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RKC INSTRUMENT AG500 Digital Indicator Manuals
Manuals and User Guides for RKC INSTRUMENT AG500 Digital Indicator. We have
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RKC INSTRUMENT AG500 Digital Indicator manual available for free PDF download: Communication Instruction Manual
RKC INSTRUMENT AG500 Communication Instruction Manual (70 pages)
Digital Indicator
Brand:
RKC INSTRUMENT
| Category:
Measuring Instruments
| Size: 0 MB
Table of Contents
Table of Contents
5
1 Outline
7
2 Host Communication
8
Host Communication Specifications
8
RKC Communication
8
Modbus
9
Wiring for Host Communication
10
Connection to the RS-485 Port of AG500
10
Communication Terminal Number and Signal Details (RS-485)
10
Connection to the RS-485 Port of the Host Computer (Master)
10
Connection to the RS-232C Port of the Host Computer (Master)
11
Connection to the USB of the Host Computer (Master)
12
Connection to the RS-422A Port of AG500
13
Communication Terminal Number and Signal Details (RS-422A)
13
Connection to the RS-422A Port of the Host Computer (Master)
13
Connection to the RS-232C Port of the Host Computer (Master)
14
Connection to the USB of the Host Computer (Master)
15
Setting
16
Display Sequence
16
Description of each Parameter
17
Function Block 60 (F60.) [Engineering Mode]
17
Setup Setting Mode
17
Setting Procedure Example
18
Communication Requirements
22
Processing Times During Data Send/Receive
22
RS-485 (2-Wire System) Send/Receive Timing (RKC Communication)
23
Fail-Safe
23
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
Read Holding Registers [03H]
40
Preset Single Register [06H]
41
Diagnostics (Loopback Test) [08H]
42
Preset Multiple Registers [10H]
43
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
Reference to Communication Data List
48
Communication Data List (RKC Communication/Modbus)
50
Range Code Table
60
The Communication Data Which will be Initialized or Changed, if the Communication Data Are Changed
61
The Communication Data Which will be Initialized if the Input Type Is Changed
61
The Communication Data Which will be Initialized if the Display Unit Is Changed
62
The Communication Data Which will be Initialized if the Alarm Type Is Changed
63
The Communication Data Which will be Automatically Converted if the Input Decimal Point Position Is Changed
65
The Communication Data Which will be Automatically Converted if the Input Scale High/Low Are Changed
65
Troubleshooting
66
RKC Communication
66
Modbus
67
Ascii 7-Bit Code Table
68
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