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Diagnostics Optimization CT MODBUS RTU Technical Data
E300 Design Guide                                        431
Issue Number: 1           
Auto (2):
After the scope system is reset Data Logger Data Not Ready (Y12) is set to 1 and the scope begins to acquire data. Once the buffer is full Data 
Logger Data Not Ready (Y12) is set to 0 and the scope continues to acquire data. Data Logger Arm (Y11) has no effect on data acquisition. Provided 
Data Logger Data Not Ready (Y12) = 0 and Data Logger Saving Data (Y13) = 0 it is possible to read the data from the scope buffer as a scope file. 
Data acquisition is stopped when the file transfer begins. When the file transfer is complete, data acquisition begins again and Data Logger Data Not 
Ready (Y12) is set to 1 for a period that is long enough to fill the scope buffer with new data.
See Data Logging Mode (Y10).
See Data Logging Mode (Y10).
See Data Logging Mode (Y10).
Data Logger Sample Time (Y14) defines the sample rate of the scope function for all traces in 250 μs units (i.e. if Data Logger Sample Time (Y14) = 
4, the sample time is 1 ms).
Data Logger Trigger Delay (Y15) defines how much data is stored before and after the scope is triggered. If Data Logger Trigger Delay (Y15) = 0 % 
then no data is stored before the trigger and all the data is after the trigger. If Data Logger Trigger Delay (Y15) = 100 % then no data is stored after the 
trigger, but all the data is before the trigger.
Y11 Data Logger Arm
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default 0 Units
Type 1 Bit Volatile Update Rate 250 μs
Display Format Standard Decimal Places 0
Coding RW, NC
Y12 Data Logger Data Not Ready 
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default Units
Type 1 Bit Volatile Update Rate 250 μs write
Display Format Standard Decimal Places 0
Coding RO, ND, NC, PT
Y13 Data Logger Saving Data
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default Units
Type 1 Bit Volatile Update Rate Background write
Display Format Standard Decimal Places 0
Coding RO, ND, NC, PT
Y14 Data Logger Sample Time
Mode Open-Loop, RFC-A, RFC-S
Minimum 1 Maximum 200
Default 1 Units
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW, BU
Y15 Data Logger Trigger Delay
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 100
Default 0 Units %
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW