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B-26
5 Buffer Memory (BFM)
5.3 Buffer Memory List (BFM)
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4AD/FX3UC-4AD (4-channel Analog Input)
BFM number Description Setting range Initial value Data type Reference
#126
*1
Upper/lower limit error status data (BFM #26)
automatic transfer-to data register specification
(Valid if b5 of BFM #22 is set to ON)
0 to 7999 K208 at delivery Decimal
Subsection
5.4.22
#127
*1
Abrupt change detection status data (BFM #27)
automatic transfer-to data register specification
(Valid if b6 of BFM #22 is set to ON)
0 to 7999 K209 at delivery Decimal
Subsection
5.4.23
#128
*1
Over-scale status data (BFM #28) automatic
transfer-to data register specification (Valid if b7
of BFM #22 is set to ON)
0 to 7999 K210 at delivery Decimal
Subsection
5.4.24
#129
*1
Error status data (BFM #29) automatic transfer-
to data register specification (Valid if b8 of BFM
#22 is set to ON)
0 to 7999 K211 at delivery Decimal
Subsection
5.4.25
#130 to #196
Not used - - - -
#197
Selection of cyclic data update function (function
for data history)
*2 H0000
Hexadeci-
mal
Subsection
5.4.26
#198
*1
Data history sampling time setting (Unit: ms) 0 to 30000 K15000 Decimal
Subsection
5.4.27
#199 Data history resetting/stoppage *3 H0000
Hexadeci-
mal
Subsection
5.4.28
#200 Channel-1 data history (initial value) - K0 Decimal
Subsection
5.4.29
~
~
~
~
Decimal
#1899 Channel-1 data history (1,700th value) - K0 Decimal
#1900 Channel-2 data history (initial value) - K0 Decimal
~
~
~
~
Decimal
#3599 Channel-2 data history (1,700th value) - K0 Decimal
#3600 Channel-3 data history (initial value) - K0 Decimal
~
~
~
~
Decimal
#5299 Channel-3 data history (1,700th value) - K0 Decimal
#5300 Channel-4 data history (initial value) - K0 Decimal
~
~
~
~
Decimal
#6999 Channel-4 data history (1,700th value) - K0 Decimal
#7000
to #
8063
System area - - - -
*1. If power failure occurs, the EEPROM will retain its data.
*2. Use b0 to b3.
*3. Use b0 to b3 and b8 to b11.