Modbus protocol – KROHNE MFC 400 Modbus User Manual
Page 22
5
MODBUS PROTOCOL
22
MFC 400
www.krohne.com
05/2013 - 4002525102 - AD Modbus MFC 400 R02 en
5.8.10 Filters
5.8.11 System Control
Modbus Function Codes "Read Holding Registers" (0x03) and "Write Multiple Registers" (0x10)
Holding
Register
Name
Type
No. of
registers
Values
Display
Fct. No.
45000
45000
45000
45000
(0xAFC8)
Flow Direction
Byte
1
1 = Forwards
2 = Backwards
C1.3.1
45500
45500
45500
45500
(0xB1BC)
2 Phase Threshold
Float
2
0...1000
C1.5.3
45502
45502
45502
45502
(0xB1BE)
Pipe Diameter
Float
2
0.001...0.5 [m]
C1.3.1
45504
45504
45504
45504
(0xB1C0)
User Flow Offset
Float
2
-32...32
C1.1.2
45506
45506
45506
45506
(0xB1C2)
Low Flow Cut-Off
Float
2
0...10 [%]
C1.3.4
45508
45508
45508
45508
(0xB1C4)
Pressure Suppression Time
Float
2
0...20 [s]
C1.3.2
45510
45510
45510
45510
(0xB1C6)
Pressure Suppression Cut-Off
Float
2
0...10 [%]
C1.3.3
45512
45512
45512
45512
(0xB1C8)
Flow Correction
Float
2
-10...10 [%]
C1.1.4
Modbus Function Codes "Read Holding Registers" (0x03) and "Write Multiple Registers" (0x10)
Holding
Register
Name
Type
No. of
registers
Values
Display
Fct. No.
44000
44000
44000
44000
(0xABE0)
Function
Byte
1
1 = Off / No Action
2 = Flow=0
C1.4.1
44001
44001
44001
44001
(0xABE1)
Condition
Byte
1
0 = Density
1 = Temperature
C1.4.2
44500
44500
44500
44500
(0xADD4)
Density Min. Limit
Float
2
0.08...5000 [kg/m³]
C1.4.3
44502
44502
44502
44502
(0xADD6)
Density Max. Limit
Float
2
0.08...5000 [kg/m³]
C1.4.4
44504
44504
44504
44504
(0xADD8)
Temperature Min. Limit
Float
2
73...773 [K]
C1.4.3
44506
44506
44506
44506
(0xADDA)
Temperature Max. Limit
Float
2
73...773 [K]
C1.4.4