www.selectronix.us
Selectronix, Inc.
(425) 788-2979
SLC4075 TouchScreen Gateway Installation & Operating Manual
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19
Classic Lead Lag
Classic Lead Lag (CLL) is an optional feature that provides several different sequencing profiles to match specific control
objectives, in addition to providing the ability to define a custom profile.
•
The TSGW controls a special CLL version of our SLC4000 step controller.
•
Up to 3 expansion units may be cascaded from the master, allowing direct control for up to 4 boilers with up to 8
relays or 4 fuel-based boilers when SLC4000-1 units are used, which have an analog output.
•
The Lead boiler may be changed by a pre-set interval from 1 to 1000 hours (41+ days).
•
Each of the 4 primary S4Ks are software enabled and disabled, and provide automatic recognition and re-
configuration when a unit’s online status has changed, either due to the lead unit being changed, a limit string
event, or an operator action.
•
Auxiliary pilot relays may be activated when an individual S4K has any active output, suitable for signaling
contactors to operate fans or pumps. The auxiliary relays may be on the Process Gateway (PGW) or on another
SLC4000 configured as an XRly unit. On and Off delays may be individually specified for each of the 4
corresponding relays.
•
For more details, see “SLC4000Addendum_ClassicLeadLagFeaturesAndControls.pdf” available at
www.selectronix.us
in the Support Section.
MSTP Inst ID Device Instance (Future Use)
This box is for future use to allow for changing the Instance ID from the default 4060.
MS/TP support is provided by an optional BACnet I/P to MS/TP converter,
SLC4082. See
“
SLC4000Addendum_BACnetMSTPConverterWiring.pdf” ,
available at
www.selectronix.us
in the Support Section.
•
Modbus TCP/IP slave is supported natively.
•
Modbus RS485 CR1000 support is provided by adding at additional cost:
o
SLC4072-3, Adapter, RJ12 to DB9M, includes a 7’ cable
o
SLC4070, RS232-RS485 opto-isol, DIN mnt (req ext. 10-30V dc Pwr Supply)
TSGW Information
a.
TSGW Firmware Version
b.
DDC Values Enabled/Disabled annunciation
a.
If DDC values are enabled, the originating source is displayed, either Not Set, PGW, or TSGW
c.
DDC Ld Lmt Status and originating source, either Not Set, PGW, or TSGW
d.
DDC On Dly Status and originating source, either Not Set, PGW, or TSGW
e.
TSGW Fault
f.
IP Addr: is the configured IP address stored in the TSGW
g.
Net Mask is the configured Subnet Mask stored in the TSGW
h.
Gateway IP is the configured default network gateway in the TSGW
i.
MAC Addr: is the MAC address of the TSGW
