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1105
File Memory Instructions
Section 3-26
Flags
The following table shows relevant flags in the Auxiliary Area.
Name
Label
Operation
Error Flag
ER
ON if the file memory specified in C does not exist.
ON if the settings in C are not within the specified range.
ON if the filename specified in S2 does not satisfy the
required conditions.
ON if the File Memory Operation Flag was ON.
ON if a constant was not specified for C (only for CS-
series CS1 CPU Units prior to V1
@
).
ON if data specified for S1 is out of range (all CPU Units
except for CS-series CS1 CPU Units prior to V1
@
).
ON if an illegal area is specified for D.
With the CS1D CPU Units: ON if the active and standby
CPU Units could not be synchronized.
OFF in all other cases.
Name
Address
Operation
Memory Card Type
A34300 to
A34302
Contains a binary number indicating the type
of Memory Card, if any, that is installed.
(0: None, 4: Flash ROM)
Memory Card Format
Error Flag
A34307
ON when the Memory Card is not formatted or
a formatting error has occurred.
File Read Error Flag
A34310
ON when a file could not be read because its
data was corrupted or if it contains the wrong
data type.
File Missing Flag
A34311
ON when data could not be read because the
specified file does not exist.
File Memory Operation
Flag
A34313
ON for any of the following:
The CPU Unit has sent a FINS command to
itself using CMND(490).
FREAD(700) or FWRIT(701) are being exe-
cuted.
The program is being overwritten using a con-
trol bit in memory.
A simple backup operation is being performed.
Accessing File Flag
A34314
ON when file data is actually being accessed.
Use this flag as an execution condition to pre-
vent a file memory instruction from being exe-
cuted while another is in progress.
Memory Card Detected
Flag
A34315
ON when a Memory Card has been detected.
EM File Format Starting
Bank
A344
Contains the starting bank number of the EM
Area that has been formatted for use as EM
file memory. Contains FFFF when none of the
EM Area has been formatted.
To convert the EM Area for use as file memory,
the PLC Setup’s EM File Memory setting must
be set to 1 and the EM File Memory Starting
Bank (0 to C) must be set. All EM banks from
the starting bank to the last bank will then be
formatted for use as file memory.
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...