Modbus Holding Registers Tables; Modbus Holding Registers Tables (Intro) - Siemens SITRANS F Coriolis FCT030 Function Manual

If the device is defined as a custody transfer (CT) device and the CT write protection DIP switch
is ON (locked), the device will deny all writes to CT parameters independent of the access
control.
Table 4-7 Access control
Access level Description
Read only The Modbus master is not able to modify the device configuration (setup parameters).
The Modbus master is only able to execute the command, to reset PINs.
This is the default level of the Modbus interface.
User The Modbus master has to provide the correct user PIN with Modbus register 8292 to reach this access
level.
The Modbus master is able to modify a subset of the device configuration.
Expert The Modbus master has to provide the correct expert PIN with Modbus register 8293 to reach this
access level. The Modbus master is able to modify the configuration of the device.
If an incorrect user PIN or an incorrect expert PIN is entered, or if the device does not receive
any request within 10 minutes, the device resets the access level to read only.
4.10

Modbus holding registers tables

4.10.1

Modbus holding registers tables (intro)

In the following the Modbus RTU holding registers available for SITRANS FST030 are
described.
Note
All Write parameters require password access.
Note
In case of error message "Check if the device is set to CT or SIL Operation mode", please
check for the following root causes:
- The device is set to CT mode
- The device is set to SIL mode
- The used Modbus register address is wrong
FCT030 Modbus (From firmware 4.0)
Function Manual, 06/2018, A5E39931813-AB
MODBUS commands
4.10 Modbus holding registers tables
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