Appendix A: Application Examples A.3 Furnace Pressure Control with 3-State Pulse Output
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Outputs
The feed to the potentiometer should be set to 5.0mA which gives 0–5V output
since the potentiometer resistance is 1000Ω:
1Outputs → Analog Outputs → AO1 → Mode = Direct.
2Outputs → Analog Outputs → AO1 → FixedCurrent = 5 mA.
3Outputs → Analog Outputs → AO1 → Identity = PotFeed.
Configure DO1 and DO2 to the low and high pressure alarms:
1Outputs → Digital Outputs → DO1 → Mode = PositiveLogic.
ThreeStatePulse
Feedback
AI1[Value]
Cancel
OK
AO1: Ana Out 1
Mode
Direct
Cancel
OK
AO1: Ana Out 1
Fixed Current
5mA
Cancel
OK
AO1: Ana Out 1
Identity
PotFeed
Cancel
OK
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