IDEC SmartRelay Manual
109
Programming IDEC SmartRelay
3.9 Memory space and circuit program size
Calculating memory reuirements
hen calculating the memory reuirements of a circuit, you must always take into account all
individual areas of memory.
E
xample:
The sample circuit program contains:
: Configured with retentivity.
This means that this circuit program fits in IDEC SmartRelay.
Block no. Function Memory area
Bytes Blocks REM
B1 OR 12 1 -
B2 AND 12 1 -
B3 Twelve-month time switch 12 1 -
B4 On-delay 12 1 3
B5 Stairwell light switch 16 1 3
B6 AND 12 1 -
Resources used by the circuit program 76 6 6
Memory space limits in IDEC SmartRelay 8500 400 250
S
till available in IDEC SmartRelay 8424 394 244
00
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,
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4
4
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5(0
5(0
3DU
3DU
3DU
7ZHOYH0RQWK
7LPH6ZLWFK
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$1'
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25
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