Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Literature
Changes and modifications
Document revisions
This protocol supports data reading from Hydrolab DATASONDE 4a. The device must be in TTY communication mode.
The line parameters:
Other parameters are stated in the chapter Communication lines.
You can configure the following I/O tags:
Table 1
| Key word | Full name | Meaning | Unit | Default value |
|---|---|---|---|---|
| Wait Timeout | Delay between reading the line. | ms | 1000 ms | |
| Max Wait Retry | Maximum retries of reading the response until it is completed. | - | 35 |
String with protocol parameters is written according to this rule:
Key_word=value;Key_word=value; ...
Example:
WT=2000;MWR=40;
If a key word with valid value has not been found in the initial string, default value is used according to Table 1.
The received values can be AI (Analog input) or TIR (Time interval - input).
These data are separated by blank space and ended by CR and LF characters. The address defines the index of value ranging from 1. Value type TIR may be used for value with index 1 – it is a device time.
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