Connecting The Optional Digital Output - Hach sc100 1720E Instrument Manual

Figure 21 Hard-wiring the Sensor
J1 J1
S1 S1
J2 J2
U5 U5
J4 J4
NETWORK NETWORK
INTERFACE INTERFACE
CARD CARD

3.5 Connecting the Optional Digital Output

9. Pass the cable through conduit and a conduit hub or a strain relief fitting and
an available access hole in the controller enclosure. Tighten the fitting.
10. Close and secure the cover.
J3 J3
J5 J5 J5 J5
U9 U9
J6 J6
At this time, the manufacturer supports ModBUS RS485 and ModBUS RS232
communication protocols. The optional digital output card is installed in the
location indicated in
connection to the optional network card. The terminal connection is based on the
selected network card. Refer to the instructions supplied with the network card for
more details.
Table 7 Network Connections at Terminal Block J1
Terminal Number
1
2
3
4
5
6
7
1 1 + + + + DATA DATA DATA DATA
2 2 – DATA – DATA
3 3 SERVICE REQUEST SERVICE REQUEST
4 4 + + + + V V V V
5 5 GND GND
6 6
1 1 + + + + OUT 2 OUT 2 OUT 2 OUT 2
2 2 – OUT 2 – OUT 2
3 3 SHIELD/CHASSIS GND SHIELD/CHASSIS GND
4 4 + + + + OUT 1 OUT 1 OUT 1 OUT 1
PCB PCB PCB PCB
5 5 – OUT 1 – OUT 1
CONNECTOR CONNECTOR CONNECTOR CONNECTOR
NC NC NC NC NC NC
COM COM NO NO COM COM NO NO COM COM NO NO
RELAY 1 RELAY 1 RELAY 2 RELAY 2 RELAY 3 RELAY 3
FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING
INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST
BE RATED TO BE RATED TO BE RATED TO BE RATED TO
80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM
Figure 22 on page 22. Terminal block J1 provides user
ModBUS RS485
In +
In –
Out +
Out –
Common
No connection
Shield
Installation
ModBUS RS232
—
—
—
—
Common
No connection
Shield
21