VSE 005-1 / VSE 005-2 Ethernet and RS-485 module

Ethernet and RS-485 communication module VSE 005-1 and VSE 005-2 provide Ethernet interface and galvanically isolated RS-485 interface.

VSE005-1 and VSE005-2 can be used to provide so called "Service bus" interface to the VAMP relays. Alternatively the modules can be used for the ModbusTCP communication. Service bus functionality is provided when the dip switches are set, so that the Ethernet interface is connected to the LOCAL port of the VAMP relay. ModbusTCP can be used when the dip switches are set, so that the Ethernet interface is connected to the port which is configured to operate with ModbusTCP protocol.

The RS-485 interface supports 2-wire connection. There are dip switches to switch the termination resistors on or off. The direction control of the RS-485 transceiver is done automatically. The automatic direction control turns the transceiver to transmit mode after detecting the falling edge of a 0-bit. When the transceiver in changed to receive mode, the RS-485 line changes state to logic 1 state due to the biasing
resistors. The recommended bandrate is 9600 b/s.