Modbus protocol – KROHNE MFC 400 Modbus User Manual
Page 21
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