Mitsubishi 2404f User Manual
Mitsubishi 2404f User Manual

Mitsubishi 2404f User Manual

Mitsubishi network device user manual 2408f, 2404f

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2408 f & 2404 f PROFIBUS Communications Handbook
Contents
Chapter 1
INTRODUCTION
Chapter 2
PRINCIPLES OF OPERATION
Chapter 3
WIRING
Cable Specifications
Chapter 4
CONTROLLER SET UP & NETWORK CONFIGURATION
Floating Point Data Formats
Diagnostic Information
Chapter 5
THE WINDOWS CONFIGURATOR
Installing GSD Files
Chapter 6
TROUBLESHOOTING
Chapter 7
DEMAND DATA
Chapter 8
TAG ADDRESSES
Appendix A
GLOSSARY OF TERMS
Appendix B
EUROTHERM OFFICE ADDRESSES
"This product is covered by one or more of the following US Patents:
5,484,206; Additional patents pending.
PDSIO and INSTANT ACCURACY are trademarks of Eurotherm."
HA026290
Issue 1 January, 98.
CONTROLLER MODELS 2408 f and 2404 f
PROFIBUS-DP COMMUNICATIONS HANDBOOK
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Applies to 2408 f and 2404 f Controllers software versions 3.22
Contents
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Summary of Contents for Mitsubishi 2404f

  • Page 1 2408 f & 2404 f PROFIBUS Communications Handbook Contents Chapter 1 INTRODUCTION Chapter 2 PRINCIPLES OF OPERATION Chapter 3 WIRING Cable Specifications Chapter 4 CONTROLLER SET UP & NETWORK CONFIGURATION Floating Point Data Formats Diagnostic Information Chapter 5 THE WINDOWS CONFIGURATOR Installing GSD Files Chapter 6 TROUBLESHOOTING...
  • Page 2: Chapter 1 Introduction

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 1 INTRODUCTION This handbook is written for people who need to use a digital communications link and PROFIBUS-DP communication protocols to supervise Eurotherm Controls Series 2000 instruments. The PROFIBUS-DP protocol is supported by Eurotherm instruments carrying the suffix f in their order codes.
  • Page 3 Introduction 2408 f & 2404 f PROFIBUS Communications Handbook PROFIBUS-DP is a multimaster, master-slave, token passing network. More detailed information, including a detailed guide to products available, may be obtained from the various world wide PROFIBUS user organisations. You will find contact information in trade magazines or by reference to http://www.profibus.com on the World Wide Web.
  • Page 4: Chapter 2 Principles Of Operation

    2408f & 2404 f PROFIBUS Communications Handbook CHAPTER 2 PRINCIPLES OF OPERATION PROFIBUS-DP distinguishes between master devices and slave devices. It allows slave devices to be connected on a single bus thus eliminating considerable plant wiring typical with conventional communications systems. Figure 2-1 compares the two systems.
  • Page 5 Principles of Operation Typically no more than 32 bytes of input data and 32 bytes of output data are exchanged for each device during the data exchange. Some PLC masters allow no more than this, although the PROFIBUS-DP standard provides the possibility of transferring 236 bytes in each direction.
  • Page 6: Chapter 3 Wiring

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 3 WIRING RS485 is the transmission technology used in 2404 f and 2408 f PROFIBUS-DP controllers. Connections are made to the rear terminal block as follows: Controller Terminal Designation Shield D Gnd Earthing the shield The PROFIBUS standard suggests that both ends of the transmission line be connected to safety earth.
  • Page 7 Wiring Either of the two cable types detailed below can be used. Please note that the cable types A and B, specified below, are NOT related to the wire numbers A and B in the above wiring diagram. Type A is recommended as it allows higher speed and longer cable length.
  • Page 8 2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 4 CONTROLLER SET UP & NETWORK CONFIGURATION PROFIBUS-DP communications is available in Eurotherm 2408 f and 2404 f controllers. Other 2000 series controllers (i.e. controllers without the f suffix) cannot be converted to PROFIBUS-DP comms, since a different microprocessor board is required.
  • Page 9: Chapter 4 Controller Set Up & Network Configuration

    Controller Set Up & Network Configuration ONFIGURE ONTROLLER OMMUNICATIONS Select Configuration Level Press Page button “HOME” repeatedly display until Access List appears 1st press 2 secs (factory default = 1) 2nd press 3rd press password (factory default = 2) At this point the 4th press controller is in configuration level...
  • Page 10: Network Configuration

    2408 f & 2404 f PROFIBUS Communications Handbook ETWORK ONFIGURATION Having wired and configured the controller, the master PLC or PC based supervisory package must be configured to set-up the parameters that it will be able to read and write to. This is known as ‘network configuration’. The network is configured by importing ‘GSD’...
  • Page 11: Profibus Diagnostics

    Controller Set Up & Network Configuration ROFIBUS IAGNOSTICS One of the features of PROFIBUS-DP is that high priority diagnostic information is provided for each slave. The 2400 f Series uses the ‘Ext_Diag_Data’ area of this message (bytes 7 and 8) to send a word containing 16 bits of information pertaining to the process and alarm status of the controller: The documentation supplied with your master should provide further details on how to access diagnostic information.
  • Page 12: Installation

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 5 THE WINDOWS CONFIGURATOR The Windows Configurator creates a ‘GSD’ file which provides a simple way of mapping device parameters into the PLC or supervisory package input/output registers. The GSD file is imported into a PROFIBUS Master which in turn produces a file that is downloaded into the PLC or supervisory package.
  • Page 13 The Windows Configurator To add a parameter to the PROFIBUS-DP Input Data, simply drag it from the Device Parameter list using the mouse, and drop it into the Inputs list. Similarly, drop a parameter into the Outputs list to set PROFIBUS-DP Output Data. Alternatively, double click on a parameter name to add it to the currently selected window - select the list by clicking on it - or use the arrow button to the left of the input and output lists.
  • Page 14: Chapter 6 Troubleshooting

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 6 TROUBLESHOOTING No Communications: Check the wiring carefully, paying particular attention to the continuity of the A and B connections to the Master. Ensure that the correct terminals have been wired to. Access the list in configuration level and check that the function ( configured for PROFIBUS-DP.
  • Page 15: Chapter 7 Demand Data

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 7 DEMAND DATA The GSD file is used to define those parameters which need to be updated continuously. It is, therefore, a convenient way to transfer input and output data between the controller and the master PLC or Supervisory Computer. It is, however, wasteful in comms bandwidth if, for example: 1.
  • Page 16: Demand Data Structure

    Demand Data Demand Data uses the first 8 bytes in both the request and response message of the cyclic Data Exchange. DEMAND DATA STRUCTURE Read Request (from PLC) PLC Output Register Output Data Number The first four registers are reserved for demand data. The control program is responsible for writing values into these first four registers to make requests.
  • Page 17 2408 f & 2404 f PROFIBUS Communications Handbook THE COMMAND CODE AND TAG ARE ENCODED INTO REGISTER 1 AS FOLLOWS: Bits 15-12 Bit 11 Command Code Reserved Because only 11 bits are available for the Parameter Tag, the maximum tag allowable for standard demand data operations is 2048.
  • Page 18 Demand Data Worked example 1 - Starting an Autotune An autotune is a good example of an operation that might be performed using the demand data sub-protocol, since it is a relatively infrequent operation and it would be wasteful to dedicate PROFIBUS-DP I/O data to such a task. Request 1: Clear any previous demand data requests.
  • Page 19 2408 f & 2404 f PROFIBUS Communications Handbook Worked example 2 - Uploading Program Data The 2400 f series with PROFIBUS-DP may be configured with a ramp/dwell programmer option. It is often the case that specific ramp dwell sequences need to be downloaded to an instrument. Because of the amount of data involved, it would be impossible if only standard PROFIBUS-DP input and output frames were to be used.
  • Page 20: Status Tab

    2408 f & 2404 f PROFIBUS Communications Handbook CHAPTER 8 TAG ADDRESSES Tag addresses are used to identify parameters in the controller and are identical to the Modbus addresses which are also listed in the Series 2000 Communications Manual, Eurotherm Part No. HA 026230. Tag addresses are used with the demand data protcol to set up input/output data in the PLC or supervisory PC..
  • Page 21 Tag Addresses Reserved Reserved Reserved Reserved Reserved Reserved Reserved Program Logic Status DESCRIPTION Program Output 1 ( 0 = OFF 1 = ON ) Program Output 2 ( 0 = OFF 1 = ON ) Program Output 3 ( 0 = OFF 1 = ON ) Program Output 4 ( 0 = OFF 1 = ON ) Program Output 5...
  • Page 22: Alarm Tab

    2408 f & 2404 f PROFIBUS Communications Handbook Controller Run Tab Display Parameter Description Current program running (active prog no.) Program Status Reset Hold Holdback Complete Programmer setpoint Program cycles remaining Current segment number Current segment type Ramp (Rate) Ramp (Time to target) Dwell Step Call...
  • Page 23: Setpoint Tab

    Tag Addresses Controller PID Tab Display Parameter Description Gain scheduler setpoint Current PID set (read only if gain scheduling is selected) Set 1 Set 2 Proportional band PID1 Integral time PID1 Derivative time PID1 Manual reset PID1 Cutback high PID1 Auto Cutback low PID1 Auto...
  • Page 24: Input Tab

    2408 f & 2404 f PROFIBUS Communications Handbook Controller Input Tab Display Parameter Description Input 1 filter time constant Input 2 filter time constant Select input 1 or input 2 Derived input function factor 1 Derived input function factor 2 Switchover transition region high Switchover transition region low...
  • Page 25: Information Tab

    Tag Addresses Controller Information Tab Display Parameter Description Configuration of lower readout display Standard Load current Output power Status Program time None Valve position Process value 2 Ratio setpoint Selected program number 10: Remote setpoint PV minimum PV maximum PV mean value Time PV above threshold level PV threshold for timer log Logging reset...
  • Page 26 2408 f & 2404 f PROFIBUS Communications Handbook Controller Instrument Configuration Tab Display Parameter Description Control type On/Off Manual (No feedback) VP b (Feedback) Control action Reverse Direct Type of cooling Linear Water On/Off Integral and Derivative time units Seconds Minutes Hours Derivative action on:...
  • Page 27: Input Configuration

    Tag Addresses Controller Input Configuration Display Parameter Description Input type J Type K Type L Type R Type B Type N Type T Type S Type PL 2 Custom (factory) * 10: RTD * 11: Linear mV (+/- 100mV) 12: Linear V (0-10V) 13: Linear mA 14: Square root V...
  • Page 28: Programmer Configuration

    2408 f & 2404 f PROFIBUS Communications Handbook Controller Programmer Display Configuration Parameter Description Programmer type None Single program Four programs Holdback Applies to whole program Applies to each segment Power fail recovery Ramp back Reset Continue Servo Servo to PV Servo to SP Programmable event outputs Version 1 controllers:...
  • Page 29 Tag Addresses Alarm Relay Display Configuration Tab Parameter Description Module identity Module function None Digital Heat (2208/04 only) Cool (2208/04 only) Sense of output Normal Inverted Summary of AA configuration Program summary OP AA configuration Comms Module 1 Display Configuration Tab Parameter Description Comms Resolution Full...
  • Page 30 2408 f & 2404 f PROFIBUS Communications Handbook Output 2A Display Configuration Tab Parameter Description Module identity None Relay output DC output non-isolated Logic/PDSIO output Logic input Triac output 10: Error/Bad module 11: DC retransmission 12: DC output isolated 13: Transmitter power supply 14: Pot input (valve position) Module function None...
  • Page 31 Tag Addresses Output 3A Display Configuration Tab Parameter Description Module identity None Relay output DC output non-isolated Logic/PDSIO output Logic input Triac output DC input 10: Error/Bad module 11: DC retransmission 12: DC output isolated 13: Transmitter power supply 14: Pot input (valve position) Module function None Digital output...
  • Page 32 2408 f & 2404 f PROFIBUS Communications Handbook Ramp/Dwell Programmer Data Program Data Organisation A 2400 f series controller can contain multiple “programs”, each consisting of up to 16 segments. The data for each program starts at the base tag address given by the following table: Program Program 0 (Currently Running Program - changes permitted only in hold, and are not permanently stored)
  • Page 33 Tag Addresses Program General Data The offsets of each parameter within the program general data block is given by the next table: Address Offset Parameter HoldbackType HoldbackValue Ramp Units Dwell Units Program Cycles Reserved Reserved Reserved Program Segment Data Program segment data is specified using 8 tag addresses, with the contents varying depending on the type of the segment. The format per segment is detailed in the following table, which gives the offset from the start of a segment data block for each item.
  • Page 34: Glossary Of Terms

    2408 f & 2404 f PROFIBUS Communications Handbook Glossary of Terms APPENDIX A. GLOSSARY OF TERMS ASCII 2408 f and 2404 f PROFIBUS Communications Handbook...
  • Page 35 2408 f & 2404 f PROFIBUS Communications Handbook EUROTHERM CONTROLS LIMITED UK SALES OFFICE Eurotherm Controls Limited Faraday Close, Durrington Worthing West Sussex BN13 3PL Telephone Sales: (01903) 695888 Technical: (01903) 695777 Service: (01903) 695444 (01903) 695666 email http://www.eurotherm.co.uk USA SALES OFFICE Eurotherm Controls Inc 11485 Sunset Hills Rd.

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