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E5CN
Omron E5CN Manual
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SECTI
ON 5 M
odbus Communicat
ions Pr
ocedure
5-20
(3) Exam
ple Comma
nd and
Respon
se
The f
ollowing e
xample shows
the command/r
esponse f
or an Echobac
k
T
est comma
nd.
(In this
case, the te
st data is
H’123
4.)
(In this
case, the s
lav
e add
ress i
s H’01.)
01
08
00 00
12 34
ED
7C(CRC-16)
01
08
00 00
12 34
ED
7C(CRC-16)
Command:
Response:
88
90
Table of Contents
Default Chapter
2
Preface
2
Read and Understand this Manual
3
Application Considerations
3
Disclaimers
4
Safety Precautions
5
Precautions for Safe Use
8
Related Manuals
10
Conventions Used in this Manual
10
Table of Contents
12
Communications Methods
14
Overview of Communications Methods
15
Introduction
15
Communications Specifications
16
Transmission Procedure
16
Interface
17
Wiring
17
Communications Parameters
18
Communications Parameter Setup
18
Communications Parameters
19
Section 1
14
Section 2
22
Compoway/F Communications Procedures
22
Data Format
23
Command Frame
23
Response Frame
24
BCC Calculation Example
24
Communications Data
25
End Code Example
25
Structure of Command Text
27
PDU Structure
27
Area Definitions
27
Type Code (Variable Type)
27
Addresses
28
Number of Elements
28
List of Services
28
Detailed Description of the Services
30
Read Variable Area
30
Write Variable Area
31
Read Controller Attributes
33
Read Controller Status
34
Echoback Test
35
Operation Command
36
Response Code List
41
Section 3
42
Communications Data for Compoway/F and SYSWAY
42
Variable Area (Setting Range) List
43
Status
56
Data Format
61
Command Frame Format
61
FCS Calculation Example
61
Response Frame
62
Communications Data
62
SYSWAY Command Lists
63
Command Descriptions
64
Read Process Value
64
Write Set Values
65
Read Set Values and MV Monitor
66
Select Communications Writing
68
Section 5
70
Modbus Communications Procedure
70
Data Format
71
Command Frame
71
Calculation Example
72
Response Frame
73
Normal Response Frame
73
Error Response Frame
73
Error Codes
74
No Response
74
Function List
75
Variable Area
76
Addresses
76
Number of Elements
77
Set Values
77
Detailed Description of the Services
78
Read Variable Area
78
Write Variable Area
80
Operation Commands
83
Echoback Test
88
Section 6
90
Communications Data for Modbus
90
Variable Area (Setting Range) List
91
Status
104
Appendix
108
ASCII List
108
Revision History
112
Other manuals for Omron E5CN
User Manual
320 pages
Guide
25 pages
Datasheet
22 pages
Features
32 pages
Instruction Manual
2 pages
4
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Omron E5CN Specifications
General
Brand
Omron
Model
E5CN
Category
Temperature Controller
Language
English
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