Procedures For Transferring Data Table To Buffer Memory - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -4DA (4-channel Analog Output)
3U
6.3

Procedures for transferring data table to buffer memory

The data table prepared in the data registers (D1000 to D7999) in the PLC or the expansion registers (R0 to
R32767) are transferred to the buffer memory in FX
The transfer procedures are shown below.
1. Specify the head device number of the data table to be transferred. (BFM#98, initial value:
K1000)
Specify the head device number of the data table in BFM#98.
The setting range is K1000 to K7994 for the data registers (D1000 to D7999) (because at least six points are
occupied) or K0 to K32762 for the expansion registers (R0 to R32767) (because at least six points are
occupied).
Example) When the data table is set starting from D1000, set K1000 in BFM#98.
When a value out of the setting range is set, the error code K21 is stored in the table output error code
BFM#90, the number of the buffer memory, K98, that has developed the table output error is stored in
BFM#91, and b8 of the error status BFM#29 is turned on.
2. Start transferring the data table. (BFM#99, initial value: H0000)
Transfer the data table from the PLC to the FX
H
*1
Invalid
*1
Invalid
• Data table transfer command
Set value
Other than above values
• Register type
Set value
Other than above values
*1. When a value out of the setting range is set, the error code is stored in the table output error code
BFM#90, the number of the buffer memory, K99, that has developed the table output error is stored in
BFM#91, and b8 of the error status BFM#29 is turned on.
Example) When K1000 is written in the head device number of data table (BFM#98) and H0001 is written in
the data table transfer command (BFM#99), the data table will be transferred from the data
register D1000.
Caution:
When connected and used with the FX5U or FX5UC CPU module, do not use the data table transfer
command.
Directly write to the FX
E-44
PLC User's Manual - Analog Control Edition
3UC
Data table transfer command
Register type
0 No processing
1 Execution of transfer of data table
*1
Invalid
Transfer of data table from data registers
0
(D1000 to 7999)
Transfer of data table from expansion registers
1
(R0 to 32767)
*1
Invalid
-4DA by the PLC program (TO instruction, etc.)
3U
-4DA.
3U
-4DA using the data table transfer command (BFM#99).
3U
Transfer command
Register type
6 Table Output Function
6.3 Procedures for transferring data table to buffer memory