Data Logger - Pce Instruments Ua964801 Betriebshandbuch

Loop Break Alarm (selection"L.B.A.")
Sensor alarm breakage: the relay activates in case of sensor breakage or sensor
out of range.
Remote control alarm (selection "remote Ctrl ")
The relay activates writing 1 on word modbus 1015 for the alarm 1 and on word
modbus 1016 for the alarm 2. Writing 0 the relay deactivates.

8.10 Data logger

UA964801 implements a basic Data logger function which can be enabled by par.
109 Data logger. Right after startup, the device starts storing the process data on
EEPROM memory, the sampling time has to be selected on par. 108 Graphic time.
Data can be read via Modbus starting from address 5001 (see next paragraph)
or via wireless reading the RFid memory directly from address 0x600 (1536). The
first data give a reference about the type of saved process values: refer to the
following table for the description of the saved data.
0x600 1536
0x601 1537
0x602 1538
0x603 1539
0x604 1540
1541
0x605
0x610 1552
0x611 1553
... ...
0xFFF 4095
The reading of value 0x8000 (-32768) indicates the end of the saved data:
subsequent read data are not valid.
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UA964801 - User manual
Data logger: firmware version
Data logger: sensor type
Data logger: decimal point
Data logger: measure unit
Data logger: sampling time in seconds
Data logger: end memory flag. 0 indicates
that memory still available. 1 indicates that the
memory is exhausted and the device resumed
saving data from address 5017
First saved value of analogue input
Second saved value of analogue input
...
Last saved value of analogue input