SICK HIPERFACE DSL, Technical Information, Page: 130 / 172

A user file must have been previously created before it can be loaded, written to or read
from.
Before a file can be changed or deleted, the file must be loaded (see chapter 8.10.1 ).
To create a file , the name must be set in the long message buffer. Unallocated charac‐
ters of the file name are set to "00h". If there is a user file with the name given already
present, the procedure to create the file is canceled with an error message. The name
may only consist of printable ASCII characters (20h - 7Eh). The name must be at least
one character long.
Table 164: Create file definition
Byte Value Description
7 to 0 Variable Name of the file to be created
The offset value is also used to create a file.
Table 165: Offset value for creating a file
Bits Value Definition
14 – 10 Reserved for later use
9 – 8 11b Create file
7 – 4 Write access rights
0 Public
1 Operator
2 Maintenance
3 Authorized client
4 Service
5 – 14 Reserved for later use
15 No write operation permitted
3 – 0 Read access rights
0 Public
1 Operator
2 Maintenance
3 Authorized client
4 Service
5 – 14 Reserved for later use
15 No read operation permitted
To change a file , only the offset value is used.
Table 166: Offset value for changing a file
Bits Value Definition
14 – 10 Reserved for later use
9 – 8 01b Change file
7 – 4 Write access rights
0 Public
1 Operator
2 Maintenance
3 Authorized client
4 Service
5 – 14 Reserved for later use
15 No write operation permitted
8
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130 T E C H N I C A L I N F O R M A T I O N | HIPERFACE DSL
®
8017595/ZTW6/2018-01-15 | SICK
Subject to change without notice