LG Electronics K4F-PIDA Buffer Memory Configuration and Functions, Buffer memory Configuration

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Chapter 4. BUFFER MEMORY CONFIGURATION AND FUNCTIONS

Chapter 4. BUFFER MEMORY CONFIGURATION AND FUNCTIONS

The PID control module has the PLC CPU and the buffer memories for communications.

4.1 Buffer memory Configuration

The followings describe buffer memory configuration.

4.1.1K7F-PIDA Buffer Memory

Address

Function

Descriptions

Default

 

Read /

 

(Decimal)

Setting

 

Write

 

 

 

 

 

 

Loop enable/disable

 

 

 

 

 

0

Specification area

 

 

 

 

 

 

(loop 0 to 15)

Bit On(1): Enabled

Disabled

 

R/W

 

 

Loop enable/disable

Bit Off(0): Disabled

 

 

 

 

 

 

 

1

Specification area

 

 

 

 

 

 

(loop 16 to 31)

 

 

 

 

 

 

Auto/Manual operation

 

 

 

 

 

2

Specification area

 

 

 

 

 

 

(loop 0 to 15)

Bit On(1): Auto

Auto

 

R/W

 

 

Auto/Manual operation

Bit Off(0): Manual

 

 

 

 

 

 

 

3Specification area (loop 16 to 31)) Forward/Reverse action

4Specification area

 

(loop 0 to 15)

Bit On(1): Reverse

 

 

Forward

R/W

 

Forward/Reverse action

Bit Off(0): Forward

 

 

 

 

 

 

 

5

Specification area

 

 

 

 

 

 

 

(loop 16 to 31)

 

 

 

 

 

 

 

Set data enable/disable

Bit On(1) : Set each content of address

 

 

6

Specification area

0, 1, 4, 5, 10 to 41, and 74 to 201

 

 

 

(loop 0 to 15)

to a new setting.

 

No Setting

 

 

 

Bit Off(0) :

The previous values

of

R/W

 

Set data enable/disable

Values

 

address 0, 1, 4, 5, 10 to 41, and

 

7

Specification area

 

 

74 to

201

remains without

 

 

 

(loop 16 to 31)

 

 

 

change.

 

 

 

 

 

 

 

 

 

 

8

Loop run information

 

 

 

 

 

 

(loop 0 to 15)

Bit On(1) : Run

 

 

Read

 

 

 

 

 

Bit Off(0) : Stop

 

 

Only

9

Loop run information

 

 

 

 

 

(loop 16 to 31)

 

 

 

 

 

 

 

 

 

 

 

 

 

10 to 41

SV of each loop

Setting range

:

0 to 16000

 

“0”

R/W

42 to 73

PV of each loop

Input range

:

0 to 16000

 

“0”

R/W

74 to 105

M-MV of each loop

Setting range

:

0 to 16000

 

“0”

R/W

106 to 137

P of each loop

Setting range

:

0 to 10000

 

“500”

R/W

138 to 169

I of each loop

Setting range

:

0 to 30000

 

“1000”

R/W

170 to 201

D of each loop

Setting range

:

0 to 30000

 

“0”

R/W

202 to 233

MV of each loop

Output range

:

0 to 16000

 

Read

 

 

Bit 0 On(1) : out-of-range SV

 

 

 

 

 

Bit 1 On(1) : out-of-range PV

 

 

 

234 to 265

Error information of each loop

Bit 2 On(1) : out-of-range M_MV

 

Read

Bit 3 On(1) : out-of-range P

 

Only

 

 

 

 

 

 

Bit 4 On(1) : out-of-range I

 

 

 

 

 

Bit 5 On(1) : out-of-range D

 

 

 

4- 1

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Contents User’s Manual Contents Buffer Memory Configuration and Functions Functions of Buffer MemoryProgramming TroubleshootingDimensions Safety Precautions Waste Disposal Precautions Introduction IntroductionSpecifications General SpecificationsSpecifications General specificationsTable .2 Performance Specifications Performance SpecificationsItems Specifications Names of Parts and Functions DescriptionsPID Control Action Specifications Control Action Proportional Action P Action MV = Kp EWhen the proportional constant Kp is large Specifications Integral Action I Aaction Integral action at a constant deviationWhen a long integration time is given Specifications Derivative Action D Action Derivative action at a constant deviation+ K p S/K I E n Derivative constant Control cycle 100 ms Specifications PID ActionIntegral constant Specifications Forward/Reverse Actions Forward and reverse action with MV, PV and SVInstallation Installation AmbienceHandling Precautions InstallationBuffer Memory Configuration and Functions Buffer Memory Configuration and FunctionsBuffer memory Configuration Read Functions of Buffer Memory Specifying Auto/Manual Processing K7F-PIDA Addresses 2Specifying SET Data Enable/Disable K7F-PIDA Addresses 6 Etting PID Control Data Address 10 decimalThis area stores the MV of each loop MV output range is 0 to Read from Buffer Memory ⋅ ⋅ ⋅ GET, Getp Write to Buffer Memory ⋅ ⋅ ⋅ PUT, Putp Difference between PUT and PutpProgramming Basic ProgrammingProgramming 1 K7F-PIDAProgramming 2 K4F-PIDA Descriptions of the Program Initial SettingsApplication Programming Modules and their Signal Processing Conversion Module initialization Switch RD3A Pida AD4A RTD input module Power conversion device TC K type SV 200.0 C Programming Troubleshooting Procedure TroubleshootingErrors Indicated by RUN LED Flickering Run LED of enabled Loops Off Is RUN LED turned OFF? PID Control Module Hardware DefectDimensions DimensionsK7F-PIDA Dimensions K4F-PIDA Dimensions

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