ModbusServerStringRecord
A Modbus Server String Record allows writing Modbus file records (server side support for Modbus function codes 20 and 21).
The input and output is a string converted to/from a byte array. Writing occurs when the linkable write action is fired.
Figure 25. ModbusServerStringRecord properties
This component allows you to locally set the value of a string file record, and also accepts read and write messages for the specified file record. It also converts the data to ASCII characters to display as a string.
To use, copy from the modbusSlave or modbusTcpSlave palette and place anywhere under the Modbus server device
NOTE: it is not a proxy point—if you put under the device’s Points container it will not be visible in any Modbus Server Point Manager view.
| Property | Value | Description |
|---|---|---|
| Data | read-only | Displays the value of the converted string as ASCII characters. |
| File Number | number (defaults to 0) | Identifies the source file for the data as a value from 0 to 65535. |
| Starting Record Number | number (defaults to 0) | Displays the record at which the converted string begins as a number fro 0 to 9999. |
| Record Length | number (defaults to 0) | Displays the length of the converted record from 0 to 65535. |
| Write On Input Change | true or false |
Configures when to write a value to the register.
|
| Padding | drop-down list (defaults to Pad with spaces) | Indicates the type of characters used to fill out the record. |
| Input | text box | Displays the data coming in as a string from a byte array. |
| Output | text box | Displays the data going out as a string converted to a byte array. |