Emerson QuickPanel+ IC755C S06RD Series - Page 32

Quick Start Guide Section 4
GFK-2893P Sep 2019
Mounting & Installation 31
4.6.4.3.2 Serial Port COM2
Interface: RS-232C/485 (default is
RS-485 Half-duplex)
Pin #
RS-232
RS-485
Signal
Name
Signal Name
(Full-
duplex
†
)
Signal Name
(Half-
duplex
†
)
1
TXD
TXD+
DATA+
‡
2
RXD
TXD-
DATA-
‡
3
RTS
RXD+
DATA+
‡
4
CTS
RXD-
DATA-
‡
5
SGND
SG
SG
†
Full-duplex RS–485 is backwards compatible to
RS–422 mode.
‡
Pins 1-3 and 2-4 are connected internally.
Figure 4.5: C755CxSxxCDx Serial Port COM2 Pin-out