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CHAPTER 4. FILE DATA
TRANSMISSION (ER-02FD = 02FD
MODE)
1. Overview of the ER-02FD function
The ER-02FD function is intended for dumping (loading a floppy disk
in the ER-02FD floppy disk drive with files stored in an ECR on a
file-by-file basis) and loading (loading an ECR with files stored in a
floppy disk in the ER-02FD on a file-by-file basis). The file name of
each file in a floppy disk is composed of its file number and the
machine number of the ECR.
Appending a machine number to each file name enables the same
file in multiple ECRs to be loaded into a single disk. For example,
when the file number of a department transaction file is "110" and it is
loaded from an ECR whose machine number is 123456 into a floppy
disk, the file name of that file is as follows.
File name: F
110 3456
The file name of PRESET FILE does not append a machine number.
Because the data of preset file must be able to loaded to ECR.
For example, when the file number of a department preset file is "10"
and it is loaded from an ECR whose machine number is "10" and it is
loaded from an ECR whose machine number is 123456 into a floppy
disk, the file name of that file is as follows:
File name: F
010 XXXX
The ECR has the following functions for the ER-02FD floppy disk
drive.
1. Formatting a floppy disk in the ER-02FD
2. Reference to the directory in a floppy disk placed in the ER-
02FD
3. Deletion of files from a floppy disk in the ER-02FD
4. Sending file data to the ER-02FD
5. Receiving file data from the ER-02FD
6. Presetting of stack files
7. Sending stack file data to the ER-02FD
8. Receiving stack file data from the ER-02FD
Data communications between the ECR and the ER-02FD are always
started by the ECR. This means that performing a specified key
operation at the ECR activates its ER-02FD function.
The file type of each file name is fixed at "DAT" in the ER-02FD.
This means that those files that are preset in a floppy disk placed in
the ER-02FD are all data files.
Machine number (Lower 4 digits)
File number
The letter "F" must head any file name.
Dummy Machine number
File number
The letter "F" must head any file name.
2. List of Job numbers
PGM2 Mode
Job#
893
Formatting a floppy disk
894
Reference to the directory in a floppy disk
895
Deletion of files from a floppy disk
896
Sending file data to the ER-02FD
898
Receiving file data to the ER-02FD
887
Stack file presetting 1
888
Stack file presetting 2
Sending stack file data (preset1) to the ER-
889
02FD
Receiving stack file data (preset1) from the
890
ER-02FD
Sending stack file data (preset2) to the ER-
891
02FD
Receiving stack file data (preset2) from the
892
ER-02FD
Reading
PGM Mode
Job#
887
Reading of preset stack files
3. Errors That May Occur in Data
Communication between the ECR and
the ER-02FD
If any error occurs due to imperfect floppy disk or other causes during
data communication between the ER-02FD and the ECR, its journal
printer prints the corresponding error status number.
The following errors may occur during data communication between
the ER-02FD and the ECR.
Error Status No.
1
2
3
4
5
6
7
8
9
10
12
16
17
19
20
23
24
™ 55 ™
Contents
Contents
Command error
No floppy disk is set.
No file is present.
Specified file is not present.
Those files whose file names are identical are
present.
Specified file ID read only file.
Empty file has been read.
Insufficient disk capacity
The number of files exceeds the limit.
Floppy disk write protect error
Files are present in the floppy disk when it is
formatted.
Send error (Check sum error, etc.)
Send error (Overrun error, etc.)
Floppy disk error (File writing cannot be made
correctly.)
Floppy disk error (Formatting cannot be made
correctly.)
Floppy disk error (File cannot be read
correctly.)
the setting of the dip switch does not agree
with disk format.
Mode
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
PGM2
Mode
PGM2
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