Log files, history files, and service files. Micro Motion 4200

Configuration and Use Manual

MMI-20048166

Log files, history files, and service files

April 2020

14 Log files, history files, and service files

14.1 Generate history log files

Display

ProLink III

Field Communicator

Not available

Device Tools → File Transfer → Download Historical Files

Not available

The transmitter automatically saves historical data of several types, including Smart Meter Verification test results, and totalizer values. To access the historical data, you can generate a log file, then view it on your PC.

Prerequisites

Due to power limitations, there is a situation where the 4200 cannot store all the historian data. The power limitation occurs when the milliamp current drops below 11 milliamps for more than 2 days. For example, if the milliamp output was configured for 4 mA = zero flow, and 20 mA = full scale, and the meter with the 4200 transmitter sat idle (zero flow) for more than two days, then it would not record new fast data (the old fast data would still be available). The slow data that is between 6 days old and 14 days old would “freeze”, i.e. not update. As long as there was some activity (flow > 11 mA) for at least one minute every two days, all data will be recorded and available for download.

If you want to generate a totalizer history log, you must have previously configured the transmitter to record totalizer history. Totalizer history is not saved automatically.

Procedure

1.

WARNING

If the transmitter is in a hazardous area, do not remove the housing cover while the transmitter is powered up. Failure to follow these instructions can cause an explosion resulting in injury or death.

If you are using the transmitter display, open the wiring compartment and insert the RS-485 adapter into the appropriate connections.

2. Select the type of log file that you want to generate.

3. If you selected historian data (process and diagnostic variables): a) Set the date and time for the first entry in the historian log file.

b) Set the number of days that the log file will include.

c) Select the record type.

Option

10 Second Raw Data

5 Min Average Data

Description

The current values of process and diagnostic variables, recorded at 10-second intervals.

The minimum and maximum values of the 1-second raw data over the last

5 minutes, plus the average and the standard deviation, recorded at 5-minute intervals.

The system provides an estimated file size or transfer time.

Configuration and Use Manual 153