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MELSEC-Q
7 MEMORY CARD AND BATTERY
7.4 The Names of The Parts of The Memory Card
The names of the parts of the memory card are described below.
Write-protected ON
2)
1)
4)
3)
"LOCK"
direction
"RELEASE"
direction
No. Name Descriptions
1) Connector area Connector area connected to the CPU module
2) Battery holder
Used to set the lithium battery for data backup of the SRAM memory
(SRAM card only)
3)
Battery holder fixing
switch
Switch for fixing the battery holder to the memory card main module
Locked at LOCK position (write protect switch side)
LOCK: Locked, RELEASE: Unlocked
(SRAM card only)
4) Write protect switch
Used to set write inhibit in the memory. At the time of shipping, it is
set at OFF.
(SRAM card and Flash card only)
ON: Data write inhibited
OFF: Data write enabled
: The battery holder fixing switch is returned automatically from RELEASE to LOCK
when the battery holder is disconnected.