Product data

Data Logging

9.1 Overview

Data logging is used to gather system relevant data and store it for later retrieval. Several Morn-

ingstarproductswillperformbasicdataloggingtoonboardmemory.Pleaserefertospecicprod-

uct documentation for information on the internal logging performed by these units.

For more advanced logging, (i.e. specifying what data values to be logged, and at what interval)

the use of either MSView

, a custom designed MODBUS

application, or a 3rd party data ac-

quisition service is necessary.

9.2 MSView

The MSView

software has the capability of performing high-resolution data logging for any

numberofvariablesavailableinthesystem.Loggingintervalsarecustomdenedbytheuser

andcanbespecieddowntoaminimumofonesecond(meaningdataiscollectedatamaxi-

mum rate of once per second).

While logging, MSView

continuouslysavestheloglein.csv(commaseparatedvalues)for-

mat. This very common format is compatible with nearly all spreadsheet and database programs.

If you are using a controller with the capability of logging to onboard memory, MSView

will ex-

tract this data from the controller every time you establish a connection to it.

9.3 MODBUS

Application

Morningstar controllers use the MODBUS

protocol to communicate with 3rd party hardware,

such as PCs and PLCs. A programming savvy user can create applications which will talk to

Morningstar controllers using MODBUS

and retrieve system information from the unit.

Morningstar products capable of communications with a 3

party device have corresponding

MODBUS

specicationspostedontheMorningstarwebsite.Thesespecicationswillprovidea

brief overview of the protocol, the functions supported, and data register locations for the model

you are using.

Data Logging9.0