Siemens Pacemaker UM344-2 Manual de usuario descargar pdf (Pagina 85)

UM344-2 ON-LINE AND OFF-LINE OPERATION

August 1995

5.1.3.1 Display Functions The numerals displayed on the Digital Meter represent the value

of the PROCESS VARIABLE (PV) when the “PV”

annunciator is lit; see Figure 5-1. The units associated with PV

are chosen during transmitter configuration of the OPERATOR

DISPLAY BLOCK. Refer to section 5.1.1.2. There are three

OUTPUT DISPLAY CODE choices listed in Table 5.1 that

describe what information is displayed and how it will be

annunciated.

The VALVE (V) is always displayed as a percentage of

controller output and the “V” and “%” annunciators will be lit.

The SETPOINT (SP) is displayed in the same units as the

PROCESS VARIABLE (PV). When the controller is ON

depressing the FULL SCALE pushbutton will toggle the display

between “PV” and “V”. The ZERO pushbutton will toggle the

display between “PV” and “SP”.

TABLE 5.1 Output Display Code Choices

OUTPUT DISPLAY

CODE

LIT ANNUN. PV UNITS

0 (Percent) % Percent of full span (0 to 100)

1 (Process Variable) ENG Engineering Units (e.g., CEL, FAHR)

2 (Measured Variable) None CEL, OHMS, MV, KELV, RANK, FAHR

A M

PB AL % ENG

Auto/Manual

Status

Displayed

Variable

Displayed

Variable

Indicator

Status

Alarm

Status

Display

Code

FIGURE 5-1 Model 344 Digital Meter

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 182 183

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Siemens Pacemaker UM344-2 Manual de usuario Pagina 85