Chapter 7 Appendix7.2 Extension SIO Features
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7.2 Extension SIO Features
In the applicable model below, the channel available for SIO communication by parameters to the
extension SIO module mounted on the extension I/O slot can be defined.
Extension SIO Features Application・Version List
Model name Main application version
TTA V 2.00 or later
The version of the applicable tool for this feature is as shown below.
Extension SIO Features Applicable Tool Version List
Tool name Version
PC software V12.03.00.00 or later
TB-02 V1.00 or later
TB-01 V1.50 or later
7.2.1 Specification
The extension SIO module can be classified to two types, RS232C and RS485, by the interface
standard used. The connector type for each module is D-Sub 9-pin.
Communication Specification List
Item Contents
Interface standards RS-232C RS-485
Communication system Start-Stop Synchronous
Full / Half Duplex
Communication
Start-Stop Synchronous
Half duplex communication
Connector D-sub9 pin
Baud rate (bps) 9.6k,19.2k,38.4k,57.6k,76.8k,115.2k,230.4k
Data length 7 or 8 bit
Start bit 1 bit
Stop bit 1 or 2 bit
Binary classification None, Odd or even
7.2.2 Functions
(1) SEL Program Communication
It is a communication mode to send and receive data of the indicated SIO channels using SEL
commands for communication (OPEN, READ, WRIT, CLOS, TMRW and SCHA). OPEN Command
enables sending and receiving the indicated SIO channels, and READ Command receives the data
up to the last character (indicated by SCHA Command) and WRIT Command sends the data in the
indicated column number. (Refer to SEL programing manual for detail)
(2) IAI Protocol Communication
It is a communication mode that enables the host system to refer to data inside the controller or
command to be executed using the serial communication protocol dedicated for IAI. (Refer to other
documents for details for such as transfer format)
It is available exclusively in the teaching port and EtherNet channel as a default, but it is necessary
to set permission to use in multiple channels for IAI protocol communication in I/O parameter in
order to use it in the extension SIO channels.
The extension SIO channel available for IAI protocol communication is only User Released Channel
2 for both TTA and MSEL.
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