IO Link

[Selinaa007]

Hello people,

I have recently joined a company as an Electrical + Controls Engineer. They are using Balluff IO Blocks for communicating with the Sensors, LVDTs, Switches, all kinds of IOs. And then these IO Blocks are connected to the plant/Local network to the PLC. I am having hard time understanding the difference between normal IO Block connection like DI/DO and IO Link.

 

[petersonra]

Io link is a communications channel rather than a di or do channel.

 

[BillyMac59]

My take: think of DI/DO as hardwired devices. In many cases, this wiring is tied directly to I/O modules at a PLC. The IO link is a combination of hardwiring and network. The DI/DO will be wired to a field module. This module will be networked to the PLC which can scan the status of the field modules I/O. Hope that helps....

 

[Jraef]

IO-Link is essentially like Ethernet Lite.

 

[Selinaa007]

My take: think of DI/DO as hardwired devices. In many cases, this wiring is tied directly to I/O modules at a PLC. The IO link is a combination of hardwiring and network. The DI/DO will be wired to a field module. This module will be networked to the PLC which can scan the status of the field modules I/O. Hope that helps....

perfect explanation. Thanks !!