Omron CJ1W-NC271 - 12-2009, Operation Manual

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Transferring PCU Parameters
Section 5-2
Timing Chart for Writing
Data to the PCU Data can be written to the PCU during axis operation if the Unit Busy Flag is
not ON (i.e., except when the PCU is initializing or reading/writing Memory
Card backup data). WRITE DATA, READ DATA, and SAVE DATA cannot be
executed at the same time.
When writing data to the PCU is completed, the Data Transferring Flag (word
n+15, bit 14) turns OFF. When an error occurs during data transfer, the Unit
Error Flag (word n+15, bit 12) turns ON, and the corresponding error code is
input in word n+21 of the Common Operating Memory Area. Check the error
code and perform appropriate troubleshooting.
Note If an error occurs while writing data (multistart error, write transfer error, Com-
mon Parameter check error during data transfer, or Axis Parameter check
error during data transfer), the transferred set value will be destroyed, and the
parameter will return to the set value before transferring data. WRITE DATA is
still executed if an error occurs, but even if the data is transferred normally, the
error that occurred will not be cleared. Make sure to execute ERROR RESET
01
D01000
D01001
D01002
D01003
D01004
D01005
D01011
000C hex
0082 hex
03E8 hex
1838 hex
00B0 hex
0064 hex
00B0 hex
01F4 hex
0040 hex
0000
0000
1838 hex
1839 hex
183A hex
183B hex
183C hex
183D hex
1843 hex
00B0 hex
0064 hex
00B0 hex
01F4 hex
0040 hex
0000
0000
14
: :
: :
Common Operating Memory Area
n = CIO 1500 + (Unit No.
×
25)
CPU Unit
Word n
Word n+15
Word n+9
Word n+8
Word n+7
Word n+6 No. of write words (12 words)
Write source area (D01000)
Write destination address (1838 hex)
Data Transferring Flag (ON while executing transfer)
PCU
DM Area
Data Transfer Example
The data for the number of
write words starting from
the word of the write source
area specified in the
Common Operating
Memory Area is transferred
to the write destination
address in the PCU.
Internal address
Data written.
03E8 hex
1838 hex
0082 hex
000C hex Number of write words (Word n+6)
Write source area (Word n+7)
Write source word (Word n+8)
Write destination address (Word n+9)
WRITE DATA Bit (Word n, bit 01)
Data Transferring Flag (Word n+15, bit 14)
Unit Busy Flag (Word n+16, bit 14)
Data writing completed
The Data Transferring Flag turns ON for at
least one cycle time when the command to
transfer data is received from the PCU.
The status of the Unit Busy Flag does not
change when data is being transferred.