Yaskawa VCD 723 - Manual (Page 49)

3 Operation
43 Upload/Download of Program/Parameters
9/15/93
Upload/
Download
of Program or
Parameters
(T992)
In addition to the electrical connections, a serial communications program must
be utilized by the computer to access data through the serial port. A serial
communications program which supports the Y Modem Batch file transfer
protocol, such as ProComm™ or Qmodem™ must be installed on the PC. The
Y Modem Batch file transfer protocol is the protocol that must be used when
communicating with the VCD 723. In uploading and downloading of files, the
drive behaves like a bulletin board service to the PC. A file upload means that a
file is sent from the PC to the drive. A file download means that a file is sent
from the drive to the PC.
There are two file types associated with upload and download. One is the PAC
program file (i.e., the file with the .PRG extension). The other is the parameter
file (i.e., the file with the .PAR extension). The PAC program file is the file that
contains the executable instructions that determines the application
characteristics of the drive. The parameter file is a file of all the parameter
settings of a drive at the time the .PAR file was captured (from a previous
parameter download).
Figure 8. VCD 723 to IBM PC Compatible Computer Interconnect
Diagram
The VCD 723 has the ability to pass program and parameter information
between the drive’s memory and a computer with a serial port. The direction of
data flow is defined as Upload (from the computer to the drive) or Download
(from the drive to the computer). Figure 8 shows the electrical connections
required to connect the serial port of the VCD 723 to the serial port (COM1) of
an IBM PC™ compatible computer. The PC utilized must have a serial port and
disk drive.
IBM PC
COMPATIBLE
COM 1
9 TO 25 PIN
CONVERTER
(P/N 50210702)
DB25 TO RJ12
CONVERTER
(P/N 46503027-0010)
RJ12 CABLE
(P/N 05P00211-0043)
ISOLATED
RS232 PORT
LA-11
VCD 723