2-7
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4
COM port (PLC/external device connection port) and power supply terminal
This is a communication port (RS232C or RS422) for connecting to a PLC, host PC, or microcomputer
board, and a power supply terminal for operation.
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5
Waterproof packing
This assures that the front panel is waterproof.
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6
Battery cover
When using a backup battery to be separately purchased, open this battery cover to install it. The clock,
PLC device hold data, alarm history and GT internal device hold data functions can be used with the
backup battery.
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7
Mounting location of connector for battery
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8
SD memory access lamp (Except GT03M-E)
The lamp turns on while accessing a SD memory card. Do not remove the SD memory card when the
lamp is lit.
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9
SD memory card slot (Except GT03M-E)
A SD memory card is inserted in this slot.
- Saving from GTWIN: Operate on the GTWIN screen using a SD memory card read/writer.
- Saving from GT main unit: Operate on the SD memory card setting screen of the system menu.
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