PLX51-DL-232
Preface
Data Logger
User Manual
ProSoft Technology, Inc.
Page 6 of 59
1 Preface
1.1 Introduction to the Data Logger
This manual describes the installation, configuration, operation, and diagnostics of the
PLX51-DL-232. The PLX51-DL-232 can read and store data from Logix Controllers, DF1
Serial Interfaces, or Modbus devices. The PLX51-DL-232 has the capacity to store over
16 million records in its solid-state non-volatile memory. Each stored record includes a
Date Time stamp with a 50 ms resolution, Tag Name, Data Type, and Value.
The PLX51-DL-232 can be used to log data at a remote site with limited communication
with its base. The PLX51-DL-232 is also used to store records on mobile equipment
such as trucks, drilling rigs, or snow plows. Once the equipment returns back to its base,
the historical data can be uploaded and transferred to a more permanent storage device.
The PLX51-DL-232 can also be configured to collect data which is only downloaded and
examined if a fault occurs, otherwise the data is overwritten.
Figure 1.1. – Non-Historian Option
1.2 Features
The PLX51-DL-232 provides temporary extensive on-board storage capability for storing
process tags. A total of 16,777,216 records can be stored in its non-volatile memory.
Each record consists of the following data:
Table 1.1. – Components of a Record
Parameter
Link
Date Time
UTC Time includes: Year, Month, Day, Hour, Minute, Second, Milliseconds.
Time has a resolution of 50 milliseconds.
Tag Name
As defined in Controller or in the PLX50 Configuration Utility for other sources
Data Type
BOOL, SINT, INT, DINT, or REAL
Value
Logix Tag / DF1 File / Modbus Register value
