Lenze Drive PLC - Layout of the Descriptions

System bus (CAN) with Servo PLC & Drive PLC
Preface and general information
1-2
l
PLC-Systembus EN 1.1
1.1.2 Layout of the descriptions
All function/function block and system block descriptions contained in this Manual have the same
structure:
Function Function block (FB)/
System block (SB)
 Headline stating the function and the function identifier



 Declaration of the function:
• Data type of the return value
• Function identifier
• List of transfer parameters
-

 Short description of the most important properties


 Function chart including all
associated variables
• Transfer parameters
• Return value
FB/SB chart including all
associated variables
• Input variables
• Output variables


 Table giving information about the
transfer parameters:
• Identifier
• Data type
• Possible settings
• Info
Table giving information about the
input and output variables:
• Identifier
• Data type
• Type of variable
• Possible settings
• Info

 Table giving information about the
return value:
• Data type of the return value
• Possible return values and their
meaning:
-
 Additional information
(Notes, tips, a pplica tion examples, etc.)
Note: Return values for a function
If a function cannot be executed properly, a negative return value will be returned with an error
number.
• Each error number stands for an error cause which is explained in the column Meaning
• If different error numbers (-1, -2, ...) are possible, each error number is assigned to a certain
priority (1, 2, ...) in the column Priority
– The
is lower than this number the higher the priority of the associated error number.
– If several error causes occur at the same time, the error number with the highest priority
will be displayed.
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