Overview Of Trace Function - Panasonic FP7 User Manual

Overview of Functions

1.2.2 Overview of Trace Function

 Overview
 The trace function is used to record arbitrary contacts and data information together with
time stamp information in the buffer memory in the CPU unit at any time.
 Logging data can be uploaded from the buffer memory to the tool software after the trace
operation, and can be displayed as a time chart. Traced data can be saved in SD memory
cards as csv format files.
 When the trace stop condition is set to bit device, the operation can be stopped after logging
data of the specified number of samplings after the stop condition has been met.
 Use the "Logging/Trace settings" menu of the tool software FPWIN GR7 to set the
conditions.
 The settings are downloaded to the PLC as a part of project data, and stored in the ROM1.
The setting data can be saved in SD memory cards and used.
 The logging operation is executed by any of those operations; (1) tool software FPWIN GR7,
(2) dedicated instructions or (3) Autostart by the setting.
 Specifications
Item
Max. number of records
Number of logs
Buffer memory
Trace start
Trace trigger condition
Trace stop condition
File format
(Note 1) Trace is executed when the condition is met at the end of scan.
(Note 2) When selecting "Bit" for the trace stop condition, logging data of the specified number of samples is possible
after the condition is met.
(Note 3) Unlike the file determination condition of the logging function, logging of data for the specified number of
samples starts when the bit device changes from OFF to ON.
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1-6
Specifications
1,000,000 records
Max. 500 devices (500 to 2,000 words) / 1 record
Max. 1M words
Can be divided into max. 16 (LOG0 to LOG15) areas
for use.
Capacity per division: 8k words to 1M words
Selectable from the tool software, instructions or
autostart.
Bit device ON (Note 1)
Cycle: By millisecond
Instruction: Executes an instruction with an arbitrary
condition and starts trace.
Bit device ON (Note 2) (Note 3)
Buffer memory full
Data is saved in csv format.
Remarks
Shared with the logging
function.
Arbitrary comments can be
given.
The upper limit of the
capacity on the file system
is 4 GB.