Technical Specifications - Siemens Library SENTRON 3WL Function Manual

Technical specifications

The following meanings apply:
Block type name
The symbolic identifier in the library's icon table for the relevant FB. It must be unique to the
project.
Object name
Consists of the type of block (FB) and the number.
Block length in load/work memory
Memory requirement of program code, once per block type.
Length of instance data in load/work memory
Memory requirement of an instance DB.
Temporary memory
The local data memory needed when calling the block in an execution level. This is limited
depending on the CPU. If exceeded, you must check this in the CPU configuration and, if
necessary, redistribute to OBs of the size actually needed.
Library SENTRON 3WL / 3VL for SIMATIC PCS 7
Function Manual, 11/2008, A5E02316914A-01
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