Moxa EM-2260-CE [15/39] Supporting servers and daemons

EM-2260-CE User’s Manual Software Configuration

Supporting Servers and Daemons

In addition to the development and communication capability, EM-2260 embeds the services and

daemons as stated next. These common and easy-to-use application servers help users to migrate

the EM-2260 embedded computer to the industrial communication application very easily and

conveniently.

y Telnet Server - A sample server that allows remote administration through a standard telnet

client.

y FTP Server - A sample server used for transferring files to and from remote computer systems

over a network using TCP/IP.

y File Server - The File Server functionality in Microsoft Windows CE enables clients to access

files and other resources over the network.

y Web Server (HTTPD) - Includes ASP, ISAPI Secure Socket Layer support, SSL 2, SSL 3, and

Transport Layer Security (TLS/SSL 3.1) public key-based protocols, and Web Administration

ISAPI Extensions.

y Dial-up Networking - Consists of RAS client API and the Point to Point Protocol (PPP). RAS

and PPP support Extensible Authentication Protocol (EAP) and RAS scripting.

y Watchdog Service – It’s a CPU Hardware function for reset CPU in a user specified time

interval. You must call the MOXA library function to trigger it.

Memory and File Systems

From the 128M bytes of SDRAM space, the main memory has a capacity of about 112M bytes in

which the operating system and user applications run. The kernel image occupies the rest of the

space.

The internal file system in the EM-2260 computer controls access to ROM and also provides file

storage in the object store, which is in the RAM. The ROM file system provides persistent storage

for applications and their related data even when the main power supply is lost. In the EM-2260

computer, a child directory named “NORFlash” under the root indicates the ROM storage of the

flash memory of size 12M bytes.

The root directory is a RAM file system of size 50M bytes. You could adjust this size by using the

“Control Panel\system”. It can be used for storing temporary files for your applications.

However, do not place persistent files or applications in the root directory because they will be

wiped out when the system is shutdown. Instead, place them under the directory “NORFlash”.

The additional file systems on USB and CompactFlash storage devices are placed at the root of the

internal file system. If you intend to use these devices to port data between your PC and the

EM-2260 computer, please format them as the FAT file system on your PC.

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