Compal U-BPC, Руководство пользователя

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2.8.2 Digital Output
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Figure: Digital Output Terminal Block
Connection
DO Connection Design TTL (Transistor-to-Transistor Logic) compatible logic levels
Or Transistor (open collector)
Or relay (check w/ EE)
Voltage Rigger (high) Logic level 1: (check w/ EE)
Normal (low) Logic level 0: (check w/ EE)
Current
2.9 Micro SD Card Reader
The built-in memory card reader enables your U-BPC to read/write data to and from a micro SD card.
You could store important field site or control data in it.
Inserting a Micro SD Card
1. Insert the micro SD card into the card slot in the rear side of your U-BPC.
2. Push it all the way until you heard a click, make sure it fits completely.
Removing a Micro SD Card
1. To prevent data form loss, make sure there’s no data writing into the micro SD card before you
eject it.
2. Push the micro SD card inward a little until you hear a click, and then release it.
3. The micro SD card pops out; gently slide the card out of the card reader.
NOTICE!
A micro SD card fits only in a direction, and slides smoothly into the slot if inserted
correctly. Do not force the card into the slot.