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Battery Installation Procedure
Battery (Optional)
D2-BAT-1
Coin type, 3.0V Lithium battery, 560mA, battery number CR2354
Note: Although not needed for program backup, an uninstalled battery is included with the
P1-540. Install this battery if you want the CPU to retain the Time and Date along with any
Tagname values that you have set up as retentive.
Step One:
Open battery compartment
located on the top of the CPU.
Step Two:
Insert battery and
close compartment.
Squeeze tabs and
pull battery holder up
to remove battery.
P1-540
+-
P1-540
Take care to insert
battery behind tab.
P1-540
microSD Specifications
Port Name microSD
Description
Standard microSD socket for data logging
Maximum Card Capacity
32GB
Transfer Rate
(ADATA microSDHC
Class 4 memory card)
Mbps Minimum Typical Maximum
Read 14.3 14.4 14.6
Write 4.8 4.9 5.1
Port Status LED
Green LED is illuminated when card is inserted/detected
Pin SD
1 DAT2
2 CD/DAT3
3 CMD
4 VDD
5 CLK
6 VSS
7 DAT0
8 DAT1
NOTE: Card not included with unit.
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