Modbus ® Communication Protocol Configuration - Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual

Reference Manual
00809-0100-4530
5.9 Modbus
configuration
The Rosemount 5300 Level Transmitter can communicate with RTUs using Modbus RTU
(often referred to as just "Modbus"), Modbus ASCII, and Levelmaster (also known as
"ROS," "Siemens," or "Tank" protocol).
Table 5-5: List of RTU Supported Protocols
RTU
ABB Totalflow
Bristol
Emerson ROC800 Series
Emerson FloBoss
Kimray
ScadaPack
Thermo Electron Autopilot
(1) Levelmaster protocol should be used when using the Emerson Digital Level Sensor (DLS) User
Program or Application Module together with the device. Use Modbus RTU in other cases.
Modbus ASCII is not commonly used, since it doubles the amount of bytes for the same
message as the Modbus RTU.
If you do not have any of these RTUs, check your RTU manual to see which protocols it
supports.
5.9.1 Change Modbus communication parameters using
Rosemount Radar Master
To change the Modbus address and communication parameters in Rosemount Radar
Master:
Prerequisites
Note
To change Modbus communication parameters, the Rosemount 5300 Level Transmitter
must use HART address 1, the default address.
Procedure
1. Start Rosemount Radar Master and connect to the transmitter.
2. Select Setup → General.
3. Select the Communication tab.
4. Select Modbus Setup.
5. In the Modbus Setup window, select Enter Modbus communication settings.
Reference Manual
®
communication protocol
™ ™
ControlWave Micro
™
107
® ™
Inc. DACC 2000/3000
Protocols
Modbus RTU, Levelmaster
Modbus RTU
(1)
Modbus RTU, Levelmaster
(1)
Modbus RTU, Levelmaster
Levelmaster
Modbus RTU
Modbus RTU, Levelmaster
Configuration
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