Siemens HydroRanger 200 - Modbus; Smartlinx; Dolphin Plus

7ML19985FC03 HydroRanger 200 - INSTRUCTION MANUAL Page 89
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Communications
Modbus
The Modbus protocol is supported in the base unit and can be configured using the
Communications parameters P770 to P782.
To set up communications with a Modbus RTU master device on port 2 using RS-485, set
the following parameters:
SmartLinx
Other protocols are available through optional SmartLinx communications modules.
Details on how to install and program these modules are contained in the SmartLinx
documentation.
Dolphin Plus
Dolphin Plus software makes it easy to record and compare parameter sets for all the
HydroRanger 200s in your company. Dolphin Plus uses a proprietary protocol called
Dolphin to communicate with Siemens Milltronics instruments. This protocol is set when
P770 = 1.
By default the settings for port 1 (RJ-11 connection) and Dolphin Plus match. These
settings are:
Parameter Index Value Description
P770
23
Modbus RTU slave
P771
2 1
Network address, only used for RS-485
P772
29.6
Data rate of 9600 baud
P773
2 0
No parity, common setting
P774
28
8 data bits, common setting
P775
2 1
1 stop bit, common setting
P778
20
No modem connected
P782
2 0
Index parameter values globally
Parameter Index Value Description
P770 1 1 Dolphin
P772 1 115.2 Data rate of 115.2 Kilo baud
P773 1 0 No parity, common setting
P774 1 8 8 data bits, common setting
P775 1 1 1 stop bit, common setting