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ABB C1300 User Manual Supplement
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ABB C1300 User Manual Supplement

Advanced circular chart recorder
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A B B M E A S U R E M E N T & A N A LY T I C S | U S E R G U I D E
C1300
Advanced circular chart recorder
For more information
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C1300 advanced circular
Further publications are available for free download
chart recorder
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User Guide supplement
Modbus communications option
Measurement made easy
C1300
Advanced circular chart recorder
Datasheet
C1300
Advanced circular chart recorder
User Guide
C1300
Advanced circular chart recorder
User Guide supplement
Advanced software options
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DS/C1300-EN
IM/C1300
IM/C1300-ADV

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Summary of Contents for ABB C1300

  • Page 1 C1300 Advanced circular chart recorder User Guide supplement Modbus communications option Measurement made easy For more information — C1300 advanced circular Further publications are available for free download Search for or click on chart recorder from: C1300 www.abb.com/measurement Advanced circular chart recorder...
  • Page 2 Electrical Safety Health and Safety This equipment complies with the requirements of CEI/IEC To ensure that our products are safe and without risk to health, 61010-1:2001-2 ‘Safety Requirements for Electrical Equipment the following points must be noted: for Measurement, Control and Laboratory Use’. If the •...

  • Page 3: Table Of Contents

    C1300 Advanced Circular Chart Recorder Contents Contents 1 Introduction ..............2 6 Exception Responses ..........13 Examples .............. 13 2 Electrical Installation ............3 Selection of Serial Communication Adaptors 7 Modbus Registers ............14 for Personal Computers ........... 3 Coils ..............14 Recommended OPTO22 Boards ......

  • Page 4: Introduction

    C1300 Advanced Circular Chart Recorder 1 Introduction 1 Introduction The C1300 can be enhanced by the addition of a serial data communication option for use with SCADA systems with:  RS422/485 communication standard  Modbus® protocol – for master (host computer) to slave (C1300) system ...

  • Page 5: Electrical Installation

    2.3 Pull-up and Pull-down Resistors o prevent false triggering of the slave (C1300) by the presence of noise when the master (host computer) is inactive, 1.8k pull-up and pull-down resistors must be fitted to the RS422/485 adaptor card – see Figs. 2.1 and 2.2.
  • Page 6 Rx– Links on Serial Module 1.8kW Pull-down Resistor Note. If an RS422/485 adaptor card without pull-up and pull-down resistors is used, the C1300's internal resistors can be linked in. Fig. 2.2 Pull-up and Pull-down Resistors (5-wire Operation) IM/C1300–MOD Rev. C...

  • Page 7: Termination Resistors

    C1300 Advanced Circular Chart Recorder 2 Electrical Installation 2.4 Termination Resistors For long transmission lines, termination resistors are required on the last slave in the chain and the host computer/computer terminal – see Fig. 2.3. Under normal operating conditions the resistors are required at the receive inputs only. For 2-wire operation the slave termination resistor is fitted to the serial module terminal board –...

  • Page 8: Serial Connections

    The maximum serial data transmission line length for both RS422 and RS485 systems is 1200m (3,937 ft). All connections, apart from those for serial data communication, are made as shown in Section 5 of the User Guide (IM/C1300). Make serial data connections as shown in Fig. 2.4. The type of cable used is dependent on the cable length: Up to 6m (20 ft) –...

  • Page 9: Modbus Configuration

    Programmable for 2- or 4-wire connections.  Programmable baud rate (1200 to 9600 baud).  Odd or even parity. All other instrument configuration procedure is detailed in the User Guide (IM/C1300). Modbus Configuration Totalizers Relays Press the key to open the Main Menu.

  • Page 10: Modbus Protocol

    Read up to 16 consecutive discrete (boolean) points from a specific starting point. Read Coil Status The C1300 returns zeros for points which do not contain defined data and NAKs* any request for point numbers greater than 200. Read up to 8 consecutive registers from a specific starting register. The C1300...

  • Page 11: Modbus Functions

    C1300 Advanced Circular Chart Recorder 5 Modbus Functions 5 Modbus Functions This section shows typical examples of Modbus function codes 01, 03, 05, 06, 08 and 16. 5.1 Read Coil Status – Function Code 01 5.1.1 Read Coil Status Query This function allows the user to obtain the ON/OFF status of logic coils used to control discrete outputs from the addressed slave only.

  • Page 12: Read Holding Register Response

    C1300 Advanced Circular Chart Recorder 5 Modbus Functions 5.2.2 Read Holding Register Response The addressed slave responds with its address and function code, followed by the information field. The information field contains 1 byte describing the quantity of data bytes to be returned. The contents of each register requested (DATA) is two bytes, the first byte includes the high order bits and the second the low order bits.

  • Page 13: Preset Single Register - Function Code 06

    C1300 Advanced Circular Chart Recorder 5 Modbus Functions 5.4 Preset Single Register – Function Code 06 5.4.1 Preset Single Register Query The preset single register allows the user to modify the contents of a holding register. Note. Function codes 5, 6 and 16 are the only messages that are recognized as valid for broadcast.

  • Page 14: Write Multiple Registers - Function Code 16

    C1300 Advanced Circular Chart Recorder 5 Modbus Functions 5.6 Write Multiple Registers – Function Code 16 5.6.1 Write Multiple Registers Query Holding registers existing within the controller can have their contents changed by this message (a maximum of 8 registers). When used with slave address zero (broadcast mode) all slave controllers load the selected registers with the contents specified.

  • Page 15: Exception Responses

    The message function received is not an allowable action for the C1300. Illegal Data Address The address reference in the data field is not an allowable address for the C1300. Illegal Data Value The value referenced in the data field is not allowable in the addressed slave location.

  • Page 16: Modbus Registers

    C1300 Advanced Circular Chart Recorder 7 Modbus Registers 7 Modbus Registers 7.1 Coils Coil Number Read/Write Description Response/Entry Input Failure States Main Input Module 2 0 = Active Module 3 1 = Failed Module 4 Module 5 A to D Converter Failure States...
  • Page 17 C1300 Advanced Circular Chart Recorder 7 Modbus Registers Coil Number Read/Write Description Response/Entry Logic Equation Results Logic Equation 1 Logic Equation 2 Logic Equation 3 Logic Equation 4 0 = Inactive Logic Equation 5 1 = Active Logic Equation 6...

  • Page 18: Holding Registers

    C1300 Advanced Circular Chart Recorder 7 Modbus Registers 7.2 Holding Registers Register Read/Write Description Response/Entry Number Analog Input 1 High Word Low Word Analog Input 2 High Word Low Word Analog Input 3 High Word Low Word Analog Input 4...

  • Page 19: Alarm Settings

    C1300 Advanced Circular Chart Recorder 7 Modbus Registers 7.3 Alarm Settings Register Read/Write Description Response/Entry Number Alarm Settings Alarm A Trip Value Channel 1 (High) Alarm A Trip Value Channel 1 (Low) Alarm B Trip Value Channel 1 (High) Alarm B Trip Value Channel 1 (Low)

  • Page 20: Chart Settings

    C1300 Advanced Circular Chart Recorder 7 Modbus Registers 7.4 Chart Settings Register Read/Write Description Response/Entry Number Chart Settings Chart Rotation Time 1 to 167 Hrs,168 = 7 Days to 193 = 32 Days Pen Lift Status 0 = Pen down, 1 = Pen up Table 7.4 Chart Settings...

  • Page 21: Totalizer Settings

    C1300 Advanced Circular Chart Recorder 7 Modbus Registers 7.5 Totalizer Settings Register Read/Write Description Response/Entry Number Predetermined Value Channel 1* High Word Low Word Preset Value Channel 1* High Word Low Word The Limit for High Word:Low Word linked Front-panel Totalizer Value Ch. 1*...

  • Page 22: Notes

    C1300 Advanced Circular Chart Recorder Notes Notes IM/C1300–MOD Rev. C...
  • Page 23 Acknowledgements Modbus is a registered trademark of the Modbus-IDA organization. IBM is a registered trademark of Sales Service Software...
  • Page 24 We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.

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