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Key Sequence
00000
00000
FUN (??)
00000IOTBL
?Ć?U=
00000IOTBL CANC
????
00000IOTBL CANC
9713
00000IOTBL CANC
OK
00000IOTBL WRIT
????
4-6-9 SYSMAC NET Link Table Transfer
The SYSMAC NET Link Table Transfer operation transfers a copy of the SYS-
MAC NET Link Data Link table to the UM Area program memory. This allows the
user program and SYSMAC NET Link table to be written into EPROM together.
The data link table must be created with the SYSMAC Support Software and
transferred to the PC before copying the table to program memory.
The data link table is stored in RAM when it is transferred to the PC from the
SYSMAC Support Software, so the table will be lost if the CPU Unit’s backup
battery dies. To prevent this loss, we recommend converting the program (with
the data link table) to EPROM or storing the program in an EEPROM Memory
Cassette.
Note When power is applied to a PC which has a copy of a SYSMAC NET Link table
stored in its program memory, the SYSMAC NET Link table of the CPU Unit will
be overwritten. Changes made in the SYSMAC NET Link table do not affect the
copy of the SYSMAC NET Link table in program memory; SYSMAC NET Link
Table Transfer must be repeated to change the copy in program memory.
The SYSMAC NET Link Table Transfer operation will not work if:
• The Memory Unit is not RAM or EEPROM, or the write protect switch is not set
to write.
• There isn’t an END(01) instruction.
• The contents of program memory exceeds 14.7 KW. The program capacity is
reduced when memory is allocated to expansion DM or the I/O comment area.
About 0.5 KW of program memory beyond the END(01) instruction are needed
to store the data link table.
SYSMAC NET Link table transfer can only be done in PROGRAM mode.
Example
Preparation for Operation Section 4-6