Advertisement
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.
servicing
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.
cleaning
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.
INDUSTRIAL HEAT TRACING SOLUTIONS
Back Side of UIT
RS-485-2 RS-485-1
GB-RaychemNGCUIT20RD-IM-H58531 INSTALL-168 05/15
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.
Shield
5 4 3 2 1
T 9 8 7 6
Field Port
RS-485-1
Field Port
Remote Port
To CRM/S,
Data +
RMM or
Data –
NGC-20
Data +
To host
Data –
computer
Shield
5 4 3 2 1
T 9 8 7 6
Remote Port
RS-485-2
7 / 8
Advertisement
