软件描述
KP3000模块备件控制器继续软件描述单独寻址和切换每个设备更安全。然后，设备将使用奇偶校验和比特率的旧设置进行应答。切换将仅在之后进行。然而，如果公交车受到干扰，答案可能会丢失。当所有设备切换时；建议检查通信。提供反馈的设备的任何功能都是合适的。如果要使用独立于过程外围设备的单个功能，则功能“诊断”子功能“返回查询数据”“是合适的，它返回传输的数据。如果设备的比特率和奇偶校验设置未知，则可以使用比特率和校验的所有组合连续寻址设备，直到设备响应。首先尝试最可能的组合。最后尝试较低的比特率，因为它们需要更长的时间。9.3通用命令”08（0x08）诊断“子功能”0（0x0000）返回查询数据“数据字段任何响应：请求子功能的回声”1（0x0001）重新启动通信选项“数据字段0x0000或0xFF00响应：请求操作的回声：清除所有错误计数器，重新启动节点子功能“4（0x0004）强制仅侦听模式”数据字段0x0000无响应操作：在节点重置或功能代码08子代码01子功能“10（0x000A）清除计数器”
通信系统
数据字段x0000响应：KP3000模块备件控制器请求操作的回声：清除所有错误计数器子功能“11（0x000B）返回总线消息计数”数据字段自上次重新启动、清除计数器操作或通电以来，远程设备已在通信系统上检测到。子功能“12（0x000C）Return Bus Communication Error Count”（返回总线通信错误计数）数据字段0x0000响应：自上次重新启动、清除计数器操作或通电以来，远程设备遇到的错误数量。（CRC，长度<3，奇偶校验，成帧）子函数“13（0x000D）返回总线异常错误计数”数据字段0x0000响应：自上次重新启动、清除计数器操作或通电以来，远程设备返回的MODBUS异常响应的数量。子功能“14（0x000E）Return Slave Message Count”（返回从属消息计数）数据字段0x0000响应：自上次重新启动、清除计数器操作或通电以来，远程设备已处理的寻址到远程设备或广播的消息数量。子功能“15（0x000F）Return Slave No Response Count”数据字段0x0000 Response:自上次重新启动、清除计数器操作或通电以来，发往远程设备的未返回响应（既不是正常响应也不是异常响应）的消息数量。
Communication system
Data field x0000 response: echo of KP3000 module spare controller request operation: clear all error counter subfunctions "11 (0x000B) return bus message count" Data field Since the last restart, clear counter operation or power on, the remote device has been detected on the communication system. Sub function "12 (0x000C) Return Bus Communication Error Count" data field 0x0000 Response: the number of errors encountered by the remote device since the last restart, clear counter operation or power on. (CRC, length<3, parity, framing) subfunction "13 (0x000D) returns the bus exception error count" data field 0x0000 Response: the number of MODBUS exception responses returned by the remote device since the last restart, counter clearing operation, or power on. Sub function "14 (0x000E) Return Slave Message Count" data field 0x0000 Response: The number of messages addressed to the remote device or broadcast that have been processed by the remote device since the last restart, clear counter operation or power on. Sub function "15 (0x000F) Return Slave No Response Count" data field 0x0000 Response: The number of messages sent to remote devices that have not returned a response (neither normal nor abnormal) since the last restart, counter clearing operation or power on.
Software Description
The KP3000 module spare controller continues the software description that it is safer to address and switch each device separately. The device will then reply using the old settings for parity and bit rate. The switch will occur only after. However, if the bus is disturbed, the answer may be lost. When all devices are switched; It is recommended to check the communication. Any function of the device providing feedback is appropriate. If you want to use a single function independent of the process peripherals, Then the function "Diagnosis" subfunction "Return query data" is appropriate, and it returns the transmitted data. If the bit rate and parity settings of the device are unknown, then all combinations of the bit rate and parity can be used to address the device continuously until the device responds. First try the most possible combination. Finally try the lower bit rate, because they take longer. 9.3 General command "08 (0x08) Diagnose" subfunction "0 (0x0000) Return the query data "Any response of data field: echo of requesting subfunction" 1 (0x0001) Restart the communication option "Response of data field 0x0000 or 0xFF00: echo of requesting operation: clear all error counters, restart node subfunction" 4 (0x0004) Force only listening mode "Data field 0x0000 No response Operation: reset at node or function code 08, sub code 01, subfunction" 10 (0x000A) Clear counter "
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