Rockwell Automation 61C542 Voltage Input module - Manual (Page 38)

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4.5 Sample AutoMate Voltage Input
Application Program
The sample AutoMate voltage input application program in figure 4.13 is
written for a Voltage Input module in a remote rack that is controlled by
an AutoMate 40 processor. If your system uses an AutoMate 30
processor, the addresses you use must be changed accordingly. If the
Voltage Input module were in a local rack, LOCIN/LOCOUT commands
would replace the REMIN/REMOUT commands. Refer to the A30/A40
Software Reference Manual (JĆ3150) for additional information.
In the sample AutoMate program, the Voltage Input module is
connected to three singleĆended, 0Ć10V transmitters, which are in
turn wired into a pressure polymerization process.
One transmitter is used to sense the level of the material in the tank.
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
D Maximum = 20 feet Reg. 24 = 2000 (Scaled in
0.01 Ft)
D Minimum = - 1 feet Reg. 25 = -100
D High High Alarm = 18 feet Reg. 27 = 1800
D High Alarm = 16 feet Reg. 28 = 1600
D Low Alarm = 4 feet Reg. 29 = 400
D Low Low Alarm = 0 feet Reg. 30 = ăă0
Channel 1: Startup Pressure
Process Parameters
Configuration Values
D Maximum = 3000 psig Reg. 24 = 3000 (Scaled
directly in psig)
D Minimum = 0 psig Reg. 25 = ăăă0
D High High Alarm = 2500 psig Reg. 27 = 2500
D High Alarm = 2000 psig Reg. 28 = 2000
D Low Alarm = 500 psig Reg. 29 = ă500
D Low Low Alarm = 250 psig Reg. 30 = ă250
Channel 2: Operating Pressure
Process Parameters
Configuration Values
D Maximum = 1960 psig Reg. 24 = 10000 (Scaled in
0.01% of span)
D Minimum = 1940 psig Reg. 25 = ăăă0
D High High Alarm = 1958 psig Reg. 27 = 9000
D High Alarm = 1955 psig Reg. 28 = 7500
D Low Alarm = 1945 psig Reg. 29 = 2500
D Low Low Alarm = 1942 psig Reg. 30 = 1000