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Chino KP3000 User Manual
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83 -
Format
Communication
item
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2 3 4 5 6 7 8 9
10
11
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13
14
15
16
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SV during
Reset
SX
SX
4
4
9
9
,
,
×
○
×
○
×
○
×
○
×
○
×
○
,
○
EX
○
BC
,
BC
EX
CR
BC
LF
BC
CR
LF
SV scale
SX
SX
5
5
2
2
,
,
×
○
×
○
×
○
×
○
×
○
×
○
,
○
×
○
×
,
×
○
×
○
×
○
×
○
,
○
EX
○
BC
○
BC
○
CR
,
LF
EX
BC
BC
CR
LF
S
c
a
l
e
M
I
N
S
c
a
l
e
M
A
X
85
87
Table of Contents
Cover
1
Table of Contents
3
1. Introduction
4
2. For safe use of the product
5
2-1 Prerequisites for use
5
2-2. Symbol mark
5
3. Overview
6
3-1. RS-232C communication interface
6
3-2. RS-422A/485 communication interface
6
4. Communication Protocol
7
4-1. MODBUS Protocol
7
4-2. PRIVATE Protocol
7
5. Communication Specifications
8
5-1. MODBUS
8
5-2. PRIVATE
8
6. Setting the parameters for PC communication
9
6-1. Communication speed (COM BIT RATE)
10
6-2. Set device number (COM NUMBER)
10
6-3. Set the communication function (COM KIND)
10
6-4. Setting communication protocol (COM PROTOCOL)
11
6-5. Setting communication character (COM CHARACTER)
11
7. Wiring
13
7-1. Precautions while wiring
13
7-2. Cable for communication
14
7-2-1. Communication cable for RS-232C (Between PC/Line converter)
14
7-2-2. Communication cable for RS-422A
15
7-2-3. Communication cable for RS-485
16
7-3. RS-232C connection
17
7-4. Wiring of RS-422A/485
18
8. MODBUS protocol
19
8-1. Message transmission mode
20
8-1-1. Transmission data
20
8-1-2. Configuration of the message frame
20
8-2. Data time interval
21
8-3. Message configuration
21
8-3-1. Slave address
21
8-3-2. Function code
21
8-3-3. Data division
22
8-3-4. Reference number
22
8-3-5. Error check
24
8-3-6. Precautions while processing the data
27
8-4. Method of creating a message
28
8-4-1. Message in RTU mode
28
8-4-2. ASCII mode message
29
8-5. Function code
29
8-5-1. Reading digital input data [Function code: 02 (02H)]
29
8-5-2. Reading analog setting value [Function code: 03 (03H)]
30
8-5-3. Reading analog input data [Function code: 04 (04H)]
30
8-5-4. Writing analog setting value [Function code: 06 (06H)]
31
8-5-5. Loop back test [Function code: 08 (08H)]
31
8-5-6. Writing multiple analog setting values [Function code: 16(10H)]
32
8-6. Process during abnormality
33
8-6-1. In case of no response
33
8-6-2. Response of error message
34
8-7. Reference table
35
8-7-1. Analog setting value
35
8-7-2. Analog input data (READ only)
54
8-7-3. Digital input data (READ only)
55
8-8. MODBUS protocol support reference table
56
9. PRIVATE protocol
62
9-1. Difference between RS―232C and RS-422A/485
62
9-1-1. Establishing the data link
62
9-1-2. Releasing the data link
63
9-2. Basic procedure of communication
64
9-2-1. Text format at the time of sending and receiving
64
9-2-2. Check sum
64
9-2-3. Basic procedure of communication
65
9-2-4. Control code
65
9-3. Communication format
66
9-3-1. Data request command (PC → KP)
66
9-3-2. Response output of KP to the data request command (KP → PC)
67
9-3-3. Command that moves the KP status (PC → KP)
70
9-3-4. Program pattern setting (PC → KP) [At the time of resetting only] [Mode 2 lock]
71
9-3-5. Individual parameter setting (PC → KP)
72
9-4. Positive response and negative response
73
9-4-1. Positive response
73
9-4-2. Negative response
73
9-4-3. Error code
73
9-5. Communication time chart
75
9-5-1. Response to data request
75
9-5-2. Response to command
75
9-5-3. Response to pattern setting, parameter setting
75
9-5-4. During other abnormalities
76
9-5-5. Response of PC
76
10. Communication (Digital) transmission
77
10-1. Overview
77
10-2. Specifications of communication division
78
10-3. Communication transmission setting
79
10-4. Wiring
80
10-4-1. For RS-232C
80
10-4-2. For RS-422A
80
10-4-3. For RS-485
80
10-5. Example of combination
81
10-5-1. Multizone temperature control
81
11. Appendix
82
11-1. Communication format list
82
Back cover
88
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Chino KP3000 Specifications
General
Brand
Chino
Model
KP3000
Category
Controller
Language
English
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