User's Manual

Programming LOGO!
3.9 Memory space and circuit program size
LOGO!
Manual, 04/2011, A5E03556174-01
133
Function Program
memory
Rem
memory*
Yearly timer 12 -
Astronomical clock 20 -
Stopwatch 28 17
Counters
Up/down counter 32 5
Hours counter 36 9
Threshold trigger 16 -
Analog
Analog threshold trigger 20 -
Analog differential trigger 20 -
Analog comparator 24 -
Analog watchdog 24 -
Analog amplifier 12 -
Pulse Width Modulator (PWM) 30 -
Mathematic instruction 24 -
Mathematic instruction error detection 16 1
Analog multiplexer 20 -
Analog ramp 40 -
PI controller 44 2
Analog filter 16 -
Max/Min 20 6
Average value 32 16
Others
Latching relay 12 1
Pulse relay 12 1
Message texts 12 -
Softkey 12 2
Shift register 16 1
*: Bytes in the Rem memory area if retentivity is enabled.
Note
Since a UDF block is a preconfigured circuit program that you create from LOGO!Soft
Comfort V7.0 for your LOGO! 0BA7 device, the memory size (program memory and Rem
memory) of a UDF block depends upon the size of the function blocks contained in the UDF.
Utilization of memory areas
The system indicates that there is insufficient memory space by not allowing you to add a
block to your circuit program. LOGO! offers you only the blocks for which it can provide
sufficient memory space. If LOGO! memory space is insufficient to hold any additional
blocks, the system will deny access to the block list.
If memory space is fully occupied, optimize your circuit program or install another LOGO!.