1.2 Explanation of Relays
1-31
1.2.6 Link Relays (L) for FP2/FP2SH/FP10SH
Function of link relays (L)
Link relays are relays used for the PC Link, that can be shared between multiple
programmable controllers when they are connected using a MEWNET link.
The following types of MEWNET links are available.
− MEWNET-H link system for FP10SH (for coaxial cables)
− MEWNET-W link system for FP2, FP2SH and FP10SH (for wire cables)
− MEWNET-P link system for FP10SH (for fiber−optic cables)
If calculation results are output to the link relay (coil) of a certain PLC, the results are
also sent to other PLC connected with MEWNET, and will be reflected in link relay
(contact) that have the same number.
Link station
Send-area
Send
Link
station
Receive
MEWNET
Link unit
Receive-area
on
Ln
on
Ln
CPU
CPU
When link relays are used, bit information can be exchanged in this way between PLCs.
To Next Page
Loading...
