A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS Page 121
mmmmm
General Operation
The following functions will not respond to the simulated value when in simulation mode:
• Fault Conditions - The LUT400 will never enter the Fail-safe state when in simulation
mode. For further details see
Fail-safe and Simulation
on page 122.
• Backup Level Override - If a Backup Level Override switch is configured and it lies
within the simulated Level range, it will not be simulated. To simulate a Backup Level
Override, simulate the discrete input. See
Simulating Discrete Inputs
on page 123.
• Totalizing of OCM Flow - Totalizing of flow (OCM applications) does not occur during
simulation. The OCM Daily Totalizer (
2.16.1.
) and Running Totalizer (
2.16.2.
) will not
increase in value during simulation.
• Totalizing of Pumped Volume - Totalizing of pumped volume does not occur during
simulation if
3.4.3. Pump Activations
is set to Disabled. If pumps are set to run during
simulation, the material pumped will be totalized (
2.7.3.1. Running Totalizer
).
• External Sampler - The external sampler, if configured, will click at its timeout
interval when in simulation mode (see
2.11.4.3. Interval
).
Pump relay behaviour during simulation
The
3.4.3. Pump Activations
parameter allows you to choose how the physical relays that
are assigned to pumps will behave when in simulation mode.
This parameter has two possible values:
Disabled: Pump relays are not activated in simulation (default value)
Enabled: Pump relays are activated in simulation
If
3.4.3. Pump Activations
is Disabled, only the LCD indicators are affected (the
corresponding relay icons will turn ON, but the relays will not energize). If
3.4.3. Pump
Activations
is Enabled, the relay icons will turn ON, and the relays will energize.
WARNING: Select Enabled only when there is no possibility of the pumps
being damaged during simulation, or if the pumps have been locally disabled
through some other means.
Notes:
• If the pump relays are configured to physically activate in simulation mode, then any
time activated will be recorded in the pump Run Time parameter (see
Pump Records
on page 203.).
• If a pump start delay has been programmed for the device (
2.7.2.4.1. Delay Between
Starts
), it will be respected in Simulation mode.
To Next Page
Loading...
