COMMUNICATION PROTOCOL E8-V5 - SIC-Venim s.r.o.

1 - General information
Guide conventions:
The following typographical conventions are used throughout this manual.
Text in [] is a data, it is written with one byte
Text in [...(n byte)] is a data, it is written with n bytes
Text in is a group of data
A char in ‘’ is written as itself, for example, ‘1’ is the 49 ASCII code, ‘A’ is the 65 ASCII code.
Examples:
[0x41] is the 65 ASCII code (in decimal base), which is the letter A
[0x42] is the ASCII code 42 in hexadecimal base, which is the letter B
[ETX] is ASCII code ETX (0x02 in hexadecimal base)
2 communications protocols are possible :
- TEXT protocol : all data are printable char
easy to read
it is not possible to transfer every kind of data
the string to be transferred is longer
ideal for automatism who have trouble sending binary code.
- BINARY Protocol : data are compact and written using the full ASCII table
--> no limits for the data
--> the string to be transferred is compact (fast communication)
--> data are coded, it is not easily readable
- the string to be transferred cannot be longer than 25 000 bytes
Peticular case : the string which run the marking file:
As soon as the control receive the string, it send the [ACK] code then start the marking file
At the last dot marked, the control send [EOT]
At the end of the cycle, and at home position, the control send [ENQ]
On error, the control send [NAK][ERROR-CODE(3)]
When an error occurs, you must acknowledge the message by sending the RESET ERREUR string
Remark: For historical compatibility, you can use the communication protocol of 4A version (see
the end of document)
Le texte écrit avec la police
COURIER ne doit pas être traduit
Text witten with the COURIER font
must not be translated
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