Omega Engineering OMR-6520 manual Constructing a OMR Network, 2 Branch Topology, 3 Free Topology

Host

RS-232

OMR-651 0

OMR Modules

OMR-6520

RS-232 to RS-485/RS-422

Converter

RS-485 bus

Terminator

RS-485 bus

Figure 1-2 Branch Topology

Host

OMR-6510

Repeater

OMR Modules

OMR-6520

RS-232 to RS-485/RS-422 Converter

RS-485 bus

OMR Modules

Terminat

OMR-6510

Repeater

OMR I/O modules

Terminat

OMR I/O modules

Figure 1-3 Free Topology

1.7Constructing a OMR Network

Go through the following steps, the user can construct an OMR network easily.

1.Setup an OMR-6520.

2.Connect the host computer with the OMR-6520.

3.Setup one or more OMR-6510 if necessary.

4.Connect the OMR-6510 to extend to RS-485 bus if necessary.

5.Install the OMR utility software from disk.

6.Initialize the brand-new OMR modules.

7.Add the new OMR modules into RS-485 network.

Refer to chapter 2 for executing step 1 and 2. Refer to chapter 3 for executing step 3, 4 and for understanding the time to install OMR-6510. The knowledge about the software for operating the OMR is in chapter 5. For executing the step 6 and step 7, refer to chapter 4.

Introduction 1-5