Siemens SITRANS LR500 Series - Page 91

engineering system, and locally, using device HMI. When a simulation is active, it is
r
epresented by the fault code "Cb" and corresponding symbol appearing on the device display.
Note
Simulation enabled
•
Simulation fault code "Cb" shows on local display, even if other faults are present.
• Simulation fault code and corresponding symbol are shown with a cyan background in the
EDD.
When Simulation is enabled, some of the device's con󹪝gur
ed functionality will respond to the
simulated value, including:
• Limit monitoring: Any warnings and process alarms that have been con󹪝gured, activate
based on the simulated value.
• Logging: Log 󹪝les re󹪞ect the simulated values.
• Milliamp output: The loop current output also tracks the corresponding process value it is
being con󹪝gured to read.
The following function will not respond to the simulated value when simulation is enabled:
• Fault conditions: The device never enters the fail-safe state when in simulation mode. Faults
that normally cause a fail-safe condition (such as a broken cable) may still occur, but a fail-
safe condition is not reported on the device during simulation.
In general, to simulate a process value via PDM:
1. Go to the Device menu in PDM, and choose "Simulation > Process values". (For parameter
details, see SIMATIC PDM (Page207)).
2. Set a simulation mode.
3. Set simulation value, and any parameters for a ramp simulation.
4. Start simulation (click "Transfer" button).
(The status of the simulation can be monitored in the PDM menu "View > Process values".)
To stop simulation at any time, change parameter "Simulation mode" to "Disabled".
Simulating a 󹪝xed process value
1. Set parameter "Simulation mode" to "Enabled" to simulate a 󹪝xed process value.
2. Set parameter "Simulation value" to the desired 󹪝xed value for the simulation.
3. Set parameter "PV status" to the status to simulate.
4. Click "Transfer" button to start the simulation.
5. Set parameter "Simulation mode" to "Disabled" to stop the simulation.
Simulating a changing process value
1. Set parameter "Simulation mode" to "Ramp" to simulate a changing process value.
2. Set parameter "Simulation value" to the desired starting value for the simulation.
3. Set parameter "PV status" to the status to simulate.
Operating
8.5Simulation
SITRANS LR500 series with mA/HART
Operating Instructions, 03/2024, A5E51099898-AA 91