Yokogawa PR300 Power and Energy Meter User Manual
User’s manual
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Table of contents
Document Outline
- Introduction
- Documentation Conventions
- Notices
- CONTENTS
- 1. Communications Overview
- 2. Setup
- 3. Procedures for Setting PR300 Functions
- 4. PC Link Communication Protocol
- 4.1 Overview
- 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
- 4.4 Sample Program
- 5. Modbus/RTU and ASCII Communication Protocols
- 6. Modbus/TCP Communication Protocol
- 7. Functions and Usage of D Registers
- 8. PR201 Original Communication Protocol
- Appendix Table of ASCII Codes (Alphanumeric Codes)
- Revision Information