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Starting measurements
Idle
If the device is in
-mode and does not perform measurements, it can be re-started with the
command.
Command in Hex
Command in ASCII
As a confirmation, the device responds with a
The device then starts to initialize the measurement procedure and continuously sends measurement
packets with the measured gas concentrations and other measured values, depending on the product
type. These packets also contain M as a measurement response.
3.6 Status, error and failure response
Additionally the device also can send special packets with regard to errors (E) or failures (F). During the
measurement cycles it can transmit separate error or failure packets. Both do not contain any further data.
Error
-Packet:
Table 16 Error packet sent from device (Low power on the photodiode)
Response in Hex
Response in ASCII
Error
The
-packet contains status, warning, and error codes.
Failure
-Packet:
Table 17 Failure packet sent from device (Error checksum not correct)
Response in Hex
Response in ASCII
Failure
The
-packet contains error codes that require manufacturer-assisted maintenance of the device.
While working with the Axetris Customer Frontend, the device sends additional status information
packets ( {D...} ). The D-packets are for internal use only and can only be monitored while working with
the Axetris Customer Frontend (they can be ignored by the customer in standard device operation).
When quitting the Axetris Customer Frontend to work with the LGD module Communication Protocol,
the device stops sending D-packets.
Axetris AG
LGD Compact Operating & Integration Instructions; Rev. D
7B 4D 08 00 01 EA
{ M . . . .
Measurement
-packet without any data.
7B 45 08 00 CE F4
{ E . . . .
7B 46 08 00 C1 0F
{ F . . . .
Measurement-
45
7D
E
}
76
7D
5
}
67
7D
g
}
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