Mitsubishi Electronics MELSEC-F

B-26

5 Buffer Memory (BFM)

5.3 Buffer Memory List (BFM)

/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 Channe l-1 data history (1,700th value) - K0 Decimal

#1900 Channe l-2 data history (initial value) - K0 Decimal

Decimal

#3599 Channe l-2 data history (1,700th value) - K0 Decimal

#3600 Channe l-3 data history (initial value) - K0 Decimal

Decimal

#5299 Channe l-3 data history (1,700th value) - K0 Decimal

#5300 Channe l-4 data history (initial value) - K0 Decimal

Decimal

#6999 Channe l-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.