To enable the secure download or to set the FTP mode, select the related option in
the Node tab of the NK8237 node. If enabled, the secure download makes use of
the TCP port 20500 instead of the ports 20 and 21 required by FTP.
9.9.1 Verifying the connection to the NK8237 unit
The download requires that the TCP/IP connection between the host PC and the
unit works properly. To check the connection, when required by the download
configuration procedures, proceed as follows:
1. Run the Command Prompt.
From the Start menu:
Start > Programs > Accessories > Command Prompt
The Command Prompt window displays.
2. Type:
ping n.n.n.n
where n.n.n.n is the 4-number IP address of the unit. Then press ENTER.
3. Analyze the reply message.
– If the IP connection is good, the message text will look like the following:
Reply from n.n.n.n: bytes=… time… TTL=…
– If the IP connection is not working for any reason, different messages may
display (Request timed out, Destination net unreachable, and so on). In
these cases, verify the network settings and cabling and try again.
9.9.2 NK8237 configuration download
The NK8237 configuration download procedure includes:
⚫ Verifying the connection [➙ 59] to the NK8237 unit.
⚫ Downloading the configuration file.
Downloading the configuration file
1. Right-click the NK8237 node.
2. Select Node Commands > Download Configuration File.
The download procedure starts.
After the download, the NK8237 unit stops and then reboots. The restart phase is
monitored by the Composer tool.
9.9.3 NK8237 firmware download procedure
The NK8237 firmware download procedure includes:
⚫ Configuring the network infrastructure.
⚫ Verifying the connection to the NK8237 unit (see Verifying the connection to
the NK8237 unit [➙ 59].)
⚫ Downloading the firmware file and (if required) a new configuration file.
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