User Guide

FS-8700-123_MetOne Particle Counter by Hach Ultra Analytics Manual Page 24 of 26
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Appendix A.2. Driver Exposed Operating and Error Statistics
In addition to the normal operating stats the driver can expose additional operating/error
stats in a Data Array which can be monitored by a remote device.
A special Data Array name is required. The driver recognizes the Data Array by its name
which must be "met1-stats"
The following example shows how this Data Array can be configured. This section of text
can be copied directly into the CSV file.
Data_Arrays
Data_Array_Name, Data_Format, Data_Array_Length
Met1-stats, UINT32, 1000
The driver stores the following data. The location in the data array is obtained by
multiplying the port number by 100 and then using the location offset indicated in the table
below.
Offset + x
Where x = port_number*100
Physical Port 1 = Port Number 2
Physical Port 2 = Port number 1
Offset Description
1 Stores the select code of the most recently selected device - This is done by the Server
side of the driver
2 Stores the select code of the most recently selected sub-device/port - This is done by the
Server side of the driver
3 Stores the operating command code of the most recently commanded device/sub-
device/port - This is done by the Server side of the driver
4 When the driver stores current record counts by label then the driver stores the 1st
character of the label here. This gets overwritten each time new label data is stored.
5 See previous. 2nd Character.
6 See previous. 3rd Character.
7 See previous. 4th Character.
8 Increments by 1 each time driver stores using the label method.
9 Increments by 1 each time internal diagnostic 1 is triggered. Should be zero in operational
systems.
10 Increments by 1 each time internal diagnostic 4 is triggered. Should be zero in operational
systems.
11 Increments by 1 each time internal diagnostic 5 is triggered. Should be zero in operational
systems.
12 Increments by 1 each time internal diagnostic 6 is triggered. Should be zero in operational
systems.
13 Increments by 1 each time internal diagnostic 7 is triggered. Should be zero in operational
systems.
14 Increments by 1 each time there is no response to a select message
15 Increments by 1 each time there is no response to a sub-device/port select message
16 Increments by 1 each time there is no response to a non select message
17 Increments by 1 each time a response has a checksum error. Only current record poll
responses contain checksums.