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FP-AS310 Flow Meter English Manual v1
FP-AS310 Flow Meter English Manual v1
  • ⚠Safety instructions
  • This instruction manual version is v1.0
  • Measure principle and usage scenario
  • Warranty
  • Exterior, Spec, Model
    • Device
    • Paddle set
    • T-connector
  • Installation and Configuration
    • Mechanism installation
    • Mechanical and electrical installation
    • Parameter Configuration
  • Human-Machine Interface (HMI)
    • Introduction the Human-Machine Interface (HMI)
    • 主畫面
    • Simulation Mode
    • Main Screen Data Interpretation
    • Password Entry Screen
    • Settings Screen
  • Communications
    • NPN output
    • Analog current output (4-20mA)
    • RS485 and Modbus RTU Setting
    • Modbus RTU Protocol
      • Read-only memory read instruction(04) and memory lists
      • 讀寫型記憶體讀取指令(03)
      • 讀寫型記憶體單Register寫入指令(06)
      • 讀寫型記憶體雙Register寫入指令(30)
      • Single Bit 資料讀寫指令(01/05)(人機介面常用)
  • Parameters Table
    • A Category Options and Descriptions
    • B Category Options and Descriptions
    • C Category Options and Descriptions
    • D Category Options and Descriptions
    • E Category Options and Descriptions
    • F Category Options and Descriptions
    • H Category Options and Descriptions
  • Alarm 及 系統狀態說明
  • Trouble and abnormality shooting
    • Iout 4-20mA debug process FP-AS310A
    • NPN alarm debug process FP-AS310A
    • NPN pulse Debug process FP-AS310A
    • RRS485 Debug Process FP-AS310R
  • Certification
  • FP-AS310 Product Page
  • LORRIC Website
  • LORRIC Integration and Application Center
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  • 指令範例
  • 控制端發指令(03)格式
  • 流量計回覆(03)格式
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  1. Communications
  2. Modbus RTU Protocol

讀寫型記憶體讀取指令(03)

讀取指令中register長度必需小於等於 20個 register。超過該長度的指令會被忽略。

指令範例

控制端發指令(03)格式

Byte#

1

2

3

4

5

6

7

8

Node ID

Slave Address

Function Code

讀取數據的啟始地址

讀取數據的啟始地址

讀取registers 總數

讀取registers 總數

CRC

CRC

範例內容01~FF

01

03

00

00

00

03

05

CB

控制端發訊範例說明

這個範例會讀取A01的管徑選項及A02 Scale Factor

slave address: 01(本流量計地址)

function code: 03(讀取指令)

讀取數據的啟始地址: 0000(要讀取的數據的啟始地址)

讀取registers 總數: 0003 (需要從 0000 開始讀三個 register 的記憶體)

CRC: 05 CB (依 CRC 算法計算出的糾錯碼)

流量計回覆(03)格式

Byte#

1

2

3

4

5

6

7

8

9

10

11

Node ID

Slave Address

Function Code

回覆的Byte數

Data Byte #1

Data Byte

#2

Data Byte

#3

Data Byte

#4

Data Byte #5

Data Byte

#6

CRC

CRC

範例內容01~FF

01

03

06

00

00

3F

80

00

00

2C

89

流量計回覆範例說明

slave address: 01(本流量計地址)

function code: 03(讀取指令)

回覆的Byte數: 06(3個register=6byte)

Data Byte:

  • 00 00(目前管徑是1inch PVC)

  • 3F 80 00 00(目前的Scale Factor 是 1.0)

CRC: 2C 89 (依 CRC 算法計算出的糾錯碼)

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