RKC INSTRUMENT PG500 Manuals

RKC INSTRUMENT PG500 Manuals

Manuals and User Guides for RKC INSTRUMENT PG500. We have 1 RKC INSTRUMENT PG500 manual available for free PDF download: Communication Instruction Manual

RKC INSTRUMENT PG500 Communication Instruction Manual

RKC INSTRUMENT PG500 Communication Instruction Manual (70 pages)

Pressure Indicator

Brand: RKC INSTRUMENT | Category: Measuring Instruments | Size: 0 MB

Table of Contents

Table of Contents
5
1 Outline

7
2 Host Communication

8
3 Rkc Communication Protocol

24
- Polling
  24
  - Polling Procedures
    25
  - Polling Procedure Example (When the Host Computer Requests Data)
    28
    
    Normal Transmission
    28
    
    Error Transmission
    29
- Selecting
  30
  - Selecting Procedures
    30
  - Selecting Procedure Example (When the Host Computer Sends the Set Values)
    33
    
    Normal Transmission
    33
    
    Error Transmission
    33
4 Modbus Communication Protocol

34
- Message Format
  34
  - Slave Address
    34
  - Function Code
    34
  - Data
    34
  - Error Check
    34
- Function Code
  35
- Communication Mode
  35
- Slave Responses
  36
- Calculating CRC-16
  37
  - The Flow Chart of CRC-16
    38
  - Example of a CRC Calculation in the 'C' Language
    39
- Register Read and Write
  40
- Caution for Handling Communication Data
  44
- How to Use Modbus Data Mapping
  45
- Modbus Data Mapping Address
  46
  - Register Address for Data Mapping
    46
  - Register Address for Data Read/Writes
    47
5 Communication Data List

48
6 Troubleshooting

65
- RKC Communication
  65
- Modbus
  66
7 Ascii 7-Bit Code Table

67

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