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CJ/T 188 meters
CJ/T 188 Urban construction industry measurement protocol collection driver
Open the plugin
Enter “Development Configuration → Collection Configuration”, create a device and select “CJ/T 188” in “Collection Plugin”.
Supported channels and data types
| Channel type | Pre-configuration check |
|---|---|
| TCP Client | Confirm network reachability of the device IP, port, and gateway to the device. |
| TCP server | Confirm that the local listening address and port are available, and allow on-site devices to actively connect to the gateway. |
| Serial Port | Confirm that the serial port is not occupied by other programs and maintains the same baud rate, data bits, stop bits and parity bits as the device. |
Optional data types: Boolean, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Float, Double, String, Decimal
This list describes types allowed by the plugin editor. Address width, arrays, string length and read/write restrictions still follow this page; it does not mean that every address supports every type.
Plugin properties
Protocol parameters
| Setting | Description |
|---|---|
| Default address | Default: 00000000000001; fill in: text input. Set the default station number used when the station number is not specified separately in the variable address. |
| Instrument type | Default: 16; fill in: text input. Set the instrument type used for protocol communication. |
| Enable leading characters | Default: Yes; fill in: switch. Controls whether the “Enable Leader” feature is enabled. |
| Match response address | Default: Yes; fill in: switch. Controls whether the “match response address” feature is enabled. |
Connection configuration
| Setting | Description |
|---|---|
| DTU ID | Fill in: text input. Sets the identifier used to identify the current device connection through the DTU service. |
Address rules
- Data identification uses two or three bytes, for example 90-1F; available s = fourteen-digit address field; prefix specifies the instrument.
Device debug
Enter “Development Configuration → Collection Configuration”, select the current device then open “Protocol Debug” at the top of the workspace.
Functions
| Function | Purpose |
|---|---|
| Read and write | Read a confirmed point and write only to an approved test point. |
| Messages | View sent and received frames, protocol fields, and error details. |
Verify the configuration
Read the same data identifier with an instrument tool and compare the decoded BCD value and unit multiplier; the first byte alone is not the accumulated quantity.
Troubleshooting
- The address field has 14 digits, unlike DL/T 645. The data identifier and meter type must come from the same device protocol table.
- The serial port device does not respond: Confirm that the serial port is not occupied, and check the baud rate, data bits, stop bits and parity bits.
Related links
- Collection configuration: View channel, device and common variable configuration.
- Plugin Index: Find other collection or data-forward plugins.