Edwards SCU-800

SCU-800 Control Unit for Turbomolecular Pump
MT-49E-101-G
Page 62
5
SERIAL COMMUNICATION
PROTOCOL
5.2.3 Communication parameter setting
The factory setting of the communication parameter is shown in Table 17. When changing the
communication parameter, refer to Section 3.11, "Parameter set mode".
To use the operational commands of the SCU-800 (START, STOP, RESET), set the
MANUAL/REMOTE changeover switch on the SCU-800 to "ON", and set a port to use the Remote
mode, refer to Figure 9.
When the MANUAL/REMOTE changeover switch is "OFF" or a port which is not set as Remote mode,
commands other than the operation commands can be used.
Communication
parameter
SCU-800
PC setting example
Remote mode
I/O Remote
I/O Remote, COM1, COM2, STP-Link
Baud rate
9,600 bps
110 to 19,200 bps
Bit length
8 bit
7, 8 bit
Stop bit
1 bit
1, 2 bit
Parity
None
None, Even, Odd
Driver type
RS232
RS232, RS485(Single), RS485(Multi)
RS485ID
*1
1
1 to 127
*1
This value is used with "RS485 (Multi)".
Table 17 - Communication parameters