Casio fx-7400G PLUS User manual

Data Communications Chapter 9
163
Data Communications
This chapter tells you everything you need to know to transfer pro-
grams between the fx-7400G PLUS and certain CASIO Graphic Sci-
entific 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 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.
1. Connecting Two Units
2. Connecting the Unit with a Personal Computer
3. Connecting the Unit with a CASIO Label Printer
4. Before Performing a Data Communication Operation
5. Performing a Data Transfer Operation
6. Screen Send Function
7. Data Communications Precautions
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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.

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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 Interface Unit.
For details on operation, the types of computer that can be connected, and hardware
limitations, see the user’s guide that comes with the Interface Unit.
Some types of data may not be able to be exchanged with a personal computer.
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 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 Interface Unit.
5. Turn on the power of the unit, followed by the personal computer.
•After you finish data communications, turn off power in the sequence: the unit
first, and then the personal computer. Finally, disconnect the equipment.

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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
guide that comes with your Label Printer for details on how to perform this operation.
•The operation described above can be performed using the following Label Printer
models: KL-2000, KL-2700, KL-8200, KL-8700 (as of February 2002).
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. Turn on the power of the unit, followed by the Label Printer.
•After you finish data communications, turn off power in the sequence: the unit
first, and then the Label Printer. Finally, disconnect the equipment.
SB-62 cable
Label Printer

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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: ........... 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
4(IMGE) ...... Menu of graphic image transfer settings
Communication parameters are fixed at the following settings.
•Speed (BPS): 9600 bits per second
•Parity (PARITY): NONE
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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. Ac-
tual 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 them
4(BACK) ..... All memory contents, including mode settings
uu
uu
uTo send selected data items
Press 1(SEL) to display a data item selection screen.
1(SEL)
Data items
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1(SEL) ........ Selects data item where cursor is located.
4(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 4(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 types of data items can be sent.
Data Item Contents Overwrite Password
Check*1Check*2
Program Program contents Yes Yes
List nList memory (1 to 6) contents Yes
Y=Data
Graph expressions, graph write/
non-write status, View Window No
contents, zoom factors
V-WinView Window memory contents No
Variable Variable assignments 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.

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1(YES) ........ Replaces the receiving unit’s existing data with the new data.
4(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
4(SYBL) ...... Symbol input
After inputting the password, press w.
uu
uu
uTo execute a send operation
After selecting the data items to send, press 4(TRAN). A message appears to
confirm that you want to execute the send operation.
4(TRAN)
1(YES) ........ Sends data.
4(NO) ......... Returns to data selection screen.
Data item name
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Press 1(YES) to send the data.
1(YES)
•You can interrupt a data operation at any time by pressing A.
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 4(BACK), and
the back up send menu shown below appears.
4(BACK)
Press 4(TRAN) to start the send operation.
4(TRAN)
The following shows what the displays of the sending and receiving units look like
after the data communication operation is complete.
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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.
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 4(IMGE), and the following dis-
play appears.
4(IMGE)
1(Off) ........... Graphic images not sent
2(On) ........... Bitmap
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.
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