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In ISP mode, you can upgrade the firmware of EZL-80c. Follow the sequence as
describe below.
1.
Run wflash program in the PC.
2.
Select a firmware to download by pushing the [Download] button.
3.
With no LAN card inserted, connect EZL-80c and the PC by a serial cable and apply
power.
4.
Apply power and the firmware will be automatically downloaded.
6.5.
Normal Communication Mode
This is the normal communication mode of EZL-80c as designed for its purpose.
When you apply power to an EZL-80c product with the LAN card inserted, It will
initiates normal communication mode.
In normal communication mode are available four communication modes, T2S, ATC,
COD and U2S, as shown in the table below.
Comm.
Mode
Protocol
Connection
Type
S/W
Modification
Parameter change
through the serial
port
Topology
T2S
TCP
Passive
Not needed
No
1:1
ATC
TCP
Active/Passive
Needed
Possible
1:1
COD
TCP
Active
Not needed
No
1:1
U2S
UDP
No connection
Not needed
No
N:M
TCP is a protocol that requires a connection process. Connection always takes place a
one-to-one basis. A host waiting for connection (passive connection) is called a server,
and one attempting to make a connection (active connection) is called a client.
On the other hand, UDP communicates by the block without the process of connection,
and thus allows multiple hosts to communicate simultaneously.
For detailed operation modes, refer to the next chapter.
