage at base frequency 3 ×...
  • Page 123 Table 5.23 List of data format numbers (b codes) (Continued) Format Support Code Name number Multi MEGA Mini × × × Speed control 3 (Output filter) × × × Cumulative Motor Run Time 3 × × × Startup Times of Motor 3 ×...
  • Page 124 5.2 Data Formats Table 5.24 List of data format numbers (r codes) (Continued) Format Support Code Name number Mini Multi MEGA × × × Motor 4 (Iron loss coefficient 2) × × × Motor 4 (Iron loss coefficient 4) × ×...
  • Page 125 Table 5.25 List of data format numbers (J codes)(Continued) Format Support Code Name number Mini Multi MEGA × PID control (Upper limit of PID process output) Eco [1] *1 Multi [2] *1 MEGA [2]*1 × PID control (Lower limit of PID process output) Eco [1] *1 Multi [2] *1 MEGA [2]*1...
  • Page 126 5.2 Data Formats Table 5.26 List of data format numbers (d codes) Format Support Code Name number Multi MEGA Mini × × × Speed Control 1 × × × Speed Control 1 × × × Speed Control 1 × × ×...
  • Page 127 Table 5.27 List of data format numbers (y codes)(Continued) Format Support Code Name number Mini Multi MEGA × RS-485 Communications (Option) (Communications error processing) × RS-485 Communications (Option) (Timer) × RS-485 Communications (Option) (Baud rate) × RS-485 Communications (Option) (Data length) ×...
  • Page 128 5.2 Data Formats Table 5.29 List of data format numbers (M codes) Format Support Code Name number Mini Multi MEGA Frequency reference (p.u.) (Final command) [29] × × × Torque command (Final command) × × × Torque current command (Final command) ×...
  • Page 129 Table 5.29 List of data format numbers (M codes) (Continued) Format Support Code Name number Mini Multi MEGA Life of main circuit capacitor Life of PC board electrolytic capacitor Life of heat sink Input terminal voltage [12] (p.u.) [29] Input terminal current [C1] (p.u.) [29] ×...
  • Page 130 5.2 Data Formats Table 5.30 List of data format numbers (W codes) Format Support Code Name number Mini Multi MEGA Operation status [16] Frequency reference [22] Output frequency (before slip compensation) [22] × Output frequency (after slip compensation) [22] Output current [24] (FGI) [19] (RTU) ×...
  • Page 131 Table 5.30 List of data format numbers (W codes) (Continued) Format Support Code Name number Mini Multi MEGA × × Situation of output terminals on DIO option Multi [1] MEGA [78] × × Pulse input (Master - side A/B phase) ×...
  • Page 132 5.2 Data Formats Table 5.31 List of data format numbers (X codes) Format Support Code Name number Mini Multi MEGA Alarm history (latest) [41] Multiple alarm 1 (latest) [40] Multiple alarm 2 (latest) [40] × Sub code Alarm history (last) [41] Multiple alarm 1 (last) [40]...
  • Page 133 Table 5.32 List of data format numbers (Z codes) Format Support Code Name number Mini Multi MEGA Second last info. on alarm (output frequency) [22] (output current) [24] (FGI) [19] (RTU) × [24] (BUS) *1 (output voltage) × (Torque) (set frequency) [22] (operation status) [16]...

  • Page 134: Data Format Specifications

    5.2 Data Formats 5.2.2 Data format specifications The data in the data fields of a communications frame are 16 bits long, binary data, as shown below. 16-bit binary data For the convenience of description, 16-bit data is expressed in hexadecimal with one upper-order byte (eight bits from 15 to 8) and one lower-order byte (eight bits from 7 to 0).
  • Page 135 Data format [7] Decimal data (positive): Minimum step 0.001 (Example) When F51( electronic thermal (permissible loss)) = 0.105kW ⇒ 0.105 x 1000 = 105 = 0069 Consequently, Data format [8] Decimal data (positive/negative): Minimum step 0.001 (Example) When the data is -1.234 ⇒...
  • Page 136 5.2 Data Formats Code Description Code Description Motor overload warning Low torque detected Cooling fin overheat Thermistor detected (PTC) warning Life warning Machine life (accumulated operation hours) Command loss Machine life (No. of starting times) PID warning output Simulated error 0υ1 (Example) In the case of overvoltage (during acceleration) ( ⇒...
  • Page 137 Data format [11] Capacity code (unit: kW) As shown in the table below, the capacity (kW) is multiplied by 100. Table 5.34 Capacities and data Capacity (kW) Data Capacity (kW) Data Capacity (kW) Data 0.06 2200 28000 3000 31500 3700 35500 4500 40000...
  • Page 138 5.2 Data Formats Data format [14] Operation command 11*1 X5 X4 X3 (REV) (FWD) Unused ↑ General-purpose General-purpose input FWD: Forward terminal input command Alarm reset REV: Reverse command *1 bit11: The EN terminal is a bit dedicated for monitor and the terminal command cannot be input through communications.
  • Page 139 Data format [17] Model code Model Generation Destination Input power supply Table 5.35 List of model codes Code Model RHC RHR Lift (1667Hz) (3000Hz) Generation 11 series 7 series 1 series RHR A PLUS series series RHC C series Destination Japan Asia China...
  • Page 140 5.2 Data Formats Data format [20] Communications error Table 5.36 Communications error codes (common to both protocols) Code Description Code Description Checksum error, CRC error Framing error, overrun error, buffer ⇒ No response ⇒ No response full ⇒ No response Parity error Table 5.37 Communications error codes (for Fuji general-purpose inverter protocol) Code...
  • Page 141 Data format [23] Polarity + decimal data (positive) (for Fuji general-purpose inverter protocol) Decimal data (positive): Resolution 0.01Hz 16-bit binary data ⇒ 4-digit ASCII code For reverse rotation, add a negative sign (-) (ASCII) to the special additional data in the standard frame, or for forward rotation, enter a space (ASCII).
  • Page 142 5.2 Data Formats Data format [25] Capacity code (for HP) As shown in the table below, the capacity (HP) is multiplied by 100. Table 5.39 Capacities and data (for HP) Code Capacity (HP) Code Capacity (HP) Code Capacity (HP) 0.07 3000 40000 (reserved)
  • Page 143 Data format [40] Alarm factor Alarm caused by Order of alarm Alarm code (See Table 5.33.) multiple factors (1 to 5) occurrences (1 to 5) Data format [41] Alarm history Number of serial occurrences of same alarm Alarm code (See Table 5.33.) Indicates the content of an alarm that has occurred and the number of serial occurrence times of the alarm.
  • Page 144 5.2 Data Formats Data format [45] Floating point data Exponent Mantissa Exponent: 0-3 Mantissa: 0 to 9999 (exponent-3) The value expressed by this format = the mantissa × 10 (exponent-3) Numeric value Mantissa Exponent 0.000 to 9.999 0 to 9999 0.001 10.0 to 99.9 1000 to 9999...
  • Page 145 Data format [68] Frequency command source codes Code Description Remarks Keypad key operation Same with the selections for F01 Voltage input (Terminal [12]) Current input (Terminal [C1]) Voltage input (Terminal [12]) + Current input (Terminal [C1]) Inverter body volume Voltage input (Terminal [V2]) UP/DOWN Keypad key operation (Balanceless, bumpless functions are activated.)
  • Page 146 5.2 Data Formats Data format [75] Integer data (positive) + [P] Exception for position control Based on the positive integer data, setting of “-1” is permitted exceptionally. When “-1” is set on the touch probe or the loader, [P] is displayed. Data format [76] Operating status 2 Spare Spare Spare Spare Spare Spare Spare Spare Speed...
  • Page 148 FRENIC-Eco to coexist on an APOGEE network with other FLN devices. A Fuji Electric systems representative is responsible for proper configuration of the drive for its primary application, while a Siemens Building Technologies, Inc. representative is responsible for field panel programming, to make use of the drive’s functionality in the building automation system.
  • Page 149 6.6.3 Lock the FRENIC-Eco panel..................6-4 6.6.4 Digital Outputs ....................... 6-4 6.6.5 Analog Inputs monitor....................6-5 6.6.6 Loop gains ........................6-5 6.6.7 Reading and resetting faults ..................6-5 6.6.8 Address limitations......................6-5 6.6.9 Point 90,91,92,93 Read/Write Parameter Number (Parameter Data)......6-10 6.6.10 Reading and Writing from/to Inverter's Function Codes..........

  • Page 150: Messages

    6.1 Messages Messages 6.1.1 polling/selecting When the FRENIC-Eco receives a request frame from the host addressed to itself (local station), the FRENIC-Eco sends back a response frame. Polling/ Selecting Host Request frame Inverter Response frame less than 25ms Point Database Table 6.3 presents the point database information for FLN.

  • Page 151: Using The Frenic-Eco

    FRENIC-Eco. A Siemens Building Technologies representative must communicate all control requirements to a factory trained Fuji Electric systems representative before setting up the FRENIC-Eco. The Fuji Electric systems representative must implement these strategies, tasks, and functions prior...

  • Page 152: Strategies

    6.5 Strategies Strategies Monitoring 6.5.1 Several drive parameters are available for monitoring purposes. These include DR.FREQUENCY (Point DR.TORQUE(Point4), DR.CURRENT (Point DR.VOLTAGE (Point 6), DR.POWER (Point 7), OPERAT.TIME (Point 8), and INTEGRAT.PWR (Point 9). These points can be unbundled for monitoring or used in various global control strategies.

  • Page 153: Slaving The Drive

    To unbundle the feedback (PID FEEDBACK) for monitoring in degrees Fahrenheit: New Intercept = 30 New Slope = (Desired Range) × (Slope of Existing Point) Range of Existing Point (250 - 30 degrees Fahrenheit) × (0.01) = 0.022 100 - 0% Slaving the Drive 6.5.3 In this strategy, the sensor is connected to the APOGEE network at a remote location,...

  • Page 154: Analog Inputs Monitor

    PID P GAIN (Point 52) and PID I TIME (Point 53) are gain parameters similar to the P and I gains in the APOGEE TECs. The Fuji Electric systems PID loop is structured differently than the Siemens loop, so there is not a one-to-one correspondence between the gains.
  • Page 155 Table 6.2 FRENIC-Eco Drive Faults. Fault Number Meaning Overcurrent in acceleration (OC1) Overcurrent in deceleration (OC2) Overcurrent in constant speed (OC3) Earth fault (EF) Overvoltage in acceleration (OU1) Overvoltage in deceleration (OU2) Overvoltage in constant speed or stopping (OU3) Undervoltage (LU) Input phase loss (Lin) Fuse blowout (FUS) Charging circuit abnormal (PbF)
  • Page 156 6.6 Other Functionality Table 6.3 Point Database for FLN. Point Point Subpoint Name Factory Default Engr. Units Slope Intercept On Text Off Text Number Type (SI Units) (SI Units) (SI Units) Units) CTRL ADDRESS – – – APPLICATION 2743 – –...
  • Page 157 Table 6.3 Point Database for FLN. Point Point Subpoint Name Factory Default Engr. Units Slope Intercept On Text Off Text Number Type (SI Units) (SI Units) (SI Units) Units) {41} – {42} – {44} – {50} UNI.ANLG.OUT 0.01 -150 – –...
  • Page 158 6.6 Other Functionality Table 6.4 Point Database for FLN. Point Number Subpoint Name Parameter CTRL ADDRESS y01 : RJ45 port y11 : Optional port DR.FREQUENCY DR.TORQUE DR.CURRENT DR.VOLTAGE DR.POWER OPERAT. TIME INTEGRAT.PWR READY M70 (Bit 2) IN ACCEL M14 (Bit 9) IN DECEL M14 (Bit 10) DRIVE.AT.REF...

  • Page 159: Point 90,91,92,93 Read/Write Parameter Number (Parameter Data)

    Table 6.4 Point Database for FLN. Point Number Subpoint Name Parameter S06 (Bit 2) S06 (Bit 3) S06 (Bit 4) S06 (Bit 5) S06 (Bit 6) UNIVRSL.DO.1 S07 (Bit 0) UNIVRSL.DO.2 S07 (Bit 1) UNIVRSL.DO.3 S07 (Bit 2) UNIVRSL.DO.5 S07 (Bit 4) FAULT M14 (Bit 11) FAULT RESET...

  • Page 160: Reading And Writing From/To Inverter's Function Codes

    6.6 Other Functionality It is similar for the lower limit value. Reading and Writing from/to Inverter's Function Codes 6.6.10 Inverter's function code group Function code number Inverter's function code group: Group of function codes (F, E, C etc.). See Table 6.5 below. Function code number: 2-digit number following the function code group.
  • Page 162 ===Appendix=== CHAPTER 7 Metasys N2 (N2 PROTOCOL) Metasys N2 is a serial communication system protocol from the Johnson Controls company that is layered on top of an EIA RS-485 hardware platform. It is primarily a fieldbus used by the building and automation industries.
  • Page 164 7.1 Messages Messages 7.1.1 Transmission Specification Item Specification Physical level EIA RS-485 Transmission distance 1640 ft (500 m) max Number of nodes 255 total Transmission speed 9600 (bits/s) fixed Transmission mode Half duplex Bus topology Master-Slave communication Character code ASCII 7bits fixed Character length 8 bits fixed Stop bit...

  • Page 165: Point Mapping Tables

    Point mapping tables Point mapping tables AI BI NPT NPA Units Description Range, Value Notes Output Frequency 0 to 655.35 Actual Torque -327.68 to 327.67 Output Current 0 to 399.99 Motor output power -327.68 to 327.67 Vrms Output Voltage 0.0 to 1000.0 Fault memory 0 0 to 127 Last Fault...

  • Page 166: Read / Write Parameter

    Read / Write Parameter Read Parameter Number, Write Parameter Number Code Group Code name 0x00 Reserve. 0x02 Command data 0x03 Monitor data 0x04 Fundamental Functions 0x05 Extension Terminal Functions 0x06 Control Functions of Frequency 0x07 Motor Parameters 0x08 High Performance Functions 0x09 Reserve.

  • Page 167: Support Command List

    7.5 Support Command List Support Command List Support Command List 1 Synch Time No Action. Read Memory NAK 01 Poll Without ACK Poll With ACK Warm Start NAK 01 Status Update Request See *1 Read Analog Input Byte (Object Configuration) Read Analog Input Byte (Object status &...
  • Page 168 Support Command List 2 Read Analog Output Byte (Object Configuration) Read Analog Output Byte (Object status) Read Analog Output Float (Current Value) Read Analog Output Float NAK 11 Read Binary Output 0-18 Byte (Object Configuration) Read Binary Output 0-18 Byte (Object status) Read Binary Output 0-18...
  • Page 169 7.5 Support Command List Support Command List 3 Write Analog Output Byte (Object Configuration) Write Analog Output NAK 11 Write Binary Output 0-18 Byte (Object Configuration) Write Binary Output 0-18 Byte NAK 11 (Object status) Write Binary Output 0-18 Integer ACK No Action (Minimum On-time) Write Binary Output...
  • Page 170 Support Command List 4 Identify Device Type Device code=”10” Upload Request Upload Record Upload Complete Download Request Download Record Download Complete...
  • Page 172 First edition: October 2002 Fifth edition: July 2009 Fuji Electric Systems Co., Ltd. ● We prepared and examined the contents of this manual with extreme care. However, if you have any questions or notice errors, omissions, misprints, etc., please contact us.

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