DL-100-E / DL-101-E / DL-110-E / DL-120-E User Manual Version 1.1.3 Dec 2020
- 25 -
default values.
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-100-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.
