Siemens LOGO! - Calculating Memory Requirements; The Sample Circuit Program Contains

109
LOGO! Manual
A5E00380835-01
Calculating memory requirements
When calculating the memory requirements of a circuit, you
must always take all individual areas of memory into ac-
count.
Example:
Q1x
I2
B1
B2
B3
x
B4
–20
No 1
No 2
No 3
I1
Par
B5
B6
Par
Q2
I3
I4
x
REM
Bytes
–12
REM
Bytes
The sample circuit program contains:
Block
o
Function
Memory area
no.
Bytes Blocks REM
B1 OR 12 1 –
B2 AND 12 1 –
B3 Weekly timer 20 1 –
B4 On-delay* 8 1 3
B5 Stairway lighting switch 12 1 0
B6 AND 12 1 –
Resources used by the circuit pro-
gram
76 6 3
Memory space limits in LOGO! 2000 130 60
Still available in LOGO! 1924 124 57
*: Configured with retentivity.
This means that this circuit program fits into LOGO!.
Pro
g
rammin
g
LOGO!