Emerson MRLDS Specifications download pdf (Page 9)

MRLDS Dimensions E2 MODBUS Direct Support for MRLDS • 3

2.2 MRLDS Dimensions

3E2 MODBUS

Direct Support for

MRLDS

3.1 Network Connection

to E2

Connecting an MRLDS to an E2 unit requires the E2

version 3.01 and above. Contact Retail Solutions for

upgrade information if the controller is a version prior to

3.01.

3.1.1 COM Port Associations - E2

Versions 3.xx and Below

An E2 has up to three COM ports that can be assigned

for MODBUS communication (COM2, an RS485 port on

the E2 power interface board, and COM4 and COM6,

which are optional ports requiring expansion cards). COM

ports can only be used for one function; in other words, if

COM2 is set up as the I/O network, you cannot connect

MODBUS devices to COM2. Ensure your E2 is equipped

with an RS485 COM Card (P/N 637-4890) and configured

Figure 2-2

- Attaching and Removing Cover

Figure 2-3 - MRLDS Mounting Dimensions

Figure 3-1 - Location of E2 COM Ports - E2 PIB Board (E2

version 3.xx and below)

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Emerson MRLDS Specifications Page 9