51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
# pip install paho-mqtt
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import json
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import time
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from paho.mqtt import client as mqtt
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BROKER_HOST = "169.254.11.130"
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BROKER_PORT = 1886
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TOPIC = "topic_plc_and_py_for_AXIS"
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# 建議測試用 QoS=1；retain=False
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QOS = 1
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RETAIN = False
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def main():
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client = mqtt.Client(client_id="py_pub_plc_test", protocol=mqtt.MQTTv311)
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# 若 Broker 有帳密、TLS 在這裡設定（目前不需要）
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# client.username_pw_set("user", "pass")
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# client.tls_set(ca_certs="ca.pem") # 若是 TLS
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client.connect(BROKER_HOST, BROKER_PORT, keepalive=60)
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client.loop_start()
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time.sleep(0.3) # 等連線建立
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# ---- 第一組： ----
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payload_forward = {
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"Move_Forward": False, # BOOL
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"Move_Forward_Velocity": 6.2 # REAL (float)
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}
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msg1 = json.dumps(payload_forward, ensure_ascii=False)
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r1 = client.publish(TOPIC, msg1, qos=QOS, retain=RETAIN)
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r1.wait_for_publish()
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time.sleep(3)#第二顆馬達等等再開啟
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# ---- 第二組： ----
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payload_updown = {
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"Move_UPDown": False, # BOOL
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"Move_UPDown_Velocity": 5.1 # REAL (float)
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}
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msg2 = json.dumps(payload_updown, ensure_ascii=False)
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r2 = client.publish(TOPIC, msg2, qos=QOS, retain=RETAIN)
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r2.wait_for_publish()
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time.sleep(0.3)
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client.loop_stop()
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client.disconnect()
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if __name__ == "__main__":
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main()
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