Out of memory for build changes - Quantum

There are probably no easy quick fixes for running out of memory.

You could try:
1. Add two PMCIA memory cards.

140 CPU 651 50/60, 140 CPU 652 60 and 140 CPU 671 60 processors have 2 slots for a PCMCIA card:

A. An upper slot (no. 0) to receive memory extension cards (programs, symbols, constants and/or data storage).

B. A lower slot (no. 1) to receive a data storage memory extension card.​

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2. Upgrade to larger processor with more RAM memory (Modicon Quantum 140-CPU-651-60 OR 140-CPU-652-60), or

3. Split the program into two parts and add a second CPU, or

4. Make the code more efficient. Delete all unused addresses and symbols. Combine redundant functions into subroutines or user-defined called functions.

Thanks Lance, we are going to try the PCMCIA card.

Deb,

I don't know if the Quantum PLC automatically uses the PCMCIA memory, or if you instead have to modify your program to tell it how to use the new memory.

I do know that swapping out the plug-in processor module for a larger one would automatically give you more memory without the need to make any program changes.