Rockwell-automation Current Input Module Instrukcja Użytkownika Pobierz pdf (Strona 34)

4Ć16

4.3 Monitoring Data and Configuration

Run the ReSource Software. Use the MONITOR function in

DCS 5000/AutoMax systems or the POINT MONITOR function in

AutoMate systems to check the contents of the registers. Note that

you need to configure the channels before you can monitor their

contents.

Status register values are in hexadecimal format. All other register

values are in decimal.

4.4 Sample DCS 5000/AutoMax Current Input

Application Task

The sample DCS 5000/AutoMax current input application task in

figure 4.12 is written for a Current Input module in slot 2 which is

connected to three 4Ć20 mA transmitters which are wired into a

pressure polymerization process.

One transmitter is used to sense the level of the material in the

reactor. The second transmitter has its span calibrated for 0 to 3000

psig (gauge poundsĆperĆsquare inch) and is used during startup

operation. The third transmitter has its span calibrated for 1940 to

1960 psig and is used for process control.

Channel 0: Material Level

Process Parameters

Configuration Values

 Maximum = 20 feet Reg. 24 = 2000 (Scaled in

ąąą0.01 Ft)

 Minimum=-1feet Reg. 25 = -100

 High High Alarm = 18 feet Reg. 27 = 1800

 High Alarm = 16 feet Reg. 28 = 1600

 Low Alarm = 4 feet Reg. 29 = 400

 Low Low Alarm = 0 feet Reg. 30 = 0

Channel 1: Startup Pressure

Process Parameters

Configuration Values

 Maximum = 3000 psig Reg. 24 = 3000 (Scaled directly

ąąąin psig)

 Minimum = 0 psig Reg. 25 = 0

 High High Alarm = 2500 psig Reg. 27 = 2500

 High Alarm = 2000 psig Reg. 28 = 2000

 Low Alarm = 500 psig Reg. 29 = 500

 Low Low Alarm = 250 psig Reg. 30 = 250

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 65 66

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Rockwell-automation Current Input Module Instrukcja Użytkownika Strona 34