XCell
TM
ATF System with C410:V4B Controller User Guide
113
Appendix 8: Audit Trail (If Equipped)
Note: Audit trail functionality is available on systems with HMI software version 4.36 or higher.
The C410v4B controller has the ability to be equipped with software that will enable audit trail recording
of HMI inputs. The audit trail will not record inputs from a supervisory control system and is intended
primarily for end-users who intend to use the XCell ATF in a standalone fashion. This functionality can
be enabled by purchasing the add-on C410-V4B-AT for a nominal fee alongside the purchase of a C410-
V4B-GMP controller. The audit trail file will be recorded on an SD card included in the HMI. This file has
a maximum allowable size of 64 MB. If this file reaches its maximum capacity, an alarm will display on
the HMI indicating that the maximum size has been reached and that audit trail recording will no longer
be saved unless space is freed up. Changes to the following inputs are recorded in the audit trail:
Command Word - Acknowledge Alarms
Command Word - ATF - Control Mode (Flow/Time)
Command Word - ATF - Slope Enable
Connected Bioreactor (INT number)
Pressure Flow Setpoint LPM
Pressure Flow Setpoint SEC
Exhaust Flow Setpoint LPM
Exhaust Flow Setpoint SEC
Flow Regulator Setpoint (bar)
Exhaust Regulator Setpoint (bar)
Flow Prop Valve Setpoint (%)
Exhaust Prop Valve Setpoint (%)
Batch name, 5 Char (bytes)
Flow Driving Force Offset for switching
Pressure Cycle Delay Time SP
Press_Cycle_Delay_Time_SP
Pressure Cycle Over Time SP
Pressure Cycle - PV Step Size - %
Exhaust Driving Force Offset for switching
Vacuum Cycle Delay Time SP
Vacuum Cycle Over Time SP
Exhaust Cycle - PV Step Size - %
P2 Alarm Limit Hi Hi Set Point
P2_Pressure_Alarm_Hi_Hi_SP
P2 Pressure Alarm Hi Hi - Timer SP
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