DL205 User Manual, 4th Edition, Rev. D
xiv
Table of Contents
Bumpless Transfer 8–13
Loop Alarms 8–13
Loop Operating Modes 8–14
Special Loop Calculations 8–14
Ten Steps to Successful Process Control 8–16
PID Loop Setup 8–18
Some Things to Do and Know Before Starting 8–18
PID Error Flags 8–18
Establishing the Loop Table Size and Location 8–18
Loop Table Word Definitions 8–20
PID Mode Setting 1 Bit Descriptions (Addr + 00) 8–21
PID Mode Setting 2 Bit Descriptions (Addr + 01) 8–22
Mode/Alarm Monitoring Word (Addr + 06) 8–23
Ramp/Soak Table Flags (Addr + 33) 8–23
Ramp/Soak Table Location (Addr + 34) 8–24
Ramp/Soak Table Programming Error Flags (Addr + 35) 8–24
PV Auto Transfer (Addr + 36) from I/O Module Base/Slot/Channel Option 8–25
PV Auto Transfer (Addr + 36) from V-memory Option 8–25
Control Output Auto Transfer (Addr + 37) 8–25
Configure the PID Loop 8–26
PID Loop Tuning 8–41
Open-Loop Test 8–41
Manual Tuning Procedure 8–42
Alternative Manual Tuning Procedures by Others 8–45
Tuning PID Controllers 8–45
Auto Tuning Procedure 8–46
Use DirectSOFT Data View with PID View 8–50
Open a New Data View Window 8–50
Open PID View 8–51
Using the Special PID Features 8–54
How to Change Loop Modes 8–54
Operator Panel Control of PID Modes 8–55
PLC Modes Effect on Loop Modes 8–55
Loop Mode Override 8–55
PV Analog Filter 8–56
Creating an Analog Filter in Ladder Logic 8–57