iOKE868 LoRaWAN® /
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User Manual Version: 1.0
Page 8 of 12
Reader Functions
The iO881A includes a smart meter reader firmware which provides the following functions for meter reading via optical infrared interface:
Direct Output Mode
In this mode of operation the incoming meter data on the infrared interface is simply repeated on the wired local serial interface with
a baudrate of 115200 bps (8/N/1). This mode can be used to forward the original meter data stream to a PC-Tool for further
processing. Note: while Direct Output Mode is selected the LoRaWAN Radio Stack and all further reader functionalities are
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disabled.
Pairing Mode
This mode allows to pair the iO881A with the current connected meter. The pairing is done by reading the unique Meter ID which will
afterwards be stored in the internal non-volatile memory. After successful pairing the reader firmware module will only accept meter
data which include the saved Meter ID. The pairing state can be reseted by command at any time.
OBIS-ID Scan Mode
Meter data is always transmitted by means of files which consist of multiple data records. Every data record includes a unique
OBIS-ID which identifies the kind of measurement value within this record. The OBIS-ID Scan Mode can be activated to read and
forward only the published OBIS-IDs of the connected meter. The captured OBIS-IDs will be sent as a list via wired local serial
interface to the connected PC. This list of OBIS-IDs is helpful to configure the supported OBIS-ID Filter (see below).
OBIS-ID Filter Configuration
In order to focus on specific meter data record of interest, it is possible to configure the so called OBIS-ID Filter. Up to 32 individual
filter items can be activated with different OBIS-IDs.
Single Capture Mode
The Single Capture Mode performs a single meter readout. Thus after detection of a meter data end of file or an error condition the
reader module and infrared interface will be deactivated. The readout results will finally be forwarded via local serial interface or
LoRaWAN depending on the initiating command source (e.g. PC-Tool, Calendar Event) and iO881A configuration. While in
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Single
the OBIS-ID Filter is used.
Capture Mode
Continuous Capture Mode
In contrast to the
the reader and interface will remain active after end of file or error detection. The readout
Single Capture Mode
results will be forwarded as soon as possible. The Continuous Capture Mode can be deactivated by a Stop command, or by
activating the Single Capture Mode. Again the OBIS-ID Filter will be used to focus on the wanted specific data.
