Modbus protocol, 9 diagnostics – KROHNE IFC 100 Converter Modbus EN User Manual
Page 16
6
MODBUS PROTOCOL
16
IFC 100
www.krohne.com
08/2014 - 4001410101 - AD Modbus IFC 100 R01 en
6.8.3 Modbus parameters
6.9 Diagnostics
The Modbus interface supports the diagnostic function defined by the "Modbus Application
Protocol Specification".
Function code is 08 (0x08).
Modbus protocol
address
Description and settings
Converter Fct.
No.
Type
Number of
registers
50000
baud rate
baud rate
baud rate
baud rate
1200 / 2400 / 3600 / 4800 / 9600 / 19200
(default) / 38400 / 57600 / 115200
C5.8.2
ulong
2
50002
slave address
slave address
slave address
slave address
C5.8.1
byte
1
50003
parity
parity
parity
parity
0 = even parity (default)
1 = odd parity
3 = no parity
C5.8.3
byte
1
50004
data format
data format
data format
data format
1 = Big Endian
2 = Little Endian
C5.8.4
byte
1
Sub function code
Name
hex
dec
00
00
Return Query Data
01
01
Restart Communication Option
04
04
Force Listen Only Mode
0A
10
Clear Counters
0B
11
Return Bus Message Count
0C
12
Return Bus Communication Error Count
0D
13
Return Bus Exception Count
0E
14
Return Slave Message Count
0F
15
Return Slave No Response Count
10
16
Return Slave NAK Count (counter not used)
11
17
Return Slave Busy Count (counter not used)
12
18
Return Bus Character Overrun Count
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