Mitsubishi MELSEC-F FX3U Series User Manual

B-46
5 Buffer Memory (BFM)
5.4 Details of Buffer Memories
FX 3U /FX 3UC Series PLC User's Manual - Analog Control Edition
FX3UC-4AD (4-channel Analog Input)
5.4.28 BFM #199: Data history resetting/stoppage
Initial value: H0000
Numeric data type: Hexadecimal (H)
The data history resetting function or data history stoppage function is assigned to each bit of BFM #199.
1. Data history resetting function (b0 to b3)
The sampled history data can be reset for each channel.
Turn on a bit to reset all the history data (1st to 1,700th) of the corresponding channel. (Note that two or more
bits can be turned on at a time.)
At the completion of data resetting, the turned on bit will automatically be turned off.
2. Data history stoppage function (b8 to b11)
Data sampling can be temporarily stopped for each channel.
Turn on a bit to temporarily stop sampling of history data for the corresponding channel. (Note that two or
more bits can be turned on at a time.)
Turn off the bit to restart sampling of history data.
3. Function assignment to each bit of BFM #199
4. Caution regarding data history resetting
• When a bit is turned on, the corresponding data history will be reset.
Bit No. Channel number Description
b0 ch1
Data history resetting function
b1 ch2
b2 ch3
b3 ch4
b4 to b7 Not used.
b8 ch1
Data history stoppage function
b9 ch2
b10 ch3
b11 ch4
b12 to b15 Not used.

Mitsubishi MELSEC-F FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC-F FX3U Series
Category	Controller
Language	English