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Appendix B Serial Port Settings
TPC-2012 User Manual B-2 ni.com
COM4 Connector Pinout and Settings
The TPC-2012 COM4 serial port is adjustable. You can set it to RS-232,
RS-422, or RS-485, and it has auto data flow control capability. In other
words, the TPC-2012 can automatically detect the data flow direction at
this port when two-wired RS-485 communication is activated.
The following figure and table show the COM4 pinout and settings.
COM4 Mode S1 and S2 Setting
RS232 Mode
RS485 Mode
RS422 Master Mode
RS422 Slave Mode
1
5
9
6