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Appendix B
Serial Port Settings
PPC-2115 User Manual
B-2
ni.com
COM4 Connector Pinout and Settings
The PPC-2115 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 PPC-2115 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