Automationdirect.com HX-ECOM Series - ECOM Settings> Configuration> Peer to Peer

Ethernet Communications Modules, 3rd Edition, Rev. D
3–10
Chapter 3: Configuring ECOMs Using NetEdit3
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ECOM Settings> Configuration> Peer to Peer
This function allows you to configure the client H0/H2/H4 -ECOM(100) module to use an
IP protocol packet to perform the RX/WX instruction, as opposed to a broadcast packet to
locate the slave ECOM or MODBUS TCP server.
Chosing Peer to Peer: The following are reasons or conditions of when to configure the H0/
H2/H4 -ECOM(100) for peer to peer communications with a TCP/IP server device:
• To eliminate network broadcast traffic when the ECOM(100)
is a client executing RX/WX network instructions.
• When an ECOM(100) is an “ECOM protocol client” and
needs to access other server ECOMs through a router.
• When an ECOM100 needs to serve as MODBUS TCP client
Clicking the Peer to Peer Config button in the ECOM
Settings>Configuration box brings up the Peer to Peer
Configuration window shown below. Any previous peer to
peer configurations will be listed in the table.
The RX and WX ladder logic
instructions used by the PLC
allow you specify a Node
(Device) Number as the
slave identifer in the range
of 1- 87. The Peer to Peer
Configuration information
is stored in the ECOM(100)
module’s flash memory. This
basically associates a Device
Number (that is used by the
RX/WX instructions) with a
server’s IP address.
Clicking on the Add button in the Peer to Peer
Configuration window will display the Add Device
Address window shown to the right. Enter the
necessary server’s network information (i.e. Device
Number, server’s IP address and protocol). You can
manually enter the information or you can click on the
Find Hx-ECOM button to display all local ECOMs
currently on the network. MODBUS TCP device’s
network information will have to be entered manually.
Refer to page 6- 6 for information on Port and Unit
ID Numbers. Clicking the OK button adds the Device
Configuration to the main peer to peer configuration
screen. Be certain not to duplicate Device Numbers.