IAI RoboNet, Operation Manual

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Part 2 Startup Chapter
5.2.4 RS485SIO
1. Modbus gateway mode
The procedures for setting and starting the master are explained below. If function blocks are to be used, download the
following file in advance from our website.
Dedicated ROBONET function block file: RBNET_RW
Website: http://www.iai-robot.co.jp
1. Set up the PLC
(1) Set the switches on the serial communication unit (SCU)
(2) Create an I/O table
(3) Set up the PLC system
(4) Set up the serial communication unit (SCU) software
↓
2. Import the function block definitions
Download the dedicated ROBONET function block file (RBNET_RW) from the website to the PC.
↓
3. Assign the function block definitions (Generate an instance) *
Insert a function block in the ladder section window.
↓
4. Set parameters for the function block *
Set parameters for the function block instance and assign I/Os for communication with external devices.
↓
5. Create a ladder sequence
The above procedure applies to the Modbus gateway mode. Accordingly, set DIP switch 2 on the RS485SIO gateway unit to
the “OFF” (left) position. Function blocks can be used in the Modbus gateway mode.
*
Steps 3 to 5 in the above flow are required when function blocks are used. If function blocks are not used, these steps can
be omitted.