KROHNE MFC 400 Modbus - Manual (Page 24)

5
MODBUS PROTOCOL
24
MFC 400
www.krohne.com 05/2013 - 4002525102 - AD Modbus MFC 400 R02 en
5.8.13 Modbus RS485 Communication Settings
34046 34046 34046 34046
(0x84FE)
CF27 Float 2 D1.1.25
34500 34500 34500 34500
(0x86C4)
CF25 Byte 1 D1.1.23
Modbus Function Codes "Read Holding Registers" (0x03) and "Write Multiple Registers" (0x10)
Holding
Register Name Description Type No. of
registers Values Display
Fct. No.
50000 50000 50000 50000
(0xC350)
Baud rate Baud rate for the RS485
Modbus Communication in
[bps]
Long 2 1200, 2400, 3600,
4800, 9600, 19200
(default), 38400,
57600, 115200
C6.8.2
50002 50002 50002 50002
(0xC352)
Transmission
Delay
Select transmission delay
between Modbus request and
Modbus response in [ms]
Float 2 0 (default)...0.04 C6.8.5
50004 50004 50004 50004
(0xC354)
Slave Address Modbus Slave Address Byte 1 1 (default)...247 C6.8.1
50005 50005 50005 50005
(0xC355)
Parity Parity for the RS485 Modbus
Communication
Byte 1 0 = Even (default)
1 = Odd
3 = Off
C6.8.3
50006 50006 50006 50006
(0xC356)
Register
Format
Switch Register Format Little
Endian or Big Endian
Byte 1 0 = Little Endian
1 = Big Endian
(default)
C6.8.4
50007 50007 50007 50007
(0xC357)
Stop Bits Number of Stop Bits Byte 1 1 = 1 Stop Bit
(default)
2 = 2 Stop Bits
C6.8.6
Modbus Function Code "Read Input Registers" (0x04)
Input
Register Name Type No. of registers Display
Fct. No.