ALYA Gina communication protocol
Supported device types and versions
This protocol is used to read the weighted values from scales produced by ALYA Poprad. It can be used only when a single scale is connected to a line since it does not contain addressing of the scale.
For communication with more scales, the ALYA SPOOL protocol may be used.
Communication line configuration
- Category of communication line: Serial (RS-232 or RS-422), SerialOverUDP Device Redundant
- Parameters of the serial line:
- Baud rate: 2400 Baud
- 8 data bits
- 1 stop bit
- Parity: Odd
Note: to get the communication started with a specific device, the DTR and RTS signals had to be set to ON, therefore the SerialOverUDP Device Redundant communication line together with a MOXA NPort-5110 serial server set to the UDP mode could not be used (the UDP mode does not support the setting of DTR and RTS signals to a fixed value). Instead, the MOXA NPort-5110 serial server had to be switched to a Real COM mode and a Serial line had to be configured.
Communication station configuration
- Communication protocol: Alya Gina
- The station address is unimportant.
Station protocol parameters
Communication station - configuration dialog box - "Protocol parameters" tab.
They influence some of the optional parameters of the protocol.
|Keyword||Full name||Meaning||Unit||Default value|
|Wait Timeout||Delay between the readings of response until it is completed.||ms||100 millisec.|
|Wait First Timeout||First waiting on a response after sending the request.||ms||100 millisec.|
|Max Wait Retry||The number of response reading retry until it is completed.||-||6|
|Retry Count||The number of request retries if a communication error occurs.||-||2|
I/O tag configuration
Possible I/O tag types: AI
Addresses of I/O tags:
- NET - net weight of the load
- TARA - tare - the weight of the packaging
Note: If a scale sends a message, which means that the platform is not stabilized yet, the NET and TARA I/O tags will have invalid values.
Changes and modifications
- Ver. 1.0 – July 8, 2015 – creating a document