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Thermon TraceNet TCM 18 User Manual

Page 45

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1.

The data highway address (a value between 1
and 247) for the second RS485 port.

2.

The communication protocol with the options
being Modbus ASCII (7 bit, 2 stop bit, no parity
format) or Modbus RTU (8 bit, 1 stop bit, no
parity format) for the second port.

3.

The communication baud rate with options of
9600, 19200, 38400, and 57600 for the second
port.

Noting the flashing cursor location on this screen,
press the UP or DOWN arrow keys to select any new
option and press ENTER to accept.

The flashing

cursor now moves to the next line where the process
may be repeated.

Press the PROG key at any point to exit for this se-
quence. If left in the program mode, the TCM18 will af-
ter a short wait automatically return to the scan mode.

PROG plus HIGH
TEMP ALARM

1

This first display screen indicates the heat tracing
circuit number selected.

Using the UP or DOWN

arrow select the desired circuit number or ALL and
press ENTER. The flashing cursor moves to the
high temperature alarm “TRIP” value and allows the
programming of the trip set points by using the UP or
DOWN key. Note that if NO TRIP has been selected
under the CONFIG key, this value will be renamed
the HHALARM (for high-high alarm) from TRIP. Press
ENTER to accept the new value. The flashing cursor
now moves to the “ALARM” value and allows the
programming of the alarm set point by using the UP or
DOWN key. Press ENTER to accept the new value.

Note that if the operator has selected to choose trip
preferences by circuit under the CONFIG key, an ad-
ditional screen display will prompt for the operator to
indicate a “Y” to confirm that TRIP functionality is de-
sired on the displayed circuit.

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