Contents
Chapter 1 Introduction ....................................................................................................... 1-1 to 1-6
1.1 Before use ....................................................................................................................................................... 1-2
1.2 Feature ............................................................................................................................................................ 1-3
1.3 Supported CPU module .................................................................................................................................. 1-5
1.4 Confirm software version of EH-SIO ............................................................................................................. 1-6
Chapter 2 Specification...................................................................................................... 2-1 to 2-2
2.1 General specification ....................................................................................................................................... 2-1
2.2 Communication specification.......................................................................................................................... 2-2
Chapter 3 Name and function of each part ........................................................................ 3-1 to 3-2
Chapter 4 Installation ....................................................................................................... 4-1 to 4-10
4.1 Setup of communication setting switch .......................................................................................................... 4-1
4.2 Installation of module ..................................................................................................................................... 4-3
4.3 Connection of communication port ................................................................................................................. 4-4
4.3.1 Connection of RS-232C interface ........................................................................................................... 4-4
4.3.2 Connection of RS-422 / 485 interface .................................................................................................... 4-6
Chapter 5 Control of EH-SIO ........................................................................................... 5-1 to 5-12
5.1 EH-SIO Control command (TRNS 9) ............................................................................................................. 5-1
5.1.1 Function of command ............................................................................................................................. 5-1
5.1.2 TRNS 9 Command format ...................................................................................................................... 5-3
5.2 Input / Output register ..................................................................................................................................... 5-8
5.2.1 Register configuration ............................................................................................................................ 5-9
5.2.2 Detail of input register .......................................................................................................................... 5-10
5.2.3 Detail of output register ........................................................................................................................ 5-12
Chapter 6 Communication Mode ................................................................................... 6-1 to 6-102
6.1 Introduction ..................................................................................................................................................... 6-1
6.2 Free protocol mode ......................................................................................................................................... 6-3
6.2.1 Overview ................................................................................................................................................ 6-3
6.2.2 User project structure .............................................................................................................................. 6-5
6.2.3 Initial setting ........................................................................................................................................... 6-6
6.2.4 Communication start ............................................................................................................................. 6-15
6.2.5 Receive data .......................................................................................................................................... 6-16
6.2.6 Send data............................................................................................................................................... 6-21
6.2.7 Error detection in free protocol mode ................................................................................................... 6-27
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