Specifications

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Additional Functions Section 15-5
15.4.1 Data Types
Direct user access is possible to the following data types:
E input bit
EW input word
A output bit
AW output word
M flag bit
MW flag word
MD flag double word
KW register word
KD register double word
The addresses to the left and right of the comma are programmed in the program-
ming software in separate columns.
When reading from the PLC, variables that are of the same type and are located in
an area of up to 50 bytes are read as a block.
NOTE:
If the terminal accesses the local binary inputs E62.00 - E63.07 and local analog
inputs EW06.00 - EW06.03, the PLC provides correct data only if the PLC program
accesses an input of the corresponding group at least once.
15.5 Additional Functions
In addition to the random read and write access to PLC variables, a 12 byte memory
area is specified in the application description as a poll area.
The only marginal conditions regarding this memory area are that the PLC must be
able to access in bit-mode and the terminal in word-mode and the memory area
must be contiguous.
This poll area must point to the flag word area (MW).
Example: The cyclic poll area is set to MW000,10 in the programming system.
Word address MW High-byte Low-byte
Word address +0 MW000,10 Write coordination byte Reserved
Word address +1 MW000,11 Message channel high-byte Message channel
low-byte
Word address +2 MW000,12 Function key LEDs 1 to 4 LEDs 5 to 8
Word address +3 MW000,13 Function key LEDs 9 to 12 LEDs 13 to 16
Word address +4 MW000,14 Function key LEDs 17 to 20 LEDs 21 to 24
Word address +5 MW000,15 Function key LEDs 25 to 28 LEDs 29 to 32