DL-100S-E / DL-101S-E / DL-110S-E / DL-120-E User Manual Version 1.2.0 Jun 2023
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Item
Factory Default
IP address type
Static IP
Static IP
192.168.255.1
Default gateway
192.168.0.1
Subnet Mask
255.255.0.0
MAC address
Factory MAC address
Modbus TCP port
502
Modbus TCP NetID
1
Modbus TCP NetID
Enabled
System Timeout
0 (disabled)
TCP Timeout
180 seconds
Web auto logout
10 minutes
Alias name
EtherIO
Accessible IP
Disabled
The Update button is used to update firmware for DL-100S-E. For details regarding firmware
update, please refer to the section 7. FAQ Q4.
3.5 MQTT
MQTT stands for MQ Telemetry Transport, it is a publish/subscribe, extremely simple
and lightweight messaging protocol, designed for constrained devices and
low-bandwidth, high-latency or unreliable networks.
The Publish-Subscribe messaging pattern requires a message broker. The broker is
responsible for distributing messages to interested clients based on the topic of a
message. Now the MQTT Version 3.1.1 becomes an OASIS standard, it is an ideal
protocol for communicating with connected devices in the emerging
"machine-to-machine" (M2M) and "Internet of Things" applications, and for mobile
applications where bandwidth and battery power are at a premium.