Bfm#63: Specification Of Data Register For Automatic Transfer At Disconnection Detection - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4DA (4-channel Analog Output)
3U
5.4.21 BFM#63: Specification of data register for automatic transfer at disconnection
detection
Use this function to automatically transfer the disconnection detection status data (BFM#28) to the data
register specified in BFM#63.
Only when wire-break is detected, data will be automatically transferred from FX
reason, the PLC does not need the program for reading data, and the scan time of the PLC can be shortened.
1. If "BFM#63 = K202 (initial value)"
Specified data
register
D202
2. Cautions regarding disconnection detection 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 b2 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#63 will be retained in the EEPROM.
3. 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).
5.4.22 BFM#80 to #3098: Table output function
Related BFM:
BFM#80 (start/stop command of table output function)
BFM#81 to #84 (output pattern setting of channels)
BFM#85 to #88 (output execution cycle number of channels)
BFM#89 (completion flag of table output function)
BFM#90 (table output error code)
BFM#91 (table output error source number)
BFM#98 (data table head device number)
BFM#99 (data table transfer command)
BFM#100 to #398, •••, #2800 to #3098 (data table in patterns)
Table output function:
Sets predetermined output patterns as data table, and outputs analog signals according to the data table.
PLC User's Manual - Analog Control Edition
→ For a detailed description of the disconnection detection status (BFM#28),
Description
Value of disconnection detection status (BFM#28)
-4DA.
3U
→ For a detailed description of the table output function, refer to Chapter 6.
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
Setting range: 0 to 7999
Initial value: K202
Numeric data type: Decimal (K)
-4DA to the PLC. For this
3U
refer to Subsection 5.4.9.
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