Rockwell-automation 1799-DASCII DeviceNet Serial Interface Manuel d'utilisateur télécharger pdf (Page 11)

DeviceNet Serial Interface Module 11

Publication 1799-IN012B-EN-P - July 2008

RS-232 without Hardware Handshaking

Follow these steps to connect the RS-232 wiring without hardware handshaking.

1. Connect the receive wire to pin 2 (RXD).

2. Connect the transmit wire to pin 3 (TXD).

3. Connect common to pin 5 (common).

The channel automatically operates in RS-232 mode when these pins are

connected.

The RS-232 electrical interface uses a MAX232 transceiver or electrical equivalent.

RS-232 with Hardware Handshaking

When implementing RTS/CTS handshaking, follow these steps to connect RS-232

wiring.

1. Connect receive to pin 2 (RXD).

2. Connect transmit to pin 3 (TXD).

3. Connect transmit/handshaking to pin 7 (RTS).

4. Connect receive/handshaking to pin 8 (CTS).

5. Connect common to pin 5 (Common).

The channel automatically operates in RS-232 mode when these pins are

connected.

IMPORTANT

All pins are active. Do not connect to other pins.

IMPORTANT

All pins are active. Do not connect to other pins.

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Rockwell-automation 1799-DASCII DeviceNet Serial Interface Manuel d'utilisateur Page 11