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The data format of the variable object is not given by the MININET line. It has to be defined by the user. The total length of the process variable cannot exceed the maximum length of a MININET frame (240 bytes).
A counter (register) or flag is defined for the controller in the connection description.
Connection description syntax:
/RO=<Connection>
or
<Connection>
Memory type |
Connection |
Min. offset |
Max. offset |
Example |
Counter |
C<Offset> or R<Offset> |
0000 |
7095 |
"C1000" |
Flag *) |
M<Offset> or F<Offset> |
000 |
799 |
"M137" |
*) |
Can only be used in SPOIO mode. |
If the connection is defined as the /RO parameter, the connection description must always be specified in quotation marks ("...") in the object description.
Example of object description:
CD="/RO=C926" VT=i16
CD=C926 VT=i16
The memory range beginning with Counter 926 is read and written as a 2-byte integer value.