Specifications

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Additional Functions Section 10-5
11.4.1 Data Types
Direct accessing of the following data types is possible:
E input bit
EB input byte
EW input word
ED input double word
A output
AB output byte
AW output word
AD output double word
M flag
MB flag byte
MW flag word
MD flag double word
MG flag floating point
The size of each area is governed by the configuration of the PLC.
T timer-status
TI timer actual value
TS timer setpoint value
Z counter
ZI counter actual value
ZS counter setpoint value
11.5 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 poll area.
Only marginal conditions regarding this memory area is that the PLC must be able
to access in bit-mode and the terminal in word-mode and that the memory area
must be contiguous. The location of this memory area can be specified in the appli-
cation description.
The data area has a maximum size of 6 words or 12 bytes.
It can optionally be located in a byte or word-structured area.
Byte-structured Memory Mapping
The data area comprises a maximum of 11 bytes
Example: The cyclic poll area is set to MB21 in the programming system.