如何在两台PC之间连接Twincats？

Question

测试连接时，我遇到了一个错误：

target pc

1. 运行Windows
2. 运行Windows和PLC
3. target_pc_id =“ 144.214.174.72”和target_ams_id =“ 169.254.42.168.1.1.1”

>

1. 运行Windows

2. 运行twincat3

3. client_pc_id =“ 144.214.174.69”和client_ams_net_id =“ 144.214.174.69.1.1”

我已经使用twincat在目标PC上设置了路由。这是我在客户端PC上的Python脚本：

import pyads
TARGET_AMS_ID = "169.254.42.168.1.1"
TARGET_PC_ID = "144.214.174.72"
plc = pyads.Connection(TARGET_AMS_ID, 851, TARGET_PC_ID)
plc.open()
print("state",plc.read_state())

但是发生了错误：

Traceback (most recent call last):
  File "C:/Users/xxwan/Desktop/py_keypoint/test_plc.py", line 14, in <module>
    print("state",plc.read_state())
  File "C:\Users\xxwan\AppData\Local\conda\conda\envs\tensorflow-gpu\lib\site-packages\pyads\connection.py", line 237, in read_state
    return adsSyncReadStateReqEx(self._port, self._adr)
  File "C:\Users\xxwan\AppData\Local\conda\conda\envs\tensorflow-gpu\lib\site-packages\pyads\pyads_ex.py", line 510, in adsSyncReadStateReqEx
    raise ADSError(error_code)
pyads.pyads_ex.ADSError: ADSError: target machine not found    Missing ADS routes (7). 

我是否需要在客户端PC上添加路由（类似于目标PC上的路由）？顺便说一句，如何在目标PC上获取实际端口号？