Honeywell UDC 3300 manual Xn Value Yn Value, Segment characterization Totalizer function

8-segment characterization

Totalizer function

This is available as part of the Math Algorithm option. Two 8- selections can made in Section 3 – Configuration; Set Up group ALGORTHM, under function prompts:

8SEG CH1

Xn VALUE

Yn VALUE

8SEG CH2

Xn VALU2

Yn VALU2

An 8-segment characterizer can be applied to either Input 1, Input 2, Output 1, or Output 2. When Input 1 or Input 2 is used, the selected input’s Ratio and Bias are applied to the Xn values.

When one of the loop outputs is selected, the Xn Values are the output from the control algorithm, and the Yn Output is the final control element action.

An example of 8-segment characterization is shown in Figure 4-2.

A Flow Totalizer is available as part of the Math Algorithm option. This calculates and displays the total flow volume being measured by Input 1. Alternatively, it can be applied to either Input Algorithm 1 or Input Algorithm 2 to totalize the compensated flow rate being calculated by the algorithm.

The totalizer displays the current totalized flow value (up to seven digits maximum). Seven scaling factors are available (from one to one million). The desired scaling factor is applied to the calculated value to extend the maximum total flow range that can be displayed.

Five integration rates are available to match the totalizer rate to the rate of flow being measured. The rates are:

Engineering units (EU) per second

EU per minute

EU per hour

EU per day

Millions of units per day

The totalizer value is stored in nonvolatile memory once every eight hours. If power is lost while the totalizer is in operation, the current value of the totalizer will be lost. When power is restored, the totalizer will start operation for the last value stored in nonvolatile memory. The Σ (Sigma) display will blink to indicate this condition. Reset the totalizer.

The totalizer can be reset from the keyboard whenever desired. The totalizer should always be reset to initialize the counters whenever it is enabled, otherwise, the “Σ ” (Sigma) display will blink.

Refer to Section 3 – Configuration, Set Up group ALGORTHM, function prompt TOTALIZER to select an application, and the function prompts that follow TOTALIZER to enter your scale factor and rate of integration.

184 UDC 3300 Controller Product Manual 4/00