DMU11 评估套件


使用 DMU11 评估套件查看和记录 DMU11 的输出数据,用于评估和开发测试。 此套件包括:DMU11-21 单元、MEV RS485i USB 转换器、MEV 驱动器、数据记录软件和电缆。 也可在以下链接下载支持该套件的实用软件。


I'm having trouble receiving data from the DMU11

The DMU11 Output Message is output on a RS422 Serial interface at 460,800 baud using a non-return to zero protocol. The DMU11 RS422 driver does not include a 120-ohm termination resistor which is normally associated with the RS422 interface. Therefore, if the user is not going to use the receive feature of the DMU11 (RX Lo and Rx Hi), then a 120 ohm termination resistor needs to be inserted between Pins 3 and 4 of the connector. Pins 3 and 4 should not be left unterminated since noise received on Pins 3 or 4 could cause the DMU11 to stop transmitting data on it transmit lines. Ideally, the termination resistor should be placed as close to the connector as possible.

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