Delta RMC101 User Manual
Page 384
RMC100 and RMCWin User Manual
5-134
In this example, the RECV(098) instruction will be triggered each time the Communication Port 0
Enabled Flag (A202.00) is set. This flag will be set any time port 0 is not busy. Therefore, the PLC
will read these registers from the RMC continuously as fast as it can. Depending on the load of
the PLC, this will read the RMC's status as often as every 18 ms.
The SEND(090) instruction uses port 1. It is important that this is a different port number from the
RECV(098) instruction. It is possible to use the same port number for two network instructions,
but this reduces performance and requires additional synchronization ladder logic. Examples of
doing so are given in the Omron documentation.
CV Example
The user has an Omron CV PLC with a CV500-ETN01 Ethernet Unit and an RMC-ENET. The
Omron PLC has just one network, which is the Ethernet network accessible through an ETN01
Ethernet Unit. This network has Network Address 1. The ETN01 Ethernet Unit has Module
Address (equivalent to Unit Number in the CS1) 0. The Omron PLC has IP address 192.168.0.2,
and the RMC has IP address 192.168.0.5. The Omron ETN01 is set up to use Automatic Address
Generation, so the RMC has Node Number 5, and the ETN01 has node number 2.
The following diagram demonstrates the configuration: