Specifications

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Additional Functions Section 6-5
6.5 Additional Functions
In addition to the random write and read access to PLC variables, a memory area
comprising 12 bytes is specified in the application description as cyclic poll area.
Only marginal conditions regarding this memory area that the PLC must be able to
access in bit-mode and the memory area must be contiguous. The start address of
this memory area must be specified in the mask definition and must be located on a
word boundary.
The variant ”cyclic data area byte-structured” is not available with this protocol.
Word-structured Memory Mapping
The data area comprises a maximum of 6 words or 12 bytes.
Cyclic data area on MW1
MW High-byte Low-byte
MW1 Write coordination byte Reserved
MW2 Message channel high-byte Message channel low-byte
MW3 LED 1 to 4 LED 5 to 8
MW4 LED 9 to 12 LED 13 to 16
MW5 LED 17 to 20 LED 21 to 24
MW6 LED 25 to 28 LED 29 to 32