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1. Introduction ...........................................- 1 -

2. For safe use of the product..................- 2 -

2-1 Prerequisites for use ..........................- 2 -

2-2. Symbol mark ......................................- 2 -

3. Overview ................................................- 3 -

3-1. RS-232C communication interface...- 3 -

3-2. RS-422A/485 communication interface - 3 -

4. Communication Protocol .....................- 4 -

4-1. MODBUS Protocol .............................- 4 -

4-2. PRIVATE Protocol ..............................- 4 -

5. Communication Specifications ...........- 5 -

5-1. MODBUS.............................................- 5 -

5-2. PRIVATE..............................................- 5 -

6. Setting the parameters for PC

communication .....................................- 6 -

6-1. Communication speed (COM BIT RATE)

............................................................- 7 -

6-2. Set device number (COM NUMBER) - 7 -

6-3. Set the communication function (COM

KIND) ..................................................- 7 -

6-4. Setting communication protocol (COM

PROTOCOL).......................................- 8 -

6-5. Setting communication character (COM

CHARACTER) ....................................- 8 -

7. Wiring...................................................- 10 -

7-1. Precautions while wiring.................- 10 -

7-2. Cable for communication................ - 11 -

7-3. RS-232C connection........................- 14 -

7-4. Wiring of RS-422A/485 ....................- 15 -

8. MODBUS protocol...............................- 16 -

8-1. Message transmission mode..........- 17 -

8-2. Data time interval.............................- 18 -

8-3. Message configuration....................- 18 -

8-4. Method of creating a message .......- 25 -

8-5. Function code ..................................- 26 -

8-6. Process during abnormality ...........- 30 -

8-7. Reference table ................................- 32 -

8-8. MODBUS protocol support reference

table..................................................- 53 -

9. PRIVATE protocol............................... - 59 -

9-1. Difference between RS―232C and

RS-422A/485.................................... - 59 -

9-2. Basic procedure of communication- 61 -

9-3. Communication format................... - 63 -

9-4. Positive response and negative

response.......................................... - 70 -

9-5. Communication time chart ............. - 72 -

10. Communication (Digital) transmission - 74 -

10-1. Overview ........................................ - 74 -

10-2. Specifications of communication

division............................................ - 75 -

10-3. Communication transmission

setting ............................................. - 76 -

10-4. Wiring............................................. - 77 -

10-5. Example of combination............... - 78 -

11. Appendix ...........................................- 79 -

11-1. Communication format list ........... - 79 -

Table of Contents

Brand	Chino
Model	KP3000
Category	Controller
Language	English

Chino KP3000 User Manual

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