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B-24
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)
*1. If power failure occurs, the EEPROM will retain its data.
*2. Use b0 to b7.
*3. The offset and gain values should satisfy the following conditions: Gain value - Offset value
≥
1000
*4. The offset and gain values should satisfy the following conditions: 30000
≥
Gain value - Offset value
≥
3000
BFM number Description Setting range Initial value Data type Reference
#22
*1
Convenient function setting:
Convenient functions:Automatic send
function, data addition, upper/lower limit
detection, abrupt change detection, peak
value holding
*2 H0000 at delivery
Hexadeci-
mal
Subsection
5.4.8
#23 to #25 Not used - - - -
#26
Upper/lower limit value error status (Valid if b1
of BFM #22 is set to ON)
- H0000
Hexadeci-
mal
Subsection
5.4.9
#27
Abrupt change detection status (Valid if b2 of
BFM #22 is set to ON)
- H0000
Hexadeci-
mal
Subsection
5.4.10
#28 Over-scale status - H0000
Hexadeci-
mal
Subsection
5.4.11
#29 Error status - H0000
Hexadeci-
mal
Subsection
5.4.12
#30 Model code K2080 - K2080 Decimal
Subsection
5.4.13
#31 to #40 Not used - - - -
#41
*1
Channel-1 offset data (Unit: mV or
μ
A)
BFM #21
will be
used for
writing
data.
• Voltage input:
-10000 to
+9000
*3
• Current input:
-20000 to
+17000
*4
K0 at delivery Decimal
Subsection
5.4.14
#42
*1
Channel-2 offset data (Unit: mV or
μ
A)
K0 at delivery Decimal
#43
*1
Channel-3 offset data (Unit: mV or
μ
A)
K0 at delivery Decimal
#44
*1
Channel-4 offset data (Unit: mV or
μ
A)
K0 at delivery Decimal
#45 to #50 Not used - - - -
#51
*1
Channel-1 gain data (Unit: mV or
μ
A)
BFM #21
will be
used for
writing
data.
• Voltage input:
-9000 to
+10000
*3
• Current input:
-17000 to
+30000
*4
K5000 at delivery Decimal
Subsection
5.4.14
#52
*1
Channel-2 gain data (Unit: mV or
μ
A)
K5000 at delivery Decimal
#53
*1
Channel-3 gain data (Unit: mV or
μ
A)
K5000 at delivery Decimal
#54
*1
Channel-4 gain data (Unit: mV or
μ
A)
K5000 at delivery Decimal
#55 to #60 Not used - - - -
#61
Channel-1 addition data (Valid if b0 of BFM #22
is set to ON)
-16000 to +16000 K0 Decimal
Subsection
5.4.15
#62
Channel-2 addition data (Valid if b0 of BFM #22
is set to ON)
-16000 to +16000 K0 Decimal
#63
Channel-3 addition data (Valid if b0 of BFM #22
is set to ON)
-16000 to +16000 K0 Decimal
#64
Channel-4 addition data (Valid if b0 of BFM #22
is set to ON)
-16000 to +16000 K0 Decimal
#65 to #70 Not used - - - -
#71
Channel-1 lower limit value error setting (Valid if
b1 of BFM #22 is set to ON)
From minimum
digital value in
input range to
upper limit value
error setting value
Minimum digital
value in input
range
Decimal
Subsection
5.4.16
#72
Channel-2 lower limit value error setting (Valid if
b1 of BFM #22 is set to ON)
Minimum digital
value in input
range
Decimal
#73
Channel-3 lower limit value error setting (Valid if
b1 of BFM #22 is set to ON)
Minimum digital
value in input
range
Decimal
#74
Channel-4 lower limit value error setting (Valid if
b1 of BFM #22 is set to ON)
Minimum digital
value in input
range
Decimal
#75 to #80 Not used - - - -