Casio FX-9750G User manual

Data Communications
This chapter tells you everything you need to know to transfer pro-
grams between the fx-9750G and certain CASIO Graphic Scientific
Calculator models connected with an optionally available SB-62
cable. To transfer data between a unit and a personal computer,
you will need to purchase the separately available CASIO FA-122
Interface Unit.
This chapter also contains information on how to use the optional
SB-62 cable to connect to a CASIO Label Printer to transfer screen
data for printing.
20-1 Connecting Two Units
20-2 Connecting the Unit with a Personal Computer
20-3 Connecting the Unit with a CASIO Label Printer
20-4 Before Performing a Data Communication Operation
20-5 Performing a Data Transfer Operation
20-6 Screen Send Function
20-7 Data Communications Precautions
Chapter
20

364
20-1 Connecting Two Units
The following procedure describes how to connect two units with an optional SB-62
connecting cable for transfer of programs between them.
uu
uu
uTo connect two units
1. Check to make sure that the power of both units is off.
2. Remove the covers from the connectors of the two units.
• Be sure you keep the connector covers in a safe place so you can replace them
after you finish your data communications.
3. Connect the two units using the SB-62 cable.
SB-62 cable
• Keep the connectors covered when you are not using them.

365
20-2 Connecting the Unit with a Personal
Computer
To transfer data between the unit and a personal computer, you must connect them
through a separately available CASIO FA-122 Interface Unit.
For details on operation, the types of computer that can be connected, and hardware
limitations, see the user’s manual that comes with the FA-122.
uu
uu
uTo connect the unit with a personal computer
1. Check to make sure that the power of the unit and the personal computer is off.
2. Connect the personal computer to the FA-122 Interface Unit.
3. Remove the cover from the connector of the unit.
• Be sure you keep the connector cover in a safe place so you can replace it after
you finish your data communications.
4. Connect the unit to the FA-122 Interface Unit.
5. Switch on the power of the unit, followed by the personal computer.
• After you finish data communications, switch off power in the sequence: the unit
first, and then the personal computer. Finally, disconnect the equipment.
fx-9750G

366
20-3 Connecting the Unit with a CASIO Label
Printer
After you connect the unit to a CASIO Label Printer with an optional SB-62 cable,
you can use the Label Printer to print screen shot data from the unit. See the User’s
Manual that comes with your Label Printer for details on how to perform this opera-
tion.
• The operation described above can be performed using the following Label Printer
models: KL-2000, KL-2700, KL-8200 (as of October 1996).
uu
uu
uTo connect the unit with a Label Printer
1. Check to make sure that the power of the unit and the Label Printer is off.
2. Connect the optional SB-62 cable to the Label Printer.
3. Remove the cover from the connector of the unit.
• Be sure you keep the connector cover in a safe place so you can replace it after
you finish your data communications.
4. Connect the other end of the SB-62 cable to the unit.
5. Switch on the power of the unit, followed by the Label Printer.
• After you finish data communications, switch off power in the sequence: the unit
first, and then the Label Printer. Finally, disconnect the equipment.
SB-62 cable
fx-9750G
Label Printer

367
20-4 Before Performing a Data Communication
Operation
In the Main Menu, select the LINK icon and enter the LINK Mode. The following data
communication main menu appears on the display.
Image Set:Off...... Indicates the status of the graphic image send features.
Off: Graphic images not sent.
On: Pressing Msends graphic images.
1(TRAN)..... Menu of send settings
2(RECV) .... Menu of receive settings
6(IMGE) ..... Menu of graphic image transfer settings
Communications parameters are fixed at the following settings.
• Speed (BPS): 9600 bits per second
• Parity (PARITY): NONE
P.372
123456

368
20-5 Performing a Data Transfer Operation
Connect the two units and then perform the following procedures.
Receiving unit
To set up the calculator to receive data, press 2(RECV) while the data communi-
cation main menu is displayed.
2(RECV)
The calculator enters a data receive standby mode and waits for data to arrive.
Actual data receive starts as soon as data is sent from the sending unit.
Sending unit
To set up the calculator to send data, press 1(TRAN) while the data communica-
tion main menu is displayed.
1(TRAN)
Press the function key that corresponds to the type of data you want to send.
1(SEL)........ Selects data items and sends
2(CRNT) .... Selects data items from among previously selected data items
and sends
6(BACK)..... All memory contents, including mode settings
uu
uu
uTo send selected data items
Press 1(SEL) or 2(CRNT) to display a data item selection screen.
1(SEL) or 2(CRNT)
Data items
123456
123456

369
1(SEL)........ Selects data item where cursor is located.
6(TRAN)..... Sends selected data items.
Use the fand ccursor keys to move the cursor to the data item you want to
select and press 1(SEL) to select it. Currently selected data items are marked
with “'”. Pressing 6(TRAN) sends all the selected data items.
• To deselect a data item, move the cursor to it and press 1(SEL) again.
Only items that contain data appear on the data item selection screen. If there are
too many data items to fit on a single screen, the list scrolls when you move the
cursor to the bottom line of the items on the screen.
The following are the types of data items that can be sent.
Data Item Contents Overwrite Password
Check*1Check*2
Program Program contents Yes Yes
Mat nMatrix memory (A to Z) contents Yes
List nList memory (1 to 6) contents Yes
File nList file memory (1 to 6) contents Yes
Y=Data Graph expressions, graph write/ non-write status, View Window No
contents, zoom factors
G-Mem nGraph memory (1 to 6) contents Yes
V-Win nView Window memory contents No
Picture nPicture (graph) memory (1 to 6) data No
DynaMem Dynamic Graph functions Yes
Equation Equation calculation coefficient values No
Variable Variable assignments No
F-Mem Function memory (1 to 6) contents No
*1No overwrite check: If the receiving unit already contains the same type of data, the existing
data is overwritten with the new data.
With overwrite check: If the receiving unit already contains the same type of data, a mes-
sage appears to ask if the existing data should be overwritten with the new data.
Performing a Data Transfer Operation 20 - 5

370
1(YES) ....... Replaces the receiving unit’s existing data with the new data.
6(NO) ......... Skips to next data item.
*2With password check: If a file is password protected, a message appears asking
for input of the password.
Name of password protected file
Password input field
6(SYBL) ..... Symbol input
After inputting the password, press w.
uu
uu
uTo execute a send operation
After selecting the data items to send, press 6(TRAN). A message appears to
confirm that you want to execute the send operation.
6(TRAN)
1(YES) ....... Sends data.
6(NO) ......... Returns to data selection screen.
Press 1(YES) to send the data.
1(YES)
• You can interrupt a data operation at any time by pressing A.
123456
123456
123456
20 - 5 Performing a Data Transfer Operation
Data item name

371
The following shows what the displays of the sending and receiving units look like
after the data communication operation is complete.
Sending Unit Receiving Unit
Press Ato return to the data communication main menu.
uu
uu
uTo send backup data
This operation allows you to send all memory contents, including mode settings.
While the send data type selection menu is on the screen, press 6(BACK), and
the back up send menu shown below appears.
6(BACK)
Press 6(TRAN) to start the send operation.
6(TRAN)
The following shows what the displays of the sending and receiving units look like
after the data communication operation is complete.
Sending Unit Receiving Unit
Press Ato return to the data communication main menu.
• Data can become corrupted, necessitating a RESET of the receiving unit, should
the connecting cable become disconnected during data transfer. Make sure
that the cable is securely connected to both units before performing any data
communication operation.
123456
Performing a Data Transfer Operation 20 - 5

372
20-6 Screen Send Function
The following procedure sends a bit mapped screen shot of the display to a con-
nected computer.
uu
uu
uTo send the screen
1. Connect the unit to a personal computer or to a CASIO Label Printer.
2. In the data communication main menu, press 6(IMGE), and then select “On”
for Image Set.
6(IMGE)
1(OFF) ........ Graphic images not sent
2(ON) .......... Bit map
3. Display the screen you want to send.
4. Set up the personal computer or Label Printer to receive data. When the other
unit is ready to receive, press Mto start the send operation.
You cannot send the following types of screens to a computer.
• The screen that appears while a data communication operation is in progress.
• A screen that appears while a calculation is in progress.
• The screen that appears following the reset operation.
• The low battery message.
• The flashing cursor is not included in the screen image that is sent from the
unit.
• If you send a screen shot of any of the screens that appear during the data
send operation, you will not be able to then use the sent screen to proceed with
the data send operation. You must exit the data send operation that produced
the screen you sent and restart the send operation before you can send addi-
tional data.
• You cannot use 6mm wide tape to print a screen shot of a graph.
P.365
P.366
123456

373
20-7 Data Communications Precautions
Note the following precautions whenever you perform data communications.
• ATRANSMIT ERROR occurs whenever you try to send data to a receiving unit
that is not yet standing by to receive data. When this happens, press Ato clear
the error and try again, after setting up the receiving unit to receive data.
• A RECEIVE ERROR occurs whenever the receiving unit does not receive any
data approximately six minutes after it is set up to receive data. When this hap-
pens, press Ato clear the error.
• ATRANSMIT ERROR or RECEIVE ERROR occurs during data communications
if the cable becomes disconnected, if the parameters of the two units do not
match, or if any other communications problem occurs. When this happens, press
Ato clear the error and correct the problem before trying data communications
again. If data communications are interrupted by Akey operation or an error,
any data successfully received up the interruption will be in the memory of the
receiving unit.
• AMEMORY FULL occurs if the receiving unit memory becomes full during data
communications. When this happens, press Ato clear the error and delete
unneeded data from the receiving unit to make room for the new data, and then
try again.
• To send picture (graph) memory data, the receiving unit need 1-kbytes of memory
for use as a work area in addition to the data being received.