79
10
OPTION INTERFACE
79
OP
TION IN
TERFA
C
E
Chapter
10
10-1.
BCD interface
The BCD data output is an interface to extract the indicated value of the TM380 as BCD data. This
interface is convenient to process controls, totals, records, etc., by connecting the TM380 to a
computer, process controller, sequencer or the like.
The I/O and internal circuits are electrically insulated by photocoupler.
■
Connection
●
Output
The signal output circuit employs the open collector output.
10
OPTION INTERFACE
BCD data output connector
●
Internal transistor status
Output data
Negative
Positive
0
OFF
ON
1
ON
OFF
Vceo=30V(max)
●
Output pin level
Output data
Negative
Positive
0
H
L
1
L
H
Through logic switching (pin B14)
Vcc
+5V
COM
Ic =30mA (max)
Inside outside
Vext
TM380
Содержание TM380
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