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Yamatake Azbil CMQ-V Series User Manual

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CMQ-V Series
Digital Mass Flow Controller
User's Manual
Communications
No. CP-SP-1197E
Thank you for purchasing the CMQ-V
Series Digital Mass Flow Controller.
This manual contains information for
ensuring correct use of the CMQ-V
Series communication functions.
This manual should be read by those
who design and maintain devices that
use the CMQ-V Series communication
functions. Be sure to keep this manual
nearby for handy reference.
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Yamatake Azbil CMQ-V Series Specifications

General IconGeneral
Input TypeThermocouple, RTD, DC Voltage, DC Current
SeriesCMQ-V Series
TypeDigital Indicating Controller
Control OutputRelay, Voltage Pulse
Alarm OutputRelay contact
CommunicationRS-485
Power Supply100 to 240 VAC, 50/60 Hz or 24 VAC/VDC
Display4-digit LED
Control MethodPID control
MountingPanel Mount

Summary

Safety Precautions

About Safety Icons

Explains safety icons used in the manual.

Role of the Manual

Organization of This User's Manual

Conventions Used in Manual

Details symbols and abbreviations used throughout the manual.

Chapter 1. OUTLINE

Features

Describes the capabilities of the CMQ-V communication function.

Chapter 2. WIRING

RS-485 Connection

Details connection methods for RS-485 communication.

Connector Pin Layout

Shows the pin configuration for CMQ-V series connectors.

Chapter 3. SETTING

Setting Method of Communication Functions

Describes the procedure to configure communication settings on the device.

Setting Items of Communication Functions

Lists and explains configurable communication parameters like address and speed.

Chapter 4. COMMUNICATION PROCEDURE

Outline of Communication

Provides a general overview of the communication process between devices.

Message Structure

Explains the layered structure of communication messages.

Data Link Layer Definitions

Defines the components of the data link layer in communication messages.

Application Layer

Details the structure and content of the application layer.

Continuous Data Read Command (RS Command)

Explains the RS command for reading continuous data.

Continuous Data Write Command (WS Command)

Explains the WS command for writing continuous data.

Continuous Data Read Command (RD Command)

Details the RD command for reading data in hexadecimal format.

Continuous Data Write Command (WD Command)

Details the WD command for writing data in hexadecimal format.

Termination Code Table

Lists and explains codes indicating normal, warning, or error terminations.

Timing Specifications

Covers timing requirements for messages and driver control.

Other Precautions

Provides additional notes on timing and data transfer efficiency.

Chapter 5. COMMUNICATION DATA TABLE

Basic Communication Data Processing

Covers data types, formats, and storage memory for communication.

Data Address Allocation

Details the memory addresses for various communication data types.

Device Related Data

Lists communication data related to device parameters and settings.

Operating Status Related Data

Lists data concerning the operational status of the device.

Flow Set Value Data

Details parameters for setting flow rate set points (SP).

Totalized Flow Related Data

Provides data related to totalized flow measurements and settings.

Function Setup Related Data

Lists parameters for configuring various device functions.

Parameter Setup Related Data

Details parameters for device setup and configuration.

Chapter 6. COMMUNICATION PROGRAM FOR MASTER STATION

Precautions for Programming

Provides essential guidelines for developing master station programs.

Examples of Communication Program

Offers sample programs for communication tasks.

Data Read/Write Sample Program

Presents a C++ sample program for reading and writing data.

Chapter 7. TROUBLESHOOTING

Troubleshooting Communication Issues

Lists checks for diagnosing communication failures.

Chapter 8. SPECIFICATIONS

RS-485 Specifications

Details the technical specifications for the RS-485 interface.

APPENDIX

Code Table

Provides a reference table for character codes used in communication.

Connection with CMC10L

Explains wiring and setup for connecting with the CMC10L converter.

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