目录

背景

思路

验证

调试问题记录

opENer断言报1/303故障

opENer断言报forword open失败

双连接不稳定

---

背景

在实际的工程应用中，有高频率的控制需求，还有低频率的控制需求。

思路

opENer原生支持多IO连接，需要修改opener_user_conf.h，如支持两个生产者连接：

/** @brief Define the number of supported exclusive owner connections.
 *  Each of these connections has to be configured with the function
 *  void configureExclusiveOwnerConnectionPoint(unsigned int pa_unConnNum, unsigned int pa_unOutputAssembly, unsigned int pa_unInputAssembly, unsigned int pa_unConfigAssembly)
 *
 */
#define OPENER_CIP_NUM_EXLUSIVE_OWNER_CONNS 2

如果两个连接分别运行在不同的 同步周期下，需要修改最小支持的周期值，如2ms：

/** @brief The time in ms of the timer used in this implementations, time base for time-outs and production timers
 */
static const MilliSeconds kOpenerTimerTickInMilliSeconds = 2;

在ApplicationInitialization（）中注册两路连接对应的instance跟ConfigureExclusiveOwnerConnectionPoint（），

#define HIGHT_PRI_CONMMU_O_TO_T                     (100)
#define HIGHT_PRI_CONMMU_T_TO_O                     (150) 
#define DEMO_ASSEMBLY_CONFIG                        (151)

#define LOW_PRI_CONMMU_T_TO_O                       (254)
#define LOW_PRI_CONMMU_O_TO_T                       (255) 
#define DEMO_ASSEMBLY_SW_CONFIG                     (200) 

#define DEMO_CONNECTION_LED_EXCLUSIVE_OWNER (0)   
#define DEMO_CONNECTION_SW_EXCLUSIVE_OWNER  (1)    

EipUint8 g_assembly_data_led_input[DEMO_ASSEMBLY_LED_INPUT_BYTES]     = {0}; /** Input */
EipUint8 g_assembly_data_led_output[DEMO_ASSEMBLY_LED_OUTPUT_BYTES]   = {0}; /** Output */
static EipUint8 g_assembly_data_config[DEMO_ASSEMBLY_CONFIG_BYTES]    = {0}; /** Configuration */


EipUint8 g_assembly_data_sw_input[DEMO_ASSEMBLY_SW_INPUT_BYTES]       = {0}; /** Input */
EipUint8 g_assembly_data_sw_output[DEMO_ASSEMBLY_SW_OUTPUT_BYTES]     = {0}; /** Output */
static EipUint8 g_assembly_data_sw_config[DEMO_ASSEMBLY_SW_CONFIG_BYTES]    = {0}; /** Configuration */

/* global functions called by the stack */
EipStatus ApplicationInitialization(void) {
  /** Create Assembly objects to be accessed by implicit connection. */
  CreateAssemblyObject( HIGHT_PRI_CONMMU_O_TO_T, g_assembly_data_led_input, sizeof(g_assembly_data_led_input));
  CreateAssemblyObject( DEMO_ASSEMBLY_CONFIG, g_assembly_data_config, sizeof(g_assembly_data_config));
  CreateAssemblyObject(HIGHT_PRI_CONMMU_T_TO_O, g_assembly_data_led_output, sizeof(g_assembly_data_led_output));

  CreateAssemblyObject( LOW_PRI_CONMMU_O_TO_T, g_assembly_data_sw_input, sizeof(g_assembly_data_sw_input));
  CreateAssemblyObject( DEMO_ASSEMBLY_SW_CONFIG, g_assembly_data_sw_config, sizeof(g_assembly_data_sw_config));
  CreateAssemblyObject( LOW_PRI_CONMMU_T_TO_O, g_assembly_data_sw_output, sizeof(g_assembly_data_sw_output));


  ConfigureExclusiveOwnerConnectionPoint(DEMO_CONNECTION_LED_EXCLUSIVE_OWNER,
                                          HIGHT_PRI_CONMMU_T_TO_O,
                                          HIGHT_PRI_CONMMU_O_TO_T,
                                          DEMO_ASSEMBLY_CONFIG);

  ConfigureExclusiveOwnerConnectionPoint(DEMO_CONNECTION_SW_EXCLUSIVE_OWNER,
                                          LOW_PRI_CONMMU_T_TO_O,
                                          LOW_PRI_CONMMU_O_TO_T,
                                          DEMO_ASSEMBLY_SW_CONFIG);

  return kEipStatusOk;
}

到此，系统中就已经在assembly = 0x04中注册了两个生产者连接，对应的connection path分别是：

"20 04 24 97 2C 96 2C 64";    $ Path
"20 04 24 C8 2C FE 2C FF";    $ Path

验证

启动Scanner，按上述配置的eds文件配置主站，启动implicit_messaging 程序。

wireshark报文如下，从报文中可以看到，有两组生产者连接在正常通讯

调试问题记录

opENer断言报1/303故障

这种一般是T->O和O->T的连接Instance搞错了，如搞反了。

opENer断言报forword open失败

这种需要检查下生产者连接的Scanner 与 Adapter 配置参数是不是一致的，一般是这个问题导致的。

双连接不稳定

这种一般是log打印耗时长，opENer任务阻塞导致的。需要排查任务优先级设置，以及是否有其他阻塞项。

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