MDS MDS iNET 900 Instrukcja Użytkownika Pobierz pdf (Strona 5)

MDS 05-4131A01, Rev. A MDS iNET ENI Supplement 5

2.1.3 Differences Between Allen-Bradley ENI and

MDS iNET/ENI

The functional differences between the Allen-Bradley ENI and the MDS

iNET/ENI include the following:

• The ENI allows up to two peers for outgoing messaging, two peers

for incoming messaging, and two for messaging in either direction.

The iNET/ENI is limited to 128 peers in any direction.

• The ENI supports configuration of the BOOTP Enable flag. The

iNET/ENI supports configuration of DHCP Enable flags.

• The ENI supports saving configuration to both RAM and ROM. The

iNET/ENI always stores configuration in ROM.

• The ENI uses CRC error checking for fixed baud rates and

BCC/CRC auto-detect for autobaud. The iNET/ENI always uses

BCC/CRC autodetect. This simplifies DF1 controller configuration

while maintaining full backward compatibility.

• The ENI only has one serial port. The iNET/ENI has two serial

ports, and supports both of them for data transfer. For the older lad-

der programs written for the ENI, the COM2 port is used as the

default. To support setting a baud rate for the COM1 serial port, an

additional configuration channel 247 is supported.

• The ENI does not support Ethernet message routing (that is, you

cannot send a message from an Ethernet controller to the ENI and

have it re-sent to another Ethernet controller). iNET/ENI supports

Ethernet message routing to implement message transfer over the

wireless link between several iNETs.

NOTE: Configuration of the iNET/ENI can be accomplished using the

same two methods that function with Rockwell’s ENI module:

1. With Rockwell ENI configuration utility connected to

COM2 of the iNET/ENI.

2. Via EtherNet/IP using commands and structures listed for

ENI in the 1761-NET-ENI User Manual.

In addition to these methods, configuration may also be

performed using the standard user interface of the iNET trans-

ceiver and following through the Serial Port Configuration

Wizard for DF1 to EtherNet/IP.

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MDS MDS iNET 900 Instrukcja Użytkownika Strona 5