18
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
CPU module Abbreviation for the MELSEC-L series CPU module
Power supply module Abbreviation for the MELSEC-L series power supply module
END cover A cover to be attached to the right side of the rightmost MELSEC-L series module
Display unit A liquid crystal display to be attached to the CPU module
Battery
A battery to be installed in the CPU module and used for backing up data such as the standard RAM data
and latch device data in case of power failure. The Q6BAT and Q7BAT are available.
SD memory card
Secure Digital Memory Card, which is a flash memory device. The L1MEM-2GBSD and L1MEM-4GBSD are
available.
LCPU Another term for the MELSEC-L series CPU module
QnUCPU Another term for the MELSEC-Q series Universal model QCPU
Programming tool Generic term for GX Works2 and GX Developer
GX Works2
Product name of the software package for the MELSEC programmable controllers
GX Developer
Ethernet
A computer network standard developed by Xerox Corporation, Digital Equipment Corporation, and Intel
Corporation, which is standardized as IEEE 802.3
CC-Link
Abbreviation for Control & Communication Link. A field network system where data processing for control
and information can be simultaneously performed at high speed.
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