Bfm#60: Status Automatic Transfer Function Setting - Mitsubishi Electric MELSEC-FX3S Series Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -4DA (4-channel Analog Output)
3U
3. Cautions regarding use of the output corrective function by load resistance
• While changing the settings, the output is stopped, and H0000 is automatically written in the output status
(BFM#6).
At the completion of writing, the output status (BFM#6) will automatically change to H1111, and the output
will be restarted.
• This function is valid only in the voltage output mode (mode 0 or 1).
• The corrective function by load resistance is valid only at a load resistance from 1 k to 30 kΩ.
• If a setting is out of the upper setting range, b7 of the error status BFM#29 is turned on.
• When not using this function, the output characteristics at a load resistance of 30 kΩ are applied.
4. Cautions regarding EEPROM writing
If data is set in BFM#0, #5, #10 to #17, #19, #32 to #35, #50 to #54 or #60 to #63, the data will be written in
the EEPROM of FX
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).

5.4.18 BFM#60: Status automatic transfer function setting

When the bits, b0 to b2, of BFM#60 are turned on, the assigned functions (see the table below) are valid.
When the bits are turned off, the functions are invalid.
1. Assignment to each bit of BFM#60
Bit No.
When the value of the error status (BFM#29) changes,
b0 the status value is transferred to the data register
specified by BFM#61.
When the value of the upper/lower limit function status
b1 (BFM#39) changes, the status value is transferred to the
data register specified by BFM#62.
When the value of the disconnection detection status
b2 (BFM#28) changes, the status value is transferred to the
data register specified by BFM#63.
b3 to b15 Invalid (setting values unchanged)
2. Cautions regarding the status automatic transfer function
• While changing the settings, the output is stopped, and H0000 is automatically written in the output status
(BFM#6).
At the completion of writing, the output status (BFM#6) will automatically change to H1111, and the output
will be restarted.
• When connected and used with the FX5U or FX5UC CPU module, do not use the status data automatic
transfer function.
3. Cautions regarding EEPROM writing
If data is written to BFM#0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will also be written
in the EEPROM of FX
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. When creating a program, therefore, do not
frequently write data in the above buffer memories (BFM).
E-34
PLC User's Manual - Analog Control Edition
3UC
-4DA.
3U
Description
-4DA.
3U
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
Initial value: H0000
Numeric data type: Hexadecimal (H)
Reference
Subsection 5.4.10
Subsection 5.4.19
Subsection 5.4.14
Subsection 5.4.20
Subsection 5.4.9
Subsection 5.4.21
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