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Modbus protocol – KROHNE MFC 400 Modbus User Manual

Page 21

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MODBUS PROTOCOL

5

21

MFC 400

www.krohne.com

05/2013 - 4002525102 - AD Modbus MFC 400 R02 en

5.8.8 Density Calibration Coefficients

5.8.9 Density Configuration

Modbus Function Code "Read Input Registers" (0x04)

Input
Register

Name

Type

No. of registers

Display
Fct. No.

33000

33000

33000

33000

(0x80E8)

DCF2

Float

2

C1.8.2

D1.2.2

33002

33002

33002

33002

(0x80EA)

DCF3

Float

2

C1.8.3

D1.2.3

33004

33004

33004

33004

(0x80EC)

DCF4

Float

2

C1.8.4

D1.2.4

33006

33006

33006

33006

(0x80EE)

DCF6

Float

2

C1.8.6

D1.2.6

33008

33008

33008

33008

(0x80F0)

DCF7

Float

2

C1.8.7

D1.2.7

33010

33010

33010

33010

(0x80F2)

DCF8

Float

2

C1.8.8

D1.2.8

33500

33500

33500

33500

(0x82DC)

DCF1

Byte

1

C1.8.1

D1.2.1

33501

33501

33501

33501

(0x82DD)

DCF5

Byte

1

C1.8.5

D1.2.5

Modbus Function Codes "Read Holding Registers" (0x03) and "Write Multiple Registers" (0x10)

Holding
Register

Name

Type

No. of
registers

Values

Display
Fct. No.

43000

43000

43000

43000

(0xA7F8)

Density Mode

Byte

1

0 = Actual

1 = Fixed

2 = Referred

3 = Standard

C1.2.2

43500

43500

43500

43500

(0xA9EC)

Fixed Density Value

1

Float

2

0.08...5000 [kg/m³]

C1.2.3

43502

43502

43502

43502

(0xA9EE)

Density Referred Temperature

2

Float

2

28.15...773.15 [K]

C1.2.3

43504

43504

43504

43504

(0xA9F0)

Referred Density Slope

2

Float

2

0...65

C1.2.4

43506

43506

43506

43506

(0xA9F2)

Standard Density Temperature

3

Float

2

28.15...773.15 [K]

C1.2.5

43508

43508

43508

43508

(0xA9F4)

Standard Density k0

3

Float

2

0...5000

C1.2.6

43510

43510

43510

43510

(0xA9F6)

Standard Density k1

3

Float

2

-100...100

C1.2.7

43512

43512

43512

43512

(0xA9F8)

Standard Density k2

3

Float

2

-10...10

C1.2.8

1 Only if Density Mode = Fixed
2 Only if Density Mode = Referred
3 Only if Density Mode = Standard