RS485 generall

FAQ about RS485

I added an ipEther232 with RS485 to the bus system. Why doesn't it work?

I added an ipEther232 with RS485 to the bus system. Why doesn't it work?

During the installation, please ensure correct polarity of wire pairs, since wrong polarity leads to inverted data signals. Particularly in the case of difficulties while installing new end devices, any error search should begin by examining the bus polarity.

Does every RS485 interface receive an own IP address?

Does every RS485 interface receive an own IP address?

No. Since several transmitters work together at the same line, it must be ensured via protocol that a maximum of one data transmitter is active at the same time. During this time all other transmitters must be in high-impedance status.

How many users can be connected to the RS485 bus system?

How many users can be connected to the RS485 bus system?

Up to 32 users can be connected.

How long may the line be?

How long may the line be?

The RS485 line may have a maximum length of 500 meters.

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