Yamato Scientific BB600 Low Constant Temperature Water Bath - Manual (Page 38)

35
Operation Method
RS485 Communication Function
6. Wire Connection
Shown below is an example of multi-drop wire connection.
PC
VS3 controller
CN3-3,4
RS232C/485 converter
KS-485
Cable 2
Cable 3
AC adapter
ID:01
VS3 controller
CN3-3,4
VS3 controller
CN3-3,4
ID:02
ID:31
100Ω
Terminating resistor
Cable 1
VS3 Built-in Device
Up to 31 stations
can be connected.
Note 1) Communication cable 1: One-meter-long RS-232C cable with a connector (for IBM nine-pin
appliance connection) to the personal computer and System Sacom's CBL16 connector (Dsub
25-pin male) to the KS-485
Note 2) Communication cables 2 and 3: Custom-made items.
Note 3) Terminating resistor: Custom-made item. If you prepare a terminating resistor yourself, connect a
fixed resistor of 100 Ω and 1/4 W or over to the last cable appliance terminal block.