Ulvac UTM2300 Series, Instruction Manual

Page: 69 / 102

6.8 Communication Specifications
55
6
a. Cable wiring connections for 9-pin connector cables.
Fig.6-5 Example of RS-232C Cable Wiring Connections
6.8.2 RS-485
6.8.2.1 Transfer Specifications
(*1) There may be restrictions depending on cable length or cable type.
Perform appropriate checks in the actual operating environment.
6.8.2.2 Connector Specifications
Interface RS-485 (2-wire, half duplex)
Synchronous system Asynchronous
Transmission rate 9600 bps (fixed)
Character
configuration
Start bit : 1
Data bits : 8
Parity : None
Stop bit : 1
Flow control None
Number of power supply
max 1 (multi-drop function is not supported)
Multi-drop function OFF : 1
ON : Max 32 (*1)
Connector SERIAL connector (shared with RS-232C)
Connector type D-sub 9 pin male, Screw lock size : M2.6
Pin assignment
4 : RXA (Received data
＋
)
7 : RXB (Received data
－
)
* Don’ t connect other pins except the above-mentioned.