Chapter 7: Appendix
DTM temperature controller operating manual
1. Device name
There can be many DTMEXX cards on the network. Therefore, you can set up a device name for the
module to be controlled to identify it when you need to search for it.
2. Network setup
（1）IP Configuration:
There are 2 types of IP configuration: Static IP and DHCP.
Static IP: Preset or manually modified by the user.
DHCP: Automatically updated by the server. There has to be a server on the LAN.
The user manually enters the IP address, netmask and
The polled DHCP offers the IP address, netmask and
（2）IP address:
IP address is the location of equipment on the network. Every equipment connected to the network
has to have an IP address. Incorrect IP address will result in connection failure. Consult you ISP for
how to set up the IP address. The default IP for DTMEXX is 192.168.1.5.
（3）Netmask:
Netmask is an important parameter for setting up the subnet, used for seeing if the destination IP
and local equipment are in the same subnet. If not, the equipment will send the packet to the
gateway, and the gateway will send the packet to another subnet. Incorrect setting may cause the
destination equipment unable to communicate to DTMEXX. To see if your setting is correct, conduct
bitwise AND operations between your IP and netmask and destination IP and netmask. If the two
values obtained are the same, the two IPs are in the same subnet. The default netmask of
DTMEXX is 255.255.255.0.
（4）Gateway:
Gateway is the window for two different subnets, allowing two equipments in different subnets to
communicate with each other. For example, if the LAN has to be connected to the WAN, it will need
a gateway to bridge the communication. The IP of the gateway has to be in the same subnet as
DTMEXX. The default gateway of DTMEXX is 192.168.1.1.
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