Precautions For Memory And Battery Replacement - Mitsubishi Electric MELSEC Q Series Handbook

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MEMORY AND BATTERY REPLACEMENT

6.2 Precautions for Memory and Battery Replacement

(1) Precaution for memory replacement
When multiple blocks of extension file registers are used on the Q series, if the memory capacity of
standard RAM is insufficient, the extended SRAM cassette is required for the High-speed Universal
Model QCPU, and the SRAM card for the Q series is required for other Universal Model QCPUs.
(2) Precaution for battery replacement
The battery for the A series (A6BAT*) should be replaced with the one for Q series (Q6BAT, Q7BAT).
(The Q6BAT is included in the Q series CPU as standard equipment.)
Refer to the users manual of each CPU module for battery life, since it varies depending on the type of
CPU module and memory cassette.
* The A6BAT is not a model to be discontinued.
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