User guide

Training Manual

Front Face Configuration Lab – Datapoint Configuration

4-5

Commonly Used

Locations in Single

Loop Controller

Location

C108 Rate time (tuning parameter in minutes)

C111 Manual Reset (tuning parameter in percent

C115 Control Range (Control Functions)

C116 Control Lower Range (Control Functions)

C125 Setpoint Limit high (Control Functions)

C126 Setpoint Limit Low (Control Functions)

L106 Control Action (Control Functions)

L109 Reverse Value (Control Functions)

L114 Auto Enable (smoothing the constant)

L120 Manual Fallback Disable

B335

Alarm Index Selection of Alarm Function

Hi/Low Alarms

No Alarms

Hi Only

Low Only

Hi Hi-Hi

Low / Low-Low

Deviation from setpoint

4. Set the Alarm Limits and Alarm Index (Alarm Function): We will configure a Low

and a High alarm for the process variable.

# You can configure 2 alarms on the process variable. The two alarms could be High

only, Low only, High & Low, High & High-High, Low &Low-Low, (+) & (-)

Deviation. The alarm limits are stored in locations C103 and C104. Refer to Table 4-2

for a detailed listing of locations and alarm functions.

• Using the arrow keys, select location C103 and enter a value 300. This will be the

High Alarm setpoint.

• Select location C104 and enter a value of 50. This will be the Low Alarm setpoint.

• Enter an Alarm Deadband of 2 by selecting location C105

• Select B335 and enter the value 0 for configuring the Alarm Index or Alarm

Function as High and Low.

• Press the E-mode (dot button) to exit the configure mode. This will complete the

alarm configuration for the single loop control strategy.