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Memory requirements
The table below shows an overview of the memory requirements for the basic and special
function blocks:
Basic functions
AND
AND with edge evaluation
NAND (not AND)
NAND with edge evaluation
OR
NOR (not OR)
XOR (exclusive OR)
NOT (Negation)
Special functions
Timers
On-delay
Off-delay
On-/Off-delay
Retentive on-delay
Wiping relay (pulse output)
Edge triggered wiping relay
Asynchronous pulse generator
Random generator
Stairway lighting switch
Multiple function switch
Weekly timer
Yearly timer
Counters
Up/down counter
Hours counter
Threshold trigger
Analog
Analog threshold trigger
Analog differential trigger
Analog comparator
Analog value monitoring
Analog amplifier
Pulse Width Modulator (PWM)
Analog math
Analog math error detection
LOGO!
Manual, 10/2017, A5E01248535-AA
3.8 Memory space and circuit program size
Function
Programming LOGO!
Program
Rem
memory
memory*
12
-
12
-
12
-
12
-
12
-
12
-
8
-
4
-
8
3
12
3
12
3
12
3
8
3
16
4
12
3
12
-
12
3
16
3
20
-
12
-
28
5
28
9
16
-
16
-
16
-
24
-
20
-
12
-
24
-
20
-
12
1
99

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