Emerson FloBoss 103 - Serial Communications Card; Local Operator Interface Port to PC Comm Port Wiring; RS-232) Communications

FloBoss 103/104 Instruction Manual
Revised August-2017 Communications 5-3
Windows
®
operating system. A prefabricated operator interface cable is
available as an accessory. Refer to Figure 5-2.
The LOI port is intended for use with a PC running ROCLINK 800
software. This LOI port is compatible with EIA-232 (RS-232) levels.
Table 5-1 shows the signal routing of the Termination Board LOI port
connections to the PC Comm port. Note that the FB100’s EIA-232 (RS-
232) transmit signal connects to the PCs receive terminal and vice versa.
Table 5-1. Local Operator Interface Port to PC Comm Port Wiring
LOI Signal
LOI
Terminal
PC Signal
PC Comm
Port Pin
Transmit
TX
Receive
2
Receive
RX
Transmit
3
Ready to Send
RTS
Common
COM
Ground
5
Not Used
RP
Common
COM
A
White
B
Red
C
Black (connects to LOI terminal block)
Figure 5-2. PC Comm Port Wiring
5.4 Serial Communications Card
The EIA-232 communications card meets all EIA-232 specifications for
single-ended, RS-232 asynchronous data transmission over distances of
up to 15 m (50 ft). The EIA-232 (RS-232) communications card
provides transmit, receive, and modem control signals. The EIA-232
(RS-232) communications logic card activates Comm 2.
The EIA-232 (RS-232) communications card defaults are: 9600 baud
rate, 8 data bits, 1 stop bit, no parity, 10 millisecond Key On Delay, and
10 millisecond Key Off Delay. The maximum baud rate is 19,200 bps.
The EIA-232 (RS-232) communications card signals include RX, TX,
and RTS signal/control lines. Refer to Table 5-2.
T
C
i
s
e
n
d
c
o
n
n
e
c
t
s
t
o
L
O
I
t
e
r
m
i
n
a
l
b
l
o
c
C
A
B