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i-SERIES
Omega i-SERIES User Manual
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4.5
Of
fset 5 = 694 - (694 - 444) / (2500 - 2000) x 2500 = -556
RDGOFF5.19~0 = 556 Dec = 22C Hex
RDGOFF5.22~20 = 2 (DP+2)
RDGOFF5.23 = 1 (Offset is negative)
Send command: *W41A0022C
4.6
Of
fset 6 = 1000 - (1000 - 694) / (3000 - 2500) x 3000 = -836
RDGOFF6.19~0 = 836 Dec = 344 Hex
RDGOFF6.22~20 = 2 (DP+2)
RDGOFF6.23 = 1 (Offset is negative)
Send command: *W42A00344
Hard reset command (*Z02) should be sent at the end in order to load changes
into V
olatile memory
.
47
50
52
Table of Contents
Table of Contents
3
Part 1: before You Begin
6
Part 2: Introduction to Digital Communication
7
Overview
7
Definition of Terms
7
Figure 2.1 Transmission of "C
8
Part 3: Hardware
9
Communication Interfaces
9
Wiring RS-232 Interface
9
Table 3.1 Communication Interface
9
Wiring RS-485 Interface
10
Figure 3.1 DB9 and RS-232 Wiring
10
Figure 3.2 DB25 and RS-232 Wiring
10
Table 3.2 Wiring RS-232 Interface
10
Figure 3.3 Multipoint, Half-Duplex RS-485 Wiring
11
Table 3.3 RS-485 Half Duplex Hook-Up
12
Part 4: Communication Setup
13
Flow Chart
13
Figure 4.1 Flow Chart for Communication Option
13
Setup the I-Series Device through the Front Panel
14
Abbreviations, Range, Default Setup
14
Table 4.1 Abbreviations, Range, Default Setup
14
Part 5: I-Series Protocol
17
Command Structure
17
Table 5.1 Command Prefix Letters
17
Command Formats
18
Table 5.2 Command Formats
18
Table 5.3 Command Letters and Suffix
18
Table 5.4 Command Letters and Suffix
20
Response Format
23
Table 5.5 Echo Mode
23
Table 5.6 no Echo Mode
23
Error Message
24
Alarm Status Characters
24
Table 5.7 Error Message
24
Table 5.8 Alarm Status Characters
24
Examples of Transmitted Data
25
Command Formats
26
Input Type (Command Index 07)
26
Input Type for Temperature/Process
26
Input Type for Process/Strain Gauge
27
Reading Configuration (Command Index 08)
27
Reading Configuration for Temperature/Process
27
Reading Configuration for Process/Strain Gauge
28
Linearization Points (Command Index 29)
28
Color Display (Command Index 11)
29
Alarm 1 Configuration (Command Index 09)
29
Alarm 1 Low (Command Index 12)
30
Alarm 2 Configuration (Command Index 0A)
30
Output 1 Configuration (Command Index 0C)
31
Output 2 Configuration (Command Index 0D)
31
Communication Parameters (Command Index 10)
32
Bus Format (Command Index 1F)
32
Data Format (Command Index 20)
33
Miscellaneous (Command Index 24)
33
Low and % Hi (Command Index 27 and 28)
34
Reading Scale and Offset
34
(Command Index 14 and 3A)
34
Table 5.9 Conversion Number
34
Grouping Commands with the same Formats
37
Table 5.10 Commands with Numeric Data Format
37
Part 6: Modbus Protocol
38
Introduction
38
RTU Mode
38
Device Address
39
Function Code
39
Data Field
39
CRC Checking
40
Modbus RTU Registers
41
Table 6.2 Modbus Registers
41
Command Format
42
Read Multiple Register (03 or 04)
42
Write to Single Register (06)
43
Table 6.1 Function Code
44
Diagnostic Command
45
Error Response
45
Appendix A Reading Scale and Offset
47
Table A.1 Conversion Number
47
Table A.2 Input Resolution Multiplier
47
APPENDIX Bascii Chart
52
ASCII Control Codes
53
Appendix C Examples of CRC Calculation
54
Example of CRC Calculation in "C" Language
57
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Omega i-SERIES Specifications
General
Brand
Omega
Model
i-SERIES
Category
Controller
Language
English
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