Pixsys TD240 series, Руководство по эксплуатации

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8 Memory areas of the TD240
The TD240 makes memory areas available where it is possible to
read or to write program data. Access to the various areas is made
possible by instructions that access a single bit (b), a byte (B), a
word (W) or a double word (D).
SIGN AREA ACCESS
V Area of Variable V b, W, D
SM Area of Special Marker b, W, D
I Area of Digital Inputs b, W
AI Area of Analog Inputs b, W
Q Area of Digital Outputs b, W
M Area of Marker b, W
B Area of Bistable b
AQ Area of Analog Outputs b, W
T Area of Timer b, W
PT Area of Preset Timer b, W
C Area of Counters b, W
PV Area of Preset Counters b, W
EEP Area of EEPROM W
MMC Area of EEPROM data W
EXP Area of buffer TX/RX port EXP1 B
8.1 Area of Variable V
Area variable V is a memory area used by the program to retain
the data of the operations. It consists of 10000 locations of type
word (5000 double word). Access can occur through operations on
bits, words or double words. In the last case, the number of double
words always makes reference to the organization by words,
therefore in order to access consecutive double word variables it is
necessary to increment by 2.