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FX2N-8AD Analog input block Buffer Memory (BFM) 8
8-40
8.2.24 BFM #199: Resets or stops data history
The data history reset function is assigned to the lower eight bits of BFM #199. The data
history stop function is assigned to the upper eight bits of BFM #199.
Each function is valid only in channels for which the number of times of averaging (BFM #2 to
#9) is set to "1".
Data history reset function
This function clears the sampled data history in each channel.
The channel No. to be reset is assigned to each of the lower eight bits of BFM #199.
When a bit is set to ON, the data history (all contents from the 1st value to the 400th value) of
the assigned channel is cleared. (You can set two or more bits to ON at a time.)
When the clear operation is completed, each bit returns automatically to OFF.
Data history stop function
This function stops temporarily sampling of the data history in the unit of channel.
The channel No. to be stopped temporarily is assigned to each of the upper eight bits of BFM
#199.
When a bit is set to ON, sampling of the data history of the assigned channel is stopped
temporarily. (You can set two or more bits to ON at a time.)
When a bit is set to OFF, sampling of the data history of the assigned channel restarts.
Table 8.14: Assignment of lower eight bits
Bit No. b7 b6 b5 b4 b3 b2 b1 b0
Channel No. CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1
Table 8.15: Assignment of upper eight bits
Bit No. b15 b14 b13 b12 b11 b10 b9 b8
Channel No. CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1