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1-13-4 Upgraded Specifications
The following improvements were made December 1995 and are applicable to
all CV500/CV1000/CV2000-CPU01-EV1 and CVM1-CPU01/CPU11/CPU21-EV2
CPUs with lot numbers in which the rightmost digit is 6 (6) or higher.
Simplified Backup Function Added
Specifications have been changed so that the user program, Extended PC Set-
up, and IOM/DM data can be backed up from memory in the CPU Unit to a
Memory Card without using a Programming Device, and so that the data backed
up in the Memory Card can be transferred back to memory in the CPU Unit with-
out using a Programming Device. (This method is provided as an easy way to
backup and restore data. We still recommend that a Programming Device be
used to confirm all essential backup and restore operations.)
Use the following procedure to prepare to backup data in the memory of the CPU
Unit to a Memory Card.
1, 2, 3...
1. Insert a Memory Card that is not write-protected and check to be sure the
available capacity is sufficient for the files that will be created.
2. Confirm that the Memory Card is not being accessed by file memory opera-
tions or from a Programming Device.
3. Turn OFF pin 5 on the DIP switch on the CPU Unit.
Use the following procedure to prepare to transfer data on the Memory Card to
the memory of the CPU Unit.
1, 2, 3...
1. Insert the Memory Card and be sure that it contains the desired files.
2. Check the file checksums and sizes to be sure that they are correct.
3. Confirm that the CPU Unit is in PROGRAM mode.
4. Confirm that the Memory Card is not being accessed from a Programming
Device.
5. Turn ON pin 5 on the DIP switch on the CPU Unit.
Pins 1 and 2 on the DIP switch are used to specify the files to be transferred.
These pins are normally used to specify the baud rate for a Programming De-
vice, so be sure to return them to their original settings when you finish backing
up or restoring data. Set pins 1 and 2 as shown in the following table.
Pin 1 Pin2 User program Extended PC Setup IOM/DM
OFF OFF Transferred. Transferred. Transferred.
OFF ON Transferred. Not transferred. Not transferred.
ON OFF Not transferred. Transferred. Not transferred.
ON ON Not transferred. Not transferred. Transferred.
File name
(See note.)
BACKUP.OBJ BACKUP.STD IOM: BACKUP.IOM
DM: BACKUPDM.IOM
EM: BACKUPE*.IOM
(* = bank number)
Note Any files of the same name will be automatically overwritten when backing up to
Memory Card.
Data transfers are started by pressing the Memory Card power switch for 3 se-
conds. If the transfer ends normally, the Memory Card indicator will flash once
and will then go out when the transfer has completed. The time required will de-
pend on the about of data being transferred. If there is insufficient memory avail-
able on the Memory Card to back up the specified data or if the specified files are
not present on the Memory Card when restoring data, the Memory Card indica-
tor will flash 5 times and then go out.
Note Approximately 17 s will be required to backup all data except the EM files for the
CV1000 using a 1-Mbyte Memory Card. Approximately 2 s will be required to
restore the same data to the CPU Unit’s memory.
Backing Up Data to a
Memory Card
Transferring Data Back to
CPU Unit Memory
Specifying Files
Starting and Confirming
Data Transfers
Improved Specifications Section 1-13
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