ALYA VT200 communication protocol
Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Literature
Changes and modifications
Document revisions
Kotva | ||||
---|---|---|---|---|
|
...
- Category of communication line: TCP/IP-UDP
- Parameters of UDP line:
- Host: IP address of scale configured in the parameters of scale
- Port: UDP port of scale where requests are send. Default value (according to the documentation) is 3396.
Kotva | ||||
---|---|---|---|---|
|
...
- Communication protocol: ALYA VT200.
- Address of station is irrelevant and need not be defined. Only one station may be configured on one line.
...
I/O tag address | I/O tag type | Meaning | ||||||
---|---|---|---|---|---|---|---|---|
NETTO | Ai | Net weight in kg. Note: If a scale reports the unsteady status (see I/O tag STEADY), I/O tag will be Invalid. | ||||||
TARA | Ai | Tare in kg. Note: If a scale reports the unsteady status (see I/O tag STEADY), I/O tag will be Invalid. | ||||||
| Di | Information whether a scale is steady (True) or not yet (False). | ||||||
ZERO | Di | Information whether a scale shows null weight (True) or not (False). | ||||||
RANGE | Ci | Scale range: 0, 1 or 2 according to the standard EN 45510 | ||||||
KEYCODE | TxtI | Keystroke(s) read from keyboard. Note: After reading keystroke(s) from a keyboard, they are deleted from a keyboard buffer so that during next reading from scale, this I/O tag is set to Invalid (unless parameter ND is set). Therefore, it is necessary to handle keystrokes within ESL script. | ||||||
BARCODE | TxtI | EAN-code read from a bar-code reader. Note: After reading bar-code from a bar-code reader, it is deleted from the reader so that during next reading from scale, this I/O tag is set to Invalid (unless parameter ND is set). Therefore, it is necessary to handle bar-codes within ESL script. | ||||||
DISPLAY | TxtO | I/O tag that is used for communication with monochromatic display on scale. The string must consist of binary data in the format which is stated in the manual from a producer. Message format is <XH><XL><YH><YL><WH><WL><HH><HL><data>, where:
|
...