ALYA Gina communication protocol
Supported device types and versions
This protocol enables to read the weighted values from scales produced by ALYA Poprad.
It can be used only when connecting one scale to a line, since it does not
contain an addressing of scale.
For communication with more scales, you may use ALYA SPOOL protocol.
Communication line configuration
- Category of communication line: Serial (RS-232 or RS-422), SerialOverUDP Device Redundant
- Parameters of serial line:
- Baud rate: 2400 Baud
- 8 data bits
- 1 stop bit
- Parity: Odd
Note: to get the communication started with a specific device, signals DTR and RTS had to be set to ON, therefore communication line SerialOverUDP Device Redundant with MOXA Nport-5110 converter set to UDP mode could not be used (UDP mode does not support setting DTR and RTS to a fixed value). Instead, the converter NPort-5110 had to be switched to Real COM mode and 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 optional parameters of protocol.
|Key word||Full name||Meaning||Unit||Default value|
|WT||Wait Timeout||Delay between the readings of response until it is completed.||ms||100 millisec.|
|WFT||Wait First Timeout||First waiting on response after sending the call.||ms||100 millisec.|
|MWR||Max Wait Retry||Number of response reading retry until it is completed.||-||6|
|RC||Retry Count||Number of call retries if some error in communication occurs.||-||2|
I/O tag configuration
Possible I/O tag types: AI
Addresses of I/O tags:
- NET - net weight of load
- TARA - tare
Note: Providing that a scale sent a message, which means that the platform is not stabilized yet, the values of NET and TARA has an invalid value.
Changes and modifications
- Ver. 1.0 – July 8, 2015 – creating document