Instruction Manual
5-10
- IV Series User’s Manual (Field Network) -
Data I/O communication setting method
14 
Click the CPU in the [Devices] tab. Select 
[Download to device] - [All] to download 
the setting to the CPU. 
The [Extended download to device] screen will 
appear. 
15 
Click the [Load] button to perform the 
download. 
16 
Set the CPU mode switch to “RUN”. 
If the connection is successful, the RUN LED 
of the CPU will light in green and the data I/O 
communication will become enabled. 
By default, [Size of the process-image input 
area] is set to “128”. 
To be able to access the addresses after 
address 128, expand the setting as shown 
below. 
Modifying [Size of the process image 
input] may affect the scan time of the PLC. 
Conduct a thorough verication before the 
operation. 
5
Data I/O communication










