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Subject :
VK之间的端口监听
Description :
为什么串行连接只与RS232一起工作,而不是与RS422或485一起工作,以便整合VK1100的2个单元?
Solution :
VK1100/VK2100串行端口连接可分为两部分:VK之间的正常使用和端口监听。正常使用,请参考产品手册中的VK系列管脚定义。对于VK之间的端口监听,如果应用程序要监视多个VK控制箱之间的行为(例如VK1100 1打开其继电器1后,然后关闭VK1100_2的继电器2),您可以利用VK的串行接口进行监控。您可以使用RS232、RS422或RS485接口。对于RS232和RS422,您需要使用交叉电缆。RS485是针对针。
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