Ulvac UTM2300 Series, Instruction Manual

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SECTION 6 OPERATION
54
6
6.8
Communication Specifications
6.8.1 RS-232C
6.8.1.1 Transfer Specifications
6.8.1.2 Connector Specifications
6.8.1.3 CABLE
(1) Cable connection
Use the connection cable as shown in Fig. 6-5 to connect the turbo molecular pump and
computer. (Number on figure is pin number of connector.)
(2) Cables used
For connection with this connector, the communication cable with shield is necessary.
The shield of the cable should be connected to case.
(3) Cable length
Connection cables can be extended up to 15 meters, but may be subjects to errors
depending on actual operational environment.
Interface RS-232C
Synchronous system Asynchronous
Transmission rate 9600 bps (fixed)
Character
configuration
Start bit : 1
Data bits : 8
Parity : None
Stop bit : 1
Flow control None
Connector SERIAL connector (shared with RS-485)
Connector type D-sub 9 pin male, Screw lock size : M2.6
Pin assignment
2 : RD (Receive data)
3 : SD (Transmit data)
5 : SG (Signal ground)
* Don’t connect other pins except the above-mentioned.