2.1 MODES OF OPERATION
The controller can operate in one of two MODES i.e. the OPERATOR mode or the TUNE mode. This distinction is
made because different displays appear on the front of the controller for each mode and you can perform different
functions in each mode.
The OPERATOR mode is the normal mode of operation. It is explained in detail in Section 3. The TUNE mode is
used for tuning and programming the controller prior to going on-line or during operation. Tuning is explained in detail
in Section 4.
A third mode is used for calibration of the controller. This CAL mode is explained in detail in Section 6. The controller
cannot operate while in the CAL mode.
Before putting the controller into operation please read the rest of this section, which explains the display and keypad
The front panel multicolor alphanumeric, vacuum fluorescent display provides all controller communications with the
The central portion of the display is blue and contains
sixteen alphanumeric characters in two rows of 8
characters each. This display shows key words to
prompt and inform you during all phases of operation.
2.3 STATUS INDICATORS
Yellow MODE and STATUS indicators on the right side of the display illuminate to indicate specific controller status.
The yellow TUN indicator illuminates when the controller is in the TUNE mode.
The yellow CAL indicator illuminates when the controller is in the CALIBRATION mode. All
control functions except the alarms are inactive while in the CAL mode.
The yellow REM indicator illuminates when the REMOTE SETPOINT option is included and in
use. See Section 3.4. Also ON by computer command.
The yellow REM indicator will flash when a Digital Communications option is included and in
use. See Section 3.4.
The yellow MAN indicator will illuminate when the controller outputs are under manual control.
ECLIPSE INSTRUMENTATION DIVISION