Siemens HydroRanger 200 Instruction Manual Page 197

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7ML19981FC01 HydroRanger 200 – INSTRUCTION MANUAL Page 183
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Parameters
SmartLinx Reserved (750 to 769)
These parameters are reserved for optional SmartLinx communications cards and vary by
card. Refer to the SmartLinx documentation to determine if any of them are used.
Communications (P770 to P782)
The HydroRanger 200 communication ports are configured by a series of parameters that
are indexed by port. See
Communications
on page 83 for a complete description of
communications set-up.
Communication parameters are indexed to these communication ports, unless otherwise
noted:
P770 Port Protocol
The communications protocol used between the HydroRanger 200 and other devices.
The HydroRanger 200 supports the internationally recognized Modbus standard in both
ASCII and RTU formats. Other protocols are available with optional SmartLinx cards.
P771 Network Address
The unique identifier of the HydroRanger 200 on the network.
For devices connected with the Siemens Milltronics protocol this parameter is ignored.
For devices connected with a serial Modbus slave protocol, this parameter is a number
from 1-247. The network administrator must ensure that all devices on the network have
unique addresses. Do not use the value 0 for Modbus communications as this is the
broadcast address and is inappropriate for a slave device.
Port Description
1 RS-232 port (RJ-11 modular telephone)
2 RS 485 port on terminal block
Primary Index Communications Port
Values
0 Communications port disabled
1 * Milltronics Dolphin protocol (preset for port 1)
2 Modbus ASCII slave serial protocol
3 * Modbus RTU slave serial protocol (preset for port 2)
Primary Index Communications Port
Values
Range: 0 to 9999
1* Preset:
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