ABB 8241 Manuals

Manuals and User Guides for ABB 8241. We have 1 ABB 8241 manual available for free PDF download: Operating Instructions Manual

ABB 8241 Operating Instructions Manual

ABB 8241 Operating Instructions Manual (28 pages)

8240 Series. MODBUS Communication Supplement

Brand: ABB | Category: Measuring Instruments | Size: 1.02 MB

Table of Contents

Table of Contents
3
1 Introduction

4
2 Preparation

4
- Company Standard Settings
  4
3 Installation

5
- Serial Communication Adaptors for Personal Computers
  5
  - Five-Wire Configuration
    5
  - Three-Wire Configuration
    5
4 Electrical Connections

5
- Serial Connections
  5
  - Five-Wire Cable
    5
  - Three-Wire Cable
    5
5 Setting up

7
- Termination Resistors
  7
6 Programming

8
- Serial Interface Page
  8
7 Modbus Protocol

9
- Introduction to MODBUS Protocol
  9
- MODBUS Function Codes
  9
8 Modbus Functions

10
- Read Coil Status
  10
  - Read Coil Status Query
    10
  - Read Coil Status Response
    10
- Read Holding Register
  10
  - Read Holding Register Query
    10
  - Read Holding Register Response
    11
- Force Single Coil
  11
  - Force Single Coil Query
    11
  - Force Single Coil Response
    11
- Preset Single Register
  12
  - Preset Single Register Query
    12
  - Preset Single Register Response
    12
- Loopback Test
  13
  - Loopback Test Query
    13
  - Loopback Test Response
    13
- Preset Multiple Registers
  13
  - Preset Multiple Registers Query
    13
  - Preset Multiple Registers Response
    13
- Exception Responses
  
  14
  - Examples
    14
- Modbus Coils and Registers
  
  15
  - Single-Stream Silica Monitor, Model 8241/185
    15
    
    Coils
    15
    
    Holding Registers
    16
  - Multi-Stream Silica Monitor, Model 8241/195
    18
    
    Coils
    18
    
    Holding Registers
    18
  - Single-Stream Phosphate Monitor, Model 8242/185
    19
    
    Coils
    19
    
    Holding Registers
    20
  - Multi-Stream Phosphate Monitor, Model 8242/195
    22
    
    Coils
    22
    
    Holding Registers
    22
11 Operation

23
12 Specification

25
Appendices

25
- A1 Non-Volatile Memory Limitations
  25

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