www.selectronix.us
Selectronix, Inc.
(425) 788-2979
SLC4075 TouchScreen Gateway Installation & Operating Manual
GENERAL INFORMATION
Introduction
The
SELECTRONIX, INC. SLC4075-n, TouchScreen
Gateway (TSGW) is a human-machine interface that
is used with our SUPERSTEP SERIES 4000
controllers and optionally our SLC4060, Process
Gateway (PGW).
It provides an interface to building
management systems that use the BACnet, Modbus
protocols or many other supported protocols.
The TSGW, SLC4075-4 is based on the Red Lion
CR1000 Operator Interface, which has a 4.3” TFT, touch
screen color display, while SLC4075-7 has a 7” screen,
and the SLC4075-10 has a 10” screen. References to
TSGW or SLC4075 apply equally all units.
The unit is configured using Red Lion’s Crimson 3.1
software, which is a free download. This unit supports
over 300 protocols which may be mapped to the internal
data points.
The TSGW contains a pre-programmed database and
BACnet/IP and Modbus addresses for the accessible
parameters. The parameters are listed in Table 2, Building
Management Interface Variable Assignment
The SLC4075, CR1000-based units have an SD card slot
for upgrading the database in the field. This allows for
easy field upgrades with operating personnel. It also has
a System Menu mode that enables configuring the
network parameters from the front panel, so initial
commissioning may also be performed by the local
network administrator, also eliminating the need for a PC
configuration download to the unit. An internal battery
maintains the realtime clock.
These features may reduce
or completely eliminate the need for the on-site
configuration using the Crimson 3.1 software.
Communication interface is via a 10/100-base-T Ethernet
port, or an asynchronous RS-232/422/485 port. Non-
volatile memory is provided to store configuration and
other vital information.
An optional NEMA 4/IP65 enclosure is available.
Power for the unit TSGW is 24V dc +/- 20%. The power
for the SLC4075-4 is provided by an auxiliary 24V output
of the SLC4060.
Power for SLC4075-7 or SLC4075-10
must be provided by an external 24V dc power supply.
Status LEDs on the front page of the touchscreen shows
the individual elements that are activated, along with a
numerical readout of the percent of step command and
load limit, for both the Auxiliary and the BMS control. A
large “AUX/DDC” 2-position switch, duplicated on every
page, allows for convenient status and control of the
equipment. This switch allows control of the SLC4000 by
an external signal when in the “Aux” (Auxiliary) position
OR by an internal PID loop using Direct Digital Control,
“DDC”.
Additional pages provide for detailed information, status,
and ability to change individual configuration and
customization settings.
Classic Lead Lag (CLL) is an optional feature that
provides most of the traditional forms of Lead/Lag control
for multiple boiler configurations. CLL provides several
control profiles along with individual control of cascaded
SLC4000 units. The SLC4060 (PGW) relays or
SLC4000-configured XRelays may be used to control a
circulating pump per boiler, including On and Off delay
control.
SLC4080 provides the capability to add 8 additional
isolated digital inputs, which uses 24 V dc excitation.
The standard SLC4000, using the dedicated input
configuration, provides 8 additional relays outputs.
