OPC UA I/O Series User Manual V4.0 – ICP DAS
83
JSON Format:
Not Enable
(message is sent in singly):
MQTT Setting > Client Setting - Publish & Subscribe (JSON Format:
Enable)
Details
Check “Unfold” to display all fields.
Channel
The I/O channel name of the hardware.
Publish Topic
The topic of sending data / publishing message.
Publish QoS
The publish Qos (Quality of Service) levels. Default: 2
0: Delivering a message at most once.
1: Delivering a message at least once.
2: Delivering a message at exactly once.
Subscribe Topic
The topic of receiving data / subscribing message. It can copy the
Publish Topic of linked device.
Subscribe QoS
The subscribe Qos (Quality of Service) levels. Default: 2
0: Delivering a message at most once.
1: Delivering a message at least once.
2: Delivering a message at exactly once.
Retain
Set up if the Broker retains the message. Check “Retain” box of the top
row can store the broker message for all variables in list.
Save
Click to save the setting of this page.
Содержание U-7500 Series
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