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Page 31
NJEX EUR ver. 08-2021
Section 5: Programming for Proportional-to-Flow Operation
Figure 56
pmp bat vmtr sig tnk
MODBUS Parameters
9600,N,RTU Comm=1.
is programed this function will be disabled,
figure 55
.
Note:
the Modbus address is also used as the Sentry4
I.D.
MODBUS Parameters
There are 4 items of information that may be entered
on this screen. They are baud, parity, framing mode,
comm port designation,
figure 56
.
• 1st press the
Enter / Select
key and the baud rate
window will begin to flash. Next use the
Up Arrow
or
Down Arrow
key to increment the value to the
required baud rate of your Modbus system. Avail-
able baud rates are 1200, 2400, 4800, and 9600.
• Next press the
Enter / Select
key and the parity
window will begin to flash. Next use the
Up Arrow
or
Down Arrow
key to increment the value to the
required parity of your Modbus system. Parity op-
tions are odd, even, and none.
• The 3rd pressing of the
Enter / Select
key will bring
you to the framing mode window will begin to flash.
Next use the
Up Arrow
or
Down Arrow
key to
increment the value to the required framing mode of
your Modbus system. Available options are: RTU or
ASCII.
• The final time you press the
Enter / Select
key, the
comm port selection can be made. The N-300 has
two comm ports. Use the
Up Arrow
or
Down Arrow
key to increment the value to select one of three op-
tions:
MODBUS Parameters
COMM = . . ONLY Communications Port #2 will be
available for communications using Sentry Soft-
ware Communications Protocol.
COMM = 1 . Communications Port #1 will be available
for Modbuss Communications, and Communica-
tions Port #2 will be available for communications
using Sentry Software Communications Protocol.
COMM = 1 2 Communications Port #1 and Commu-
nications Port #2 will be available for Modbuss
Communications, and NO ports will be available
for communications using Sentry Software Com-
munications Protocol.
Conclusion
This concludes programming the N-300G controller
in Proportional-to-Flow Mode. If this NJEX System is
the only unit that will be initialized at this time,
,
will contain the
next appropriate information on the NJEX based on
Proportional-to-Flow Mode operation. If other NJEX
units will be operating in Proportional-to-Time Mode
then proceed to the following Section 6.
Summary of Contents for NJEX 6300G
Page 1: ...NJEX 6300G 7300G N A T U R A L G A S O D O R I Z A T I O N S Y S T E M...
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Page 3: ...NJEX 6300G 7300G Instruction Operating Manual Version 08 2021...
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