Instruction manual

5・74
Chapter 5 Menu Operation (Window)
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■ CAD interface (Program : Ladder)
This mode is used to transfer data between the system and a host computer (such as a CAD system).
First, the system converts programs and/or the symbol comments into character strings. Then it transfers
them through an RS-232C interface or a floppy (hard) disk based on the settings of the communication
parameters.
For details about the communication format, see the instruction manual for the CAD interface.
There are two methods to transmit data: through a communication port (RS-232C) and using a floppy
(hard) disk. On the [Program: Ladder] window, select [Tools] and [CAD I/F] from the menu bar, and the
[CAD I/F] dialog box will appear. Operate the data transfer with this dialog box.
(2) When you use a floppy (hard) disk
Select "File (FD, HD)" on the "Transfer" item. Enter a file name or click the "Reference" button to
show the files currently available, and select one.
File extensions are as follows:
Ladder diagram with address: .awl
Ladder diagram: .lac
Symbol/comment (normal): .cmt
Symbol/comment (JW-50SP Ver.4.0): .c40
(1) When you use the communication port
Select "Communication Port" on the "Transfer" item and specify "Communication setting" as the
same as the settings in the CAD system.
The data transmission speed can be specified between 110 and 256,000 bps. However, you may
not be able to select some speeds depending on the model of your personal computer. For details,
see the instruction manual for the personal computer.
Select the RS-232C port for the communication port.
Specify each item of stop bit, parity, and data length appropriately.