A927ZET Technical Information Manual
14
Storing operating Modes
In Continuous and Event mode, the Tag continuously measures the sensor value. When the sensor value must be
stored, A927ZET can be programmed to work in four different operating modes:
Sensor Data only.
Tag stores only the sensor data (Control register bit D = 1, bit TL =0).
Time-stamped Data.
Tag stores the sensor data and the corresponding time-stamp (Control register bit D= 1, bit
TL=1).
Time-stamp only.
Tag stores only the time-stamps data (Control register bit D = 0, bit TL =1).
No storage.
(Control register bit D = 0, bit TL =0).
Sensor Data
Time-stamp
D
Data logging activated
TL
Time-stamp activated
stored
stored
1
1
stored
not stored
1
0
not stored
stored
0
1
not stored
not stored
0
0
Tab. 2.2: Storing Operating Modes
Data Logging Area Allocation
The following figure shows the data allocation used in the different storing modes described above:
1A0
h
Sensor Data
n+3
Sensor Data Only
190
h
Sensor Data
n+2
180
h
Sensor Data
n+1
170
h
Sensor Data
n
1E0
h
Sensor Data
n+1
1D0
h
Time [15:00]
n+1
1C0
h
Time [31:16]
n+1
Time-stamped Data
1B0
h
0000h
1A0
h
Sensor Data
n
190
h
Time [15:00]
n
180
h
Time [31:16]
n
170
h
0000h
1A0
h
Time [15:00]
n+1
Time-stamp only
190
h
Time [31:16]
n+1
180
h
Time [15:00]
n
170
h
Time [31:16]
n
Tab. 2.3: Data Logging Area Allocation in the different storing modes
