66 tina96e1-b (2016-12) VGC501_VGC502_VGC503.om
The data transmission is bi-directional, i.e. data and control commands can be
transmitted in either direction.
1 start bit, 8 data bits, no parity bit, 1 stop bit, no hardware handshake.
The following abbreviations and symbols are used:
Symbol Meaning
HOST Computer or terminal
[...] Optional elements
ASCII American Standard Code for Information Interchange
Dez Hex
<ETX> END OF TEXT (CTRL C)
Reset the interface
3 03
<CR> CARRIAGE RETURN
Go to beginning of line
13 0D
<LF> LINE FEED
Advance by one line
10 0A
<ENQ> ENQUIRY (CTRL E)
Request for data transmission
5 05
<ACK> ACKNOWLEDGE
Positive report signal
6 06
<NAK> NEGATIVE ACKNOWLEDGE
Negative report signal
21 15
"Transmit": Data transfer from HOST to VGC50x
"Receive": Data transfer from VGC50x to HOST
After each ASCII string, the HOST must wait for a report signal (<ACK><CR><LF>
or <NAK> <CR><LF>).
The input buffer of the HOST must have a capacity of at least 32 bytes.
5.1 Data Transmission
Data format
Definitions
Flow Control
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