Process value simulation
The following process values can be simulated:
• Mass flow (Modbus address 2764)
• Density (Modbus address 2766)
• Medium temperature (Modbus address 2768)
• Sensor frame temperature (Modbus address 2770)
• Volume flow (Modbus address 2772)
The simulation can be activated through SIMATIC PDM in the menu Device → Simulation →
Process Variables.
8.1.9
Changing Modbus communication settings
Changing communication parameters, for example Baud Rate, Modbus Parity Framing or Bus
Address effects the Modbus communication as follows:
• The new settings have effect only after a reset, either by restarting the device or writing the
value 1 to Modbus address 600 Restart communication.
• The new settings will not have effect until the Modbus driver has responded to any ongoing
Modbus request.
NOTICE
Setting addresses in a multidrop network
It is recommended NOT to use the default address in a multi-drop network. When setting
device addresses, make sure that each device has a unique address. Replication of addresses
may cause abnormal behavior of the entire serial bus and make the master unable to
communicate with all slaves on the bus.
8.1.10
Float transmission
The Float Byte Order function ensures that the master and slave use the same sequence of the
bytes when transmitting float values. This enables the user to configure the transmitter using
the configuration tool, SIMATIC PDM, and operate the device with all types of PLCs without
reprogramming the PLC. The transmission order is configured by setting the parameter Byte
Order in the submenu Device → Communication.
Note
The command Restart Communication must be executed to activate the new byte order
setting.
Parameter assignment FCT010
8.1 Functions
SITRANS MASS 2100 & FC300 (FCT010/DSL)
Operating Instructions, 06/2020, A5E39788682-AB
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