Toshiba T-PSV, Operation Manual

Page: 4 / 38

Operation Manual
3
1. Overview
1.1 T-PSV Overview
The T-series PLC DDE Server (hereafter called T-PSV) is an application software that runs on
Windows 98/Me/NT4.0/2000. The T-PSV works to collect data from T-series PLCs connected by
Ethernet and/or serial communication line, and to exchange the data with other Windows
application, such as Excel, using DDE (Dynamic Data Exchange) . Data writing into the PLC is
also possible.
You can access any register/device data in the PLCs connected on Ethernet or serial line, and
can use these data on Windows application without need of developing the communication
program.
Configuration file for T-PSV:
This file specifies the PLC communication method, data sampling timing, Tag name
designation, etc. This file is CSV format which can be edited by Excel, etc.
DDE client application (Excel, Visual Basic, etc.):
The PLC's data can be displayed on Excel spreadsheet by designating the Tag name with
the DDE expression. Data writing into the PLC is also possible by using VBA.
T-PSV program:
The T-PSV is a program to gather the PLC's data based on the configuration file. When a
DDE client application requests the data, the T-PSV sends the data to the client application.
After that, the T-PSV sends the data when the data is changed.
T-PSV
DDE server
for T-series
PLC
DDE client
application
(Excel, etc.)
Configuration
file for T-PSV
(CSV file)
PLC PLC PLC PLC
PLC PLC PLC PLC
Serial Ethernet
Ethernet UDP/IP Computer link
Serial (RS232C/RS485) Computer link
Personal computer