6-2 Connecting to External Devices via RS-232C Interface
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参 考
You can set a tare range or adjust the zero-point from an external device by connecting a
contact or a transistor switch between the pin for externally setting a tare range (Pin 9) to
the pin for signal ground (Pin 5). In this case, allow at least 400 ms for connection (ON)
time (Maximum voltage when the balance is turned OFF: 15 V, sink current when it is
turned ON: 20 mA.)
Sample connection with a PC
Use the following examples as a guide to connect the balance to external devices using the cable.
- Sample connection with a PC/AT compatible machine
TXD
RXD
GND
DCD
RTS
CTS
DSR
DTR
RXD
TXD
GND
3
2
5
1
7
8
6
4
2
3
5
パソコン側
（D-SUB9P）
はかり側
（D-SUB9P）
TXD
RXD
GND
DCD
RTS
CTS
DSR
DTR
RXD
TXD
GND
2
3
7
8
4
5
6
20
2
3
5
パソコン側
（D-SUB25P）
はかり側
（D-SUB9P）
PC
Balance
PC
Balance
Reference
