Terminal Unit
Control (TUC)
104 UNT-IOM-6
Using the human interface, read the operating control mode.
1. Read and record the initial TUC address.
2. Set the TUC DIP switch #5 and #7 to ON (address = 10). The
remaining switches will be off.
3. Short and hold the test input.
4. The LEDs will blink to define an operating control mode. The
operating control mode information will be displayed in a series of
three blink sequences.
Sequence 1: With the test input shorted continuously, all
LEDs go off for one second.
Sequence 2: LED #5 will light to indicate that sequence 2 is
currently displayed. LEDs one through four
will display the first part of the operating control
mode.
Sequence 3: LED #6 will light to indicate that sequence 3 is
currently being displayed. LEDs one through four
will display the second part of the operating control
mode.
5. Refer to Table 26 on page 77 to interpret the operating control
mode derived from the blink sequences.
6. After reading and recording the operating control mode, return the
DIP switches to the positions recorded in step 1. Short the test
inputs to set the address in the TUC EEPROM.
Reading the
Operating Control
Mode
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