485接入信号灯参数结构体。
struct{ NET_ITC_SINGLE_RS485_LIGHT_PARAM struRS485Light[MAX_LIGHT_NUM]; BYTE byRes[8]; }NET_ITC_RS485_LIGHT_PARAM, *LPNET_ITC_RS485_LIGHT_PARAM;
NET_ITC_LIGHT_ACCESSPARAM_UNION