APG DCR-1006A user manual - Manual (Page 11)

Rev. A1, 2/14 DCR-1006A Ultrasonic Controller
11
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RST Module Wiring: connect the RS-485
NET A(-) and B(+) terminals to the A and B
terminals of the RST module.
Vs
A (-) B(+)
A1 (-) B1(+)
OUT
RST Module
RST-5002 or RST-6001 Communication Module Wiring
The DCR-1006A can be connected to the RST-6001 RS-485-to-USB module for
interfacing with the APG Modbus software, or to the RST-5002 internet commu-
nications module to provides remote access to the DCR’s readings and settings.
The “RS-485 NET A and B terminals are the only connection required for either
RST module.
Wiring the Switched Input for High/Low Level Backup
The DCR’s Switched Input can be connected to simple switching device, such as
a float switch, to provide a high/low level backup and prevent dry pumping or
overflow conditions in the event of an ultrasonic sensor failure or malfunction.
IN
GN
D
N.
O
.
C
OM N.
C.
N.
O
.
C
OM N.
C.
N.C.
Switch
Relay Controlling
Pump/Valve
Switched
Input
Relay Controlled
by Switch Input
IN
GN
D
N.
O
.
C
OM N.
C.
N.
O
.
C
OM N.
C.
N.O.
Switch
Relay Controlling
Pump/Valve
Switched
Input
Relay Controlled
by Switch Input
Normally Open
Switched Input
Normally Closed
Switched Input