Python TCP客户端连接到伺服电机

Question

我有一个伺服电机通过以太网连接到我的计算机。我正试图用Python编写一个TCP客户机来连接它，并通过字符串发送命令。例如，发送字符串“？90.1”应提示设备返回参数数组。我目前的问题是，我不确定我是否正在建立连接，或者设备是否正在接收任何消息。我已经验证了正确的IP地址和端口

这是我目前的代码：

import socket
import sys

# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Connect the socket to the port where the server is listening
server_address = ('192.168.12.61', 10001)
print("Connecting to {}".format(server_address))
sock.connect(server_address)

try:
    # Initial test to see if connection has been made. Will send ?90.1
    message = str.encode("?90.1")
    print("Sending message {}".format(message))
    sock.sendall(message)

    # Look for response. Expected response is K-parameters
    data = sock.recv(32)
    print("Received {}".format(data.decode()))

finally:
    print("Closing socket")
    sock.close()

以下是输出：

(CMController) C:\Users\Andy\PycharmProjects\CMController>python CMController.py
Connecting to ('192.168.12.61', 10001)
Sending message b'?90.1'
Received ?90.1
Closing socket