Contents
1.
Compliance........................................................................................ 2
1.1.1.
1.1.2.
2.
3.
Panel and Names .............................................................................. 4
3.1.1.
3.1.2.
4.
Installation.......................................................................................... 5
4.1.1.
4.1.2.
4.1.3.
5.
Memory of PLC.................................................................................. 7
5.1.
5.1.1.
5.1.2.
5.2.
5.2.1.
5.2.2.
5.2.3.
5.3.
5.3.1.
5.3.2.
5.3.3.
5.3.4.
5.4.
6.
Timing Chart .................................................................................... 17
6.1.
6.2.
7.
Monitor Mode................................................................................... 18
7.1.
7.2.
8.
Sample Program.............................................................................. 20
©A&D Co. ltd., AD-4402 OP-21 Instruction Manual
International Version 2038-1A-IE 200110
Address Map ................................................................................. 7
Command Bit............................................................................... 10
Commands .................................................................................. 11
Error Information.......................................................................... 15
Read Command .......................................................................... 17
Write Command........................................................................... 17