Rockwell Automation RECOMM-ENET EtherNet/IP Communications Module User Manual

Page 39

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Configuring the EtherNet/IP Module

4-13

transmits Peer messages when a change-of-state
condition occurs, minimum and maximum intervals are
required.

The minimum interval ensures that the module does

not transmit messages on the network too often, thus
minimizing network traffic. It is set in module
parameter 52 (Peer Out Time).

The maximum interval ensures that the module

transmits messages often enough so that the
receiving module(s) can receive recent data and verify
that communications are working or, if
communications are not working, can timeout. The
maximum interval is the value of module parameter 52
(Peer Out Time) multiplied by the value of module
parameter 53 (Peer Out Skip).

In the example in figure 4.18, the minimum interval is set
to 2.00 seconds, and the maximum interval is set to 4.00
seconds (2.00 x 2).

Step 5.

Set module parameter 51 (Peer Out Enable) to On. The
module will transmit the data selected in module
parameters 49 (Peer A Output) and 50 (Peer B Output) to
the network. Another module must be configured to
receive the peer I/O data.

4.8.3 Configuring the Module to Receive Peer-to-

Peer Data

To configure the module to receive Peer-to-Peer data:

Step 1.

Verify that module parameter 47 (Peer Inp Enable) is set
to Off (see figure 4.19). This parameter must be set to Off
while you configure the peer input parameters.

Figure 4.18 – Peer Out Time and Peer Out Skip Screens on an LCD OIM

Port 5 Device

RECOMM-ENET

Parameter #: 52
Peer Out Time

2.00

Secs.

0 <> 10.00

Port 5 Device

RECOMM-ENET

Parameter #: 53
Peer Out Skip

2

1 <>16

Default =
10.00 Secs

Default = 1

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