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1.0 Introduction
The SC-2124 is a microprocessor-based universal scanner for continuous monitoring of up
to 24 channels measuring temperature from thermocouples, pressure or any other analog
signal that can be represented by either 0-5V or 4-20mA . Each scanner channel may be
configured for the following input types:
•
J, K, E, or T thermocouple inputs
•
4-20 mA inputs (8 on-board resistors available via DIP switch)
•
0-5 V Inputs
The SC-2124 provides
ALARM
and
SHUTDOWN
capabilities via two dedicated on-board 5
Amp relays (plus 2 additional general-purpose relays) and automatically TRIPs should any
user-programmable threshold be exceeded.
The SC-2124 utilizes all DB-Style Connectors on the back of the unit for a cleaner wiring
arrangement. All wiring to the unit is done via separate DIN-RAIL type terminal modules and
then DB-25/15 cables connect to the unit.
The SC-2124 front panel includes a large-character, 4-row by 20-column, backlit LCD display
and application keypad. The display has several Run Screens: a SCAN Screen that displays
each enabled scanner channel, one channel screen at a time; one or more Custom Screens
to display up to four user-specified scanner channels per screen; and a SNAPSHOT Screen
that displays each enabled channel’s analog input reading at the time of the last
SHUTDOWN
plus indication of the “First-Out” channel causing the shutdown.
Utilizing an on-board RS-232 communications port with a convenient DB-9 connector, the
SC-2124 provides powerful communications capabilities. Quick and easy configuration is
done from a laptop computer using the Dynalco DYNALINK software. The unit can also
switch protocols and talk Modbus RTU for continuous remote monitoring.
