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Moxa DA-683-SP-LX [5/96] Introduction
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1
1. Introduction
Thank you for purchasing a Moxa DA-683 x86 ready-to-run embedded computer. This manual introduces the
software configuration and management of the DA-683-LX, which runs the Linux operating system. For
hardware installation, connector interfaces, setup, and upgrading the BIOS, please refer to the “DA-683
Hardware User’s Manual.”
Linux is an open, scalable operating system that allows you to build a wide range of innovative, small footprint
devices. Software written for desktop PCs can be easily ported to the Linux computer with a GNU cross compiler
and a minimum of source code modifications. A typical Linux-based device is designed for a specific use, and
is often not connected to other computers, or a number of such devices connect to a centralized, front-end host.
Examples include enterprise tools such as industrial controllers, communications hubs, point-of-sale terminals,
and display devices, which include HMIs, advertisement appliances, and interactive panels.
The following topics are covered in this chapter:
Overview
Software Specifications
Software Components
Содержание
- Da 683 series linux user s manual 1
- Fourth edition august 2012 1
- Www moxa com product 1
- Copyright notice 2
- Da 683 series linux user s manual 2
- Disclaimer 2
- Technical support contact information 2
- Trademarks 2
- Www moxa com support 2
- Introduction 5
- Attention 6
- Device driver 6
- Hardware 6
- Linux kernel 6
- Micro kernel 6
- Overview 6
- Protocol stack 6
- Software specifications 6
- Da 683 lx introduction 7
- Software components 7
- Software configuration 8
- Da 683 lx software configuration 9
- Starting from a vga console 9
- The read only file system 9
- Connecting from a telnet console 10
- Da 683 lx software configuration 10
- Adjusting the system time 11
- Connecting from an ssh console 11
- Da 683 lx software configuration 11
- Linux users 11
- Windows users 11
- Da 683 lx software configuration 12
- Ntp client 12
- Setting the time manually 12
- Attention 13
- Ptp slave 13
- Updating the time automatically 13
- Da 683 lx software configuration 14
- Enabling and disabling daemons 14
- Da 683 lx software configuration 15
- Da 683 lx software configuration 16
- Cron daemon for executing scheduled commands 17
- Da 683 lx software configuration 17
- Moxa rm f etc rc2 d s60tcps2 17
- Setting the run level 17
- Da 683 lx software configuration 18
- Inserting a usb storage device into the computer 18
- Apt installing and removing packages 19
- Attention 19
- Checking the linux version 19
- Da 683 lx software configuration 19
- Inserting a compact flash card 19
- Attention 20
- Da 683 lx software configuration 20
- Attention 21
- Da 683 lx software configuration 21
- Device suspend 21
- Da 683 lx software configuration 22
- Wake on lan 22
- Managing communications 23
- Attention 24
- Changing the interfaces configuration file 24
- Changing the network settings 24
- Detecting network interfaces 24
- Static ip address 24
- Adjusting ip addresses with ifconfig 25
- Da 683 lx managing communications 25
- Dynamic ip address using dhcp 25
- Telnet ftp server 25
- Da 683 lx managing communications 26
- Disabling the telnet tftp server 26
- Dns client 26
- Enabling the telnet tftp server 26
- Etc hostname 26
- Da 683 lx managing communications 27
- Etc nsswitch conf 27
- Etc resolv conf 27
- Apache web server 28
- Default homepage 28
- Disabling the cgi function 28
- To edit the configuration file 28
- Attention 29
- Da 683 lx managing communications 29
- Saving web pages to a usb storage device 29
- To edit the configuration file 29
- Uncompres 29
- Writin 29
- Attention 30
- Da 683 lx managing communications 30
- Da 683 lx managing communications 31
- Filter table includes three chains 31
- Iptables 31
- Mangle table includes two chains 31
- Nat table includes three chains 31
- Process 31
- Sub tables 31
- Da 683 lx managing communications 32
- Iptables hierarchy 32
- Iptables modules 32
- Attention 33
- Da 683 lx managing communications 33
- Observe and erase chain rules 33
- To maintain the database 33
- Append or delete rules 34
- Da 683 lx managing communications 34
- Define policy for chain rules 34
- Attention 35
- Nat example 35
- Nat network address translation 35
- Da 683 lx managing communications 36
- Enabling nat at bootup 36
- Ppp point to point protocol 36
- Attention 37
- Connecting to a ppp server over a simple dial up connection 37
- Da 683 lx managing communications 37
- Log in with username and password 37
- Checking the connection 38
- Connecting to a ppp server over a hard wired link 38
- Da 683 lx managing communications 38
- Da 683 lx managing communications 39
- Setting up a machine for incoming ppp connections 39
- Attention 40
- Da 683 lx managing communications 40
- And add the following 41
- Da 683 lx managing communications 41
- Edit the file 41
- Da 683 lx managing communications 42
- Attention 43
- Da 683 lx managing communications 43
- Nfs network file system client 43
- Snmp simple network management protocol 43
- Attention 44
- Ethernet bridging for private networks on different subnets 44
- Openvpn 44
- Da 683 lx managing communications 45
- Attention 46
- Da 683 lx managing communications 46
- Da 683 lx managing communications 47
- Ethernet bridging for private networks on the same subnet 47
- Da 683 lx managing communications 48
- Routed ip 48
- Da 683 lx managing communications 49
- Programmer guide 50
- Da 683 lx programmer guide 51
- Define dio_error_port 1 no such port define dio_error_mode 2 no such mode or state define dio_error_control 3 open or ioctl fail define dio_error_duration 4 the value of duration is not 0 or not in the range 40 duration 3600000 milliseconds 1 hour define dio_error_duration_20ms 5 the value of duration must be a multiple of 20 ms define dio_ok 0 51
- Define dio_high 1 define dio_low 0 51
- Digital i o 51
- Rtc real time clock 51
- Da 683 lx programmer guide 52
- Da 683 lx programmer guide 53
- Examples 53
- How the wdt works 53
- Important 53
- Introduction 53
- The user api 53
- Wdt watch dog timer 53
- Attention 54
- Da 683 lx programmer guide 54
- Examples 54
- Da 683 lx programmer guide 55
- Dev pled 55
- Moxa lsmod grep moxa_pled moxa_pled 2464 0 55
- Moxa modprobe moxa_pled moxa lsmod grep moxa_pled moxa_pled 2464 0 55
- Programmable leds 55
- System recovery 56
- Da 683 lx software components 57
- Hardware 57
- Recovery environment 57
- Recovery procedure 57
- Step 1 prepare your usb drive 57
- Da 683 lx software components 58
- Da 683 lx software components 59
- Step 2 change the bios settings 59
- Da 683 lx software components 60
- Da 683 lx software components 61
- Step 3 restore the system from usb drive 61
- Da 683 lx software components 62
- Da 683 lx software components 63
- Da 683 lx software components 64
- Step 4 change the bios settings to boot from the original disk 64
- Da 683 lx software components 65
- Saving the system to the usb drive 65
- Step 5 reboot the computer 65
- Da 683 lx software components 66
- Da 683 lx software components 67
- A software components 68
- Software components 68
- Da 683 lx software components 69
- Da 683 lx software components 70
- Da 683 lx software components 71
- Da 683 lx software components 72
- Da 683 lx software components 73
- Da 683 lx software components 74
- Da 683 lx software components 75
- Da 683 lx software components 76
- Da 683 lx software components 77
- Da 683 lx software components 78
- Da 683 lx software components 79
- Da 683 lx software components 80
- Da 683 lx software components 81
- Da 683 lx software components 82
- Da 683 lx software components 83
- B ieee 1588 configuration 84
- Ieee 1588 configuration 84
- Configuration of ptp settings 85
- Da 683 lx ieee 1588 configuration 85
- Getting started 85
- Da 683 lx ieee 1588 configuration 86
- Wizard settings 86
- Da 683 lx ieee 1588 configuration 87
- Basic settings 88
- Da 683 lx ieee 1588 configuration 88
- Da 683 lx ieee 1588 configuration 89
- Interface 89
- Synchronization 89
- Advanced settings 90
- Da 683 lx ieee 1588 configuration 90
- Foreign master 90
- Da 683 lx ieee 1588 configuration 91
- E2e interval setting 91
- P2p interval setting 91
- Da 683 lx ieee 1588 configuration 92
- Multicast ttl setting 92
- Ptpd domain setting 92
- Clock filter setting 93
- Da 683 lx ieee 1588 configuration 93
- Mode setting 93
- Da 683 lx ieee 1588 configuration 94
- Delay filter setting 94
- Pid servo setting 94
- Da 683 lx ieee 1588 configuration 95
- Delay filter stiffness setting 95
- Monitoring 95
- Attention 96
- Da 683 lx ieee 1588 configuration 96
- Enabling the da fx04 fiber lan module 96
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