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V250
ABB V250 Manuals
Manuals and User Guides for ABB V250. We have
1
ABB V250 manual available for free PDF download: User Manual
ABB V250 User Manual (24 pages)
Control IT MODBUS (RTU) Communications Option
Brand:
ABB
| Category:
Controller
| Size: 0.09 MB
Table of Contents
Table of Contents
3
1 Introduction
4
2 Electrical Installation
5
Host Computer Serial Communications
5
OPTO22 Boards for Use with Personal Computers
5
Two-Wire and Four-Wire Connection
5
Pull-Up and Pull-Down Resistors
6
Termination Resistor
7
Serial Connections
7
3 Configuration
8
Accessing the Configuration Mode
8
Setting the Serial Transmission Parameters
8
Setting the MODBUS Address
8
4 Modbus Protocol
9
Introduction
9
MODBUS Function Codes
10
5 Modbus Functions
11
Read Coil Status - Function Code 01
11
Read Holding Register - Function Code 03
12
Force Single Coil - Function Code 05
13
Preset Single Register - Function Code 06
14
Loopback Test - Function Code 08
15
Write Multiple Registers - Function Code 16
16
6 Exception Responses
17
Examples
17
7 Addressable Parameters
18
COMMANDER 250/V250 - Coils
18
COMMANDER 250/V250 - Registers
18
Analog Inputs
18
Control Settings
19
Set Points
19
Alarm Settings
20
Ramp/Soak Settings
20
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