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GB-RaychemNGCUIT20RD-IM-H58531 INSTALL-168 05/15
INDUSTRIAL HEAT TRACING SOLUTIONS
To CRM/S,
RMM or
NGC-20
To host
computer
Data +
Shield
Data –
5 4 3 2 1
T 9 8 7 6
Field Port
RS-485-1
Data +
Shield
Data –
Remote Port
RS-485-2
Remote Port
Field Port
Back Side of UIT
RS-485-2 RS-485-1
5 4 3 2 1
T 9 8 7 6
communication
The NGC-UIT2-ORD has two isolated RS-485 ports located at
the bottom.
field side port (rs-485-1)
The RS-485 port labeled “RS-485-1” is the field side port
that is used to communicate with ModBus devices (ie. NGC-
30-CRM/S, RMM2 and NGC-20).
Host port (rs-485-2) – optional
The RS-485 port labeled “RS-485-2” is the Host side port
that is used to communicate with to a host computer (using
Raychem Supervisory Software) or to a DCS.
local Host port (rs-232) – optional
The RS-232 port can be used as local Host port that is used
to communicate with to a host computer (using Raychem
Supervisory Software). If the RS-232 port is utilized, the
supplied female to female, 9-pin null modem adaptor cable
must be used.
connection
The wiring connection to both RS-485-1 and RS-485-2 are the
same.
Install the two 9 pin D-SUB to 10 pin terminal block on a DIN
rail inside the panel enclosure. (Note: These should be placed
were the Serial cable from the bottom of the NGC-UIT2-ORD
mounted on the panel door can be easily accessible).
Connect one end of the Serial communication cables to the
ports labeled RS-485-1 and RS-485-2 on the touch screen and
the other ends to the 9 pin D-SUB to 10 pin terminal block.
(
note
: The lengths of Serial communication cables are based
upon were the touch screen is located and the 9 pin D-SUB to
10 pin terminal block. You should locate these parts first, mea
-
sure, and then purchase your Serial communication cables).
Using a shielded, twisted pair cable ( Belden CDT cable 8761
or equivalent, maximum length is 1219 meters (4000 feet),
connect to terminals 3 (–) and 4 (+) on the 9 pin D-SUB to 10 pin
terminal blocks taking note of the polarity.
The NGC-UIT2-ORD contains no user-serviceable parts. Contact
your Pentair Industrial Heat Tracing Solutions representative for
service and an authorization number if required.
The touch screen area of the NGC-UIT2-ORD may be cleaned
with a damp or dry cloth. Typical window cleaning agents may be
applied to aid in the removal of dirt, dust and grease.
Do not use
abrasive cleaners.
servicing
cleaning