IDEC WindO/I-NV4 - Page 113

WindO/I-NV4 User’s Manual 3-5
3 DM Link Communication
3
Communication
■ DM Link 1:N Communication
The external device is connected to multiple MICRO/I by using a serial interface.
■ DM Link Ethernet (UDP) Communication
The external device is connected to multiple MICRO/I by using the Ethernet interface (UDP protocol).
HG3G HG2G-5FHG5G-V HG4G-V HG3G-V HG2G-V HG2G-5T HG4G HG1G HG1P HG2J-7U
Station No.1
Station No.2
Station No.3
MICRO/I
Dedicated DM
Link memory
Dedicated DM
Link memory
Dedicated DM
Link memory
External device
Read
Write
Read
Write
Read
Write
DM Link 1:N Communication
The Event Transmission function cannot be used with DM Link 1:N Communication.
HG3G HG2G-5FHG5G-V HG4G-V HG3G-V HG2G-V HG2G-5T HG4G HG1G HG1P HG2J-7U
Write
Read
DM Link Ethernet (UDP) Communication
External Devices
(Computer, PLC or board computer)
HUB
MICRO/I
Delicated DM
Link memory
• The Event Transmission function cannot be used with DM Link Ethernet (UDP) communication.
• In DM Link Ethernet (UDP) Communication, when a Response is returned from the MICRO/I to a
command source, the Response can also be returned to specified addresses (IP Address, Port Number) at
the same time. For details, refer to Chapter 4 “DM Link Communication” in the WindO/I-NV4 External
Device Setup Manual.