Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
E-35
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
A
Comm
on I
te
te
ms
B
FX
3U
-4AD
FX
3UC
-4
A
D
C
FX
3U
-4A
D
D
-A
D
P
D
FX
3G
-2A
D
D
-BD
E
FX
3U
-4DA
F
FX
3U
-4D
A
A
-AD
P
P
G
FX
3G
-1D
A
A
-BD
H
FX
3U
-3
A-
ADP
I
FX
3U
-4
A
D
-P
T
-
A
D
P
J
FX
3U
-4A
D
D
-P
TW
-
A
A
D
P
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3U
-4DA (4-channel Analog Output)
5.4.19 BFM #61: Error status data automatic transfer-to data register specification
Setting range: 0 to 7999
Initial value: K200
Numeric data type: Decimal (K)
Use this function to automatically transfer the error status data (BFM #29) to the data register specified in
BFM #61.
When an error is detected, data will be automatically transferred from FX
BFM #61.
When an error is detected, data will be automatically transferred from FX
3U
-4DA to the PLC. For this reason,
the PLC does not need a program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the error status (BFM #29), refer to Subsection 5.4.12.
1. If "BFM #61 = K200 (initial value)"
2. Cautions regarding error status automatic transfer function setting
• If a data is already specified for the other automatic transfer functions, do not specify the same data
register.
• This function is valid by turning on b0 of the status automatic transfer function setting (BFM #60).
• When a value out of the above setting range is set, b9 of the error status BFM #29 is turned on.
• The data set in BFM #61 will be retained in the EEPROM.
• When a value out of the above setting range is set, b9 of the error status BFM #29 is turned on.
• The data set in BFM #61 will be retained in the EEPROM.
3. Cautions regarding EEPROM writing
If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX
EEPROM of FX
3U
-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
frequently write data in the above buffer memories (BFM).
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
frequently write data in the above buffer memories (BFM).
Specified data
register
Description
D200
Value of error status (BFM #29)