Sigma 980 Operating And Maintenance Manual page 47

Figure 19 RS232 Wiring Connections
No Connection
POWER
OFF
1. Disconnect wires and secure appropriately.
2. RS-232 Quick Disconnect (shown disconnected)
2. Disconnect the RS232 permanent conduit connection.
3. Connect RS232 side connector Quick-connect to the hub on the side
panel of the instrument.
4. Wire the RS232 side-connector. Refer to
Table 10 Side Connector RS232 Terminal Block Connections (TB11)
Pin
1
2
3
4
5
6
This serial interface can be used for the SCADA-Modbus interface.
See Appendix E on page 133.
This port may be configured to communicate at 1200, 2400, 4800, 9600, or
19,200 baud.
Cable Required
RS232 Flow Meter to PC Cable Assembly, 10 ft (3.0 m) long, 6-pin connector
on one end, 9-pin connector on the other end (Cat. No. 1727).
TB3 TB3
SHIELD SHIELD
NO NO
REF REF
COM RELAY 4 COM RELAY 4
pH pH
NC NC
RTD RTD
NO NO
ON ON
–5V –5V
F1 F1 F2 F2
COM RELAY 3 COM RELAY 3
COMMON COMMON
NC NC
+5V +5V
NO NO
T, 1.0A 250V T, 1.0A 250V
485A 485A
COM RELAY 2 COM RELAY 2
485B 485B
NC NC
NO NO 485+ 485+
COM RELAY 1 COM RELAY 1 485GND 485GND
HOT/ 1 HOT/ 1 HOT/ 1 HOT/ 1
NC NC SHIELD SHIELD
J12 J12
J13 J13 J13 J13
NEU/ 2 NEU/ 2 NEU/ 2 NEU/ 2
TB8 TB8 TB8 TB8
3. Conduit Hub
4. RS-232 Input/Output
Table 10
Signal Description
+12 V
TXD
DTR
RXD
DSR
Common
TB11 TB11 AV AV AV
pH pH TB4 TB4
MODEM MODEM TB2 TB2 RAIN RAIN TB 9 ANALOG TB 9 ANALOG TB10 TB10 4-20 mA 4-20 mA
1 1
1 1
RING RING CH 4 CH 4 CH A+ CH A+
RAIN+ RAIN+
TIP TIP
RAIN– RAIN– COMMON COMMON CH A– CH A–
1 1
RING RING
SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD
TIP TIP
CH 1 CH 1 CH 5 CH 5 CH B+ CH B+
TB5 TB5
ULTRASONIC ULTRASONIC
COMMON COMMON COMMON COMMON CH B– CH B–
SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD
TB6 TB6
1 1
CH 2 CH 2 CH 6 CH 6 START START
RTD RTD
RTD RTD RTD – RTD –
COMMON COMMON COMMON COMMON PULSE PULSE
SHIELD SHIELD
SHIELD SHIELD SHIELD SHIELD BOTTLE BOTTLE
1 1
CH 3 CH 3 CH 7 CH 7 EVENT EVENT
TOTAL + TOTAL +
COMMON COMMON COMMON COMMON COMMON COMMON
TOTAL – TOTAL –
SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD
SHIELD SHIELD
RS485 RS485 ANALOG ANALOG ANALOG ANALOG SAMPLER SAMPLER
TB7 TB7
TOTALIZER TOTALIZER
RS232C RS232C RS232C
Section 2
and Figure 19.
Wire Color
orange
green
red
black
yellow
brown
TB11
SHEILD SHEILD SHEILD
RCV– RCV– RCV–
RCV+ RCV+ RCV+
XMIT– XMIT– XMIT–
XMIT+ XMIT+ XMIT+
1
COMMON COMMON COMMON
+12V +12V +12V
DEPTH– DEPTH– DEPTH–
DEPTH+ DEPTH+ DEPTH+
SHIELD SHIELD SHIELD
COMMON COMMON COMMON
DSR DSR DSR
RXD RXD RXD
DTR DTR DTR
TXD TXD TXD
+12V +12V +12V
2
3
4
Page 45
Wiring the RS232