Baud Rate; Modbus Rtu; Profibus Dp V0 - janitza Prophi Operating Instructions Manual

Reactive Power Controller

Baud rate

The setting of the baud
rate is valid for Modbus
RTU only.
For Profibus DP V0 protocol the set baud rate is not
used, but will be determined by the master (e.g. PLC)
and transmitted to Prophi .
Example: Select baud rate.
Please move to device
address in expanded
programming using key
3.
Now go to baud rate
using key 2.
Confirm with key 1.
In this example, the baudrate 4= 115.2kbps is indicated,
the number is flashing.
Select baud rate with key 3 (0, 1, 2, 3 or 4).
Confirming key 1 for about 2 seconds, the changes are
saved and Prophi keeps working in automatic mode.
Number Baud rate for Modbus RTU
0 9.6
1 19.2
2 38.4
3 57.6
4 115.2 kbps
= Key 1
kbps
kbps
kbps
kbps
= Key 2 = Key 3

Modbus RTU

Transmission mode
RTU-Mode with CRC-Check
Transmission parameters
Baud rate : 9.6, 19.2, 38.4, 57.6, 115.2kbps
Data bits : 8
Parity : none
Stop bits : 2
Realised functions
Read Holding Register, Function 03
Preset Single Register, Function 06
Preset Multiple Register, Function 16
Data formats
char : 1 Byte (0 .. 255)
word : 2 Byte (-32768 .. +32767)
long : 4 Byte (-2 147 483 648 .. +2 147 483 647)
The sequence of bytes is highbyte before lowbyte.

Profibus DP V0

The Prophi is a slave device and corresponds to the
fieldbus directive PROFIBUS DP V0, DIN E 19245 part
3. The PROFIBUS user organization has listed Prophi
with the following entries:
Device description : Prophi
Ident-Number
GSD
The GSD file is specific for the device. Here the trans-
mission parameters and the kind of measured data are
determined. The GSD file for Prophi with option "In-
terface" belongs to the contents of delivery.
While creating the program for the PLC (master), the
GSD file is implemented into PLC program.
: 04B9 HEX
: PROF04B9.GSD
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