Rs485 Link Port; Computer Link Function; An Example Of Computer Link System Configuration - Toshiba V Series User Manual

Chapter 1 System Configuration
1.4.6

RS485 LINK Port

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The following communication function is supported with the LINK port:

Computer link function

Data is transferred between a host computer (including the console) and S2 in a special
protocol through the computer link function.
Up to 32 units of S2/S3 can be connected to the host computer.
With the data transmission protocol of S2/S3 (computer link protocol) created on the host
computer, the host computer provides S2/S3 the following functions (the computer link
protocol is composed of messages in fairly simple ASCII code):
• Reads data from S2/S3.
• Writes data in S2/S3.
• Monitors the S2/S3 operation status (RUN/HALT/ERROR).
• Controls the S2/S3 operation (RUN/HALT).
The engineering tool (PC software for the integrated controller V-series) can also be
connected to this port.
Host computer
1-to-N transmission
converter
RS232C/485
RS485 (Max. 1km)
S2/S3
S2/S3
Figure 1-10 An example of computer link system configuration
S2/S3
Max.32 units
model 2000 Sequence Controller S2 User's Manual -Basic Hardware-