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Watlow Series D8 User Manual

Page 12

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List of Figures

Series D8 User’s Guide

x

Watlow Anafaze

Doc. 0600-3120-2000

3 Communicating by DeviceNet

Figure 3.1—RSNetWorx On-line with Found Devices 47

Figure 3.2—The D8 Registered in RSNetWorx 48

Figure 3.3—D8 Properties in RSNetWorx 49

Figure 3.4—Parameters Tab 50

Figure 3.5—Adding the D8 to the Scanlist 51

Figure 3.6—Scanner Input Properties 52

Figure 3.7—Advanced Mapping Dialog Box 53

Figure 3.8—Using Scanned Data in Logic 54

Figure 3.9—Contents of the PLC Memory 55

Figure 3.10—Explicit Write in Ladder 56

Figure 3.11—Explicit Read in Ladder 58

Figure 3.12—D84 Produced Static Input 65

Figure 3.13— D84 Consumed Static Output 65

Figure 3.14—D88 Produced Static Input 65

Figure 3.15—D88 Consumed Static Output 66

4 Operation and Setup

Figure 4.1—General Navigation Map 78

Figure 4.2—Keypad Navigation 79

Figure 4.3—Loop Display 80

Figure 4.4—Loop Display with Alarm Code 81

Figure 4.5—Display for Failed Sensor Alarm 81

Figure 4.6—Input Scaling 89

Figure 4.7—Activation and Deactivation of Process Alarms 96

Figure 4.8—Application Using Process Variable Retransmit 99

Figure 4.9—Secondary Set Point When Primary Loop Has Heat and Cool Outputs

101

Figure 4.10—Secondary Set Point When Primary Loop Has Heat Output Only 101

Figure 4.11—Example Application Using Cascade Control 103

Figure 4.12—Relationship of Secondary Loop Set Point to Primary Loop Process

Variable in Cascade Example 104

Figure 4.13—Relationship Between the Process Variable on the Master Loop and the

Set Point of the Ratio Loop 105

Figure 4.14—Application Using Ratio Control 106

5 Tuning and Control

Figure 5.1—On/Off Control 112

Figure 5.2—Proportional Control 113

Figure 5.3—Proportional and Integral Control 113

Figure 5.4—Proportional, Integral and Derivative Control 114

Figure 5.5—Time Proportioning and Distributed Zero Crossing Waveforms 118

6 Menu and Parameter Reference

Figure 6.1—Operator Parameter Navigation 121

Figure 6.2—Setup Menus and Parameters 124

Figure 6.3—Linear and Nonlinear Outputs 143