Rockwell-automation 1771-DB BASIC MODULE Manual de usuario Pagina 268

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Chapter
Call Routines 69–127
13
13 -10
Use CALL 81 before storing a program in the EEPROM memory.
This routine:
determines the number of memory module programs
determines the number of bytes left in the memory module
determines the number of bytes in the RAM program
prints a message indicating if enough space is available in the memory
module for the RAM program
checks memory module checksum if program is found
prints a caution message is checksum fails
Important: CALL 81 cannot detect a defective memory module.
Input and Output Arguments
This routine has no input arguments and no output arguments.
Syntax
CALL
81
Example
>
CALL 81
Number of BASIC programs in (E)EPROM.......... 3
Available bytes to end of user (E)EPROM....... 7944
Available bytes to beginning of assembly pgm.. 3848
Length of BASIC program in RAM................ 76
Program will fit in (E)EPROM.
READY
>
CALL 81: User PROM Check
and Description
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