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Connecting an RR85 Repeater

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6.4 Reading the Network Indicators

The layout of the Repeater indicators is shown in Figure 62.

Modbus

Plus

Port 2

Modbus

Plus

Port 1

Power

Figure 62 RR85 Repeater Indicators

The POWER OK indicator illuminates steadily when the Repeater has

normal power from the AC line and its internal power supply is

operating normally.

The Repeater has two indicators that show the communication status

at its two Modbus Plus ports. Each port’s indicator flashes when a

transmission occurs at the port.

The intensity of each port indicator reflects the relative rate of

transmission at the port. As the indicator illuminates during

transmission, this in turn reflects the relative amount of network

activity received at the opposite port. For example, if the Port 2

indicator is brightly illuminated, indicating that this port is highly

active, it shows that a high level of activity is being received from the

network section at Port 1.

If a port indicator fails to illuminate, or is illuminated only dimly, it can

indicate a very low level of activity on the opposite port’s cable.

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Schneider Electric Modbus Plus Network Bridge Multiplexer none Guia de Instalação Página 172