B&B Electronics MESR901 Especificações descarregar pdf (Página 17)

3. Setup and Connections Vlinx MESR9xx Modbus Gateway

Page 13 Manual Documentation Number MESR9xx-0712m

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Connecting the MESR9x2T-x

The MESR9x2T-x has two serial connections that support RS-232, RS-422 and RS-485

(2- and 4-wire). The unit has two connectors, both of which are 5-position terminal

blocks. Make the appropriate connections to the terminal blocks to match the serial

connection mode you select when configuring the Modbus gateway.

Note: Refer to Appendix D for connector pinout information.

Figure 14. MESR902T-x Connections

Connecting the MESR9x2D-x

The MESR9x2D-x has two serial connections that support RS-232, RS-422 and RS-485

(2- and 4-wire). The unit has two connectors, both of which are DB-9M connectors. You

must connect the Modbus network to the Modbus gateway via a serial cable. The

MESR902D is a DTE. If the Modbus network is a DTE, use a null modem (cross-over)

cable. If the Modbus network is a DCE, use a straight-through cable.

Note: Refer to Appendix D for connector pin-out information.

Figure 15. MESR902D-x Connections

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B&B Electronics MESR901 Especificações Página 17