Document Outline

• Introduction
• Documentation Conventions
• Notices
• CONTENTS
• 1. Communications Overview
  • 1.1 RS-485 Communication Specifications
  • 1.2 Ethernet Communication Specifications
• 2. Setup
  • 2.1 Setup Procedure
    • 2.1.1 Procedure for RS-485 Communication
    • 2.1.2 Procedure for Ethernet Communication
    • 2.1.3 Procedure for Ethernet-Serial Gateway Function
  • 2.2 Setting Communication Conditions
    • 2.2.1 Conditions for RS-485 Communication
    • 2.2.2 Conditions for Ethernet Communication
    • 2.2.3 Conditions for Ethernet-Serial Gateway Function
  • 2.3 Wiring for Communication
    • 2.3.1 Wiring for RS-485 Communication
    • 2.3.2 Wiring for Ethernet Communication
    • 2.3.3 Wiring for RS-485 Communication for Ethernet-Serial Gateway Function
• 3. Procedures for Setting PR300 Functions
  • 3.1 Basic Setting
    • 3.1.1 Setting of VT Ratio
    • 3.1.2 Setting of CT Ratio
    • 3.1.3 Setting of Integrated Low-cut Power
  • 3.2 Setting Pulse Output
    • 3.2.1 Selection of Measurement Item for Pulse Output
    • 3.2.2 Pulse Unit
    • 3.2.3 ON Pulse Width
  • 3.3 Setting Analog Output
    • 3.3.1 Selection of Measurement Item for Analog Output
    • 3.3.2 Upper/Lower Limits of Scaling
  • 3.4 Demand Setting
    • 3.4.1 Demand Power/Current
    • 3.4.2 Demand Period
    • 3.4.3 Demand Alarm Mask Time
    • 3.4.4 Demand Power Alarm Point
    • 3.4.5 Demand Current Alarm Point
    • 3.4.6 Demand Alarm Release Function
  • 3.5 Communication Setting
    • 3.5.1 Protocol
    • 3.5.2 Baud Rate
    • 3.5.3 Parity
    • 3.5.4 Stop Bit
    • 3.5.5 Data Length
    • 3.5.6 Station Number
    • 3.5.7 IP Address (for Ethernet communication)
    • 3.5.8 Subnet Mask (for Ethernet communication)
    • 3.5.9 Default Gateway (for Ethernet communication)
    • 3.5.10 Port Number (for Ethernet communication)
  • 3.6 Writing Energy Values
    • 3.6.1 Active Energy
    • 3.6.2 Regenerative Energy
    • 3.6.3 LEAD Reactive Energy
    • 3.6.4 LAG Reactive Energy
    • 3.6.5 Apparent Energy
  • 3.7 Executing Reset Operations
    • 3.7.1 Remote Reset
    • 3.7.2 Maximum/Minimum Values Reset
    • 3.7.3 Energy Value All-Reset
    • 3.7.4 Active Energy Reset
    • 3.7.5 Regenerative Energy Reset
    • 3.7.6 Reactive Energy Reset
    • 3.7.7 Apparent Energy Reset
  • 3.8 Setting Control States
    • 3.8.1 Integration Start/Stop
    • 3.8.2 Optional Integration Start/Stop
    • 3.8.3 Demand Measurement Start/Stop
    • 3.8.4 Confirmation and Release of Demand Alarm State
• 4. PC Link Communication Protocol
  • 4.1 Overview
    • 4.1.1 Configuration of Command
    • 4.1.2 Configuration of Response
    • 4.1.3 Response Error Codes
    • 4.1.4 Specifying Broadcast
  • 4.2 Command and Response
    • WRD Reads D registers on a word-by-word basis
    • WWR Writes data into D registers on a word-by-word basis
    • WRR Reads D registers on a word-by-word basis in random order
    • WRW Writes data into D registers on a word-by-word basis in random order
    • WRS Specifies the D registers to be monitored on a word-by-word basis
    • WRM Monitors the D registers on a word-by-word basis
    • INF6 Reads the model, suffix codes, and version information
    • INF7 Reads the maximum value of CPU
  • 4.3 Communication with Higher-level Devices
    • 4.3.1 Communication with FA-M3 (UT Link Module)
  • 4.4 Sample Program
    • 4.4.1 Example of BASIC Program for Send and Receive
• 5. Modbus/RTU and ASCII Communication Protocols
  • 5.1 Overview
    • 5.1.1 Configuration of Message
    • 5.1.2 Specifying D Registers
    • 5.1.3 Checking Errors
    • 5.1.4 Configuration of Response
    • 5.1.5 Specifying Broadcast
  • 5.2 Message and Response
    • 03 Reads data from multiple D registers
    • 06 Writes data into D register
    • 08 Performs loop back test
    • 16 Writes data into multiple D registers
• 6. Modbus/TCP Communication Protocol
  • 6.1 Overview
  • 6.2 TCP/IP Communication
  • 6.3 Network Frame Structure
    • 6.3.1 MBAP Header Structure
    • 6.3.2 PDU Structure
  • 6.4 Communication with Higher-level Devices
    • 6.4.1 List of Function Codes
    • 6.4.2 Specifying D Registers
    • 6.4.3 Request and Response
      • 03 Reads data from multiple D registers
      • 06 Writes data into D register
      • 08 Performs loop back test
      • 16 Writes data into multiple D registers
    • 6.4.4 Response Error Codes
  • 6.5 Sample Program
  • 6.5.1 Example of BASIC Program for Send and Receive
• 7. Functions and Usage of D Registers
  • 7.1 Overview of D Registers
  • 7.2 Configuration of D Registers
  • 7.3 Interpretation of D Register Map Table
  • 7.4 D Register Map
• 8. PR201 Original Communication Protocol
  • 8.1 Overview
  • 8.2 Communication Specifications
  • 8.3 Command/Response Format
  • 8.4 List of Commands
  • 8.5 Command Details
• Appendix Table of ASCII Codes (Alphanumeric Codes)
• Revision Information