ACR Electronics FPR-10 PROGRAMMER Manuale Scaricare il pdf (Pagina 39)

Parker Hannifin

System Configuration 39

Memory Allocations

Memory allocation on the ACR series controllers is completely

customizable —you can assign controller memory to features and

functions that need it most for your particular application. Using the

Configuration Wizard, you can quickly allocate memory for the

following: programs, PLCs, global variables, local variables, arrays,

and communication stream buffers.

It is important to dimension the memory correctly for your

application. The factory default memory allocations are limited to

programs, which receive 512K. The communication stream buffers

receive 256 bytes each.

Once you have allocated memory for a program, PLC, or global

variables, you cannot change it without first clearing the memory

space (CLEAR command). Otherwise, you receive a “Re-

dimensioned block” error.

NOTE: The controller stores system memory in battery-backed

SRAM, as well as hardware configuration data. If you reset

memory using the BRESET command, memory allocation

returns to factory settings.

Caution — When you send the BRESET command, you cannot

return the battery to normal operation without removing and

then restoring power. Stored programs are lost during the power

restore.

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ACR Electronics FPR-10 PROGRAMMER Manuale Pagina 39