Mitsubishi Electric FX3G User Manual page 263

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4DA (4-channel Analog Output)
3U
4. Cautions regarding table output
• When BFM#99 (data table transfer command) is not H0000, the table output function cannot be started.
• When an error occurs during transfer of data table, start the table output after setting the correct data table.
• While the table output completion flag BFM#89 is ON, output of a new table cannot be started.
• The table output function is valid only while the PLC is in RUN mode.
• While even a single channel is outputting data table (BFM#80 is not H0000), it is prohibited to change
BFM#0, #5, #9 to #17, #19, #20, #32 to #35, #38, #41 to 48, #50 to #54 and #60 to #63.
• The pattern can be changed during output as shown below. (The change is invalid while the table output
completion flag BFM#89 is ON.)
Output
value
Table output start
5. Check the table output completion flag. (BFM#89, initial value: H0000)
The value in BFM#89 indicates whether the table output from each channel has been completed.
After data is output at the final point in the last cycle of a pattern, the table output completion flag is turned on.
When the table output (BFM#80) is set to be stopped, the table output completion flag is turned off.
H
ch4
ch3
Value for each
channel
0
1
PLC User's Manual - Analog Control Edition
Pattern 5
Pattern 1
Change from output pattern
1 to output pattern 5
ch1
ch2
Table output completion flag
Table output uncompleted
Table output completed
6 Table Output Function
6.4 Procedures for executing table output function
The data output in pattern 1 is
ignored, and data is output at
point 1 in output pattern 5.
Time
A
B
C
D
E
F
G
H
I
J
E-49