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Getting Started
2.3.1 DHCP
The unit ships with a default IP address of 0.0.0.0, which automatically enables DHCP.
Provided a DHCP server exists on the network, it will assign the unit an IP address, gateway
address, and subnet mask when the unit boots up. The XPress DR has acquired an IP address
if the red LED stops flashing and the green Status LED is on continuously. (If no DHCP
server exists, the unit responds with a diagnostic error: the red Diagnostic LED blinks
continuously, and the green Status LED blinks five times. This blinking only continues for
about 15 seconds.)
You can use the DeviceInstaller software to search the network for the IP your unit has been
assigned by the DHCP server and add it to the managed list. See Add the Unit to the Manage
List later in this chapter.
Note: This DHCP address will not appear in the unit’s standard configuration screens. You
can determine your unit’s DHCP-assigned IP address from the DHCP server, or in Monitor
Mode. When you enter Monitor Mode from the serial port with network connection enabled
and issue the NC (Network Communication) command, you will see the unit’s IP
configuration.
2.3.2 AutoIP
The unit ships with a default IP address of 0.0.0.0, which automatically enables Auto IP
within the unit. AutoIP is an alternative to DHCP that allows hosts to automatically obtain an
IP address in smaller networks that may not have a DHCP server. A range of IP addresses
(from 169.254.0.1 to 169.254.255.254) has been explicitly reserved for AutoIP-enabled
devices. The range of Auto IP addresses is not to be used over the Internet.
If your unit cannot find a DHCP server, and you have not manually assigned an IP address to
it, the unit automatically selects an address from the AutoIP reserved range. Then, your unit
sends out a (ARP) request to other nodes on the same network to see whether the selected
address is being used.
• If the selected address is not in use, then the unit uses it for local subnet communication.
• If another device is using the selected IP address, the unit selects another address from the
AutoIP range and reboots itself. After reboot, the unit sends out another ARP request to see if
the selected address is in use, and so on.
AutoIP is not intended to replace DHCP. The unit will continue to look for a DHCP server on the
network. If a DHCP server is found, the unit will switch to the DHCP server-provided address and
reboot.
Note: If a DHCP server is found, but it denies the request for an IP address, the unit does not
attach to the network, but waits and retries.
AutoIP can be disabled by setting the unit’s IP address to 0.0.1.0. This setting enables DHCP but
disables AutoIP.
DSTni-XPress DR User Guide 2-5
- DSTni-XPress DR 1
- User Guide 1
- Copyright and Trademark 3
- Disclaimer and Revisions 4
- Declaration of Conformity 5
- Warranty 6
- Sales Offices 7
- Contents 10
- List of Figures 12
- List of Tables 13
- 1.1 DSTni-XPress DR 15
- Introduction 16
- PLC's XPress DR-IAP 17
- 1.4 Serial Interface 19
- 1.5 RJ-45 Serial Connector 20
- 1.7 RJ-45 Ethernet Interface 22
- 1.9 Front Panel Description 25
- 1.10 LEDs 27
- 1.11 Dimensions 28
- 1.13 Power Requirements 29
- 1.14 Reset Switch 29
- 1.15 RS-232/RS-485 Switch 30
- Table 7 - Technical Specs 31
- Getting Started 33
- 2.1.3 Port Number 34
- 2.3.1 DHCP 37
- 2.3.2 AutoIP 37
- 2.4 DeviceInstaller 38
- 2.4.3 Test the IP Address 40
- 2.5 ARP and Telnet 44
- 2.6 Serial Port Login 45
- Configure 47
- 3.2 Using DeviceInstaller 48
- 3.3 Web Manager Page 50
- 3.3.1 Unit Configuration 51
- 3.3.2 Server Properties 52
- 3.3.3 Port Properties 53
- 3.3.4 Update Settings 55
- 3.3.5 Technical Support 55
- 3.4.2 Using the Serial Port 58
- 3.5.1 IP Address 58
- 3.5.5 DHCP Naming 60
- 3.6.1 Baudrate 61
- 3.6.2 I/F (Interface) Mode 61
- 3.6.3 Flow 62
- 3.6.4 Port Number 63
- 3.6.5 Connect Mode 64
- 3.6.6 Remote IP Address 67
- 3.6.7 Remote Port 67
- 3.6.8 DisConnMode 67
- 3.6.10 Pack Control 69
- 3.6.12 Send Characters 70
- 3.6.13 Telnet Terminal Type 70
- 3.7 Expert Settings 71
- 3.8 Security Settings 71
- 3.9 Factory Defaults 73
- 3.11 Get Configuration 73
- 3.12 Set Configuration 74
- 4.1 Protocol Firmware 75
- 4.2.1 Via DeviceInstaller 76
- Firmware 77
- 4.2.2 Via TFTP 79
- 4.2.3 Via Another Unit 79
- 4.2.4 Via the Serial Port 80
- 5.1 Overview 81
- Comm Port Redirector 82
- 5.3 Using Redirector 83
- 5.3.1 Port Setup 84
- 5.3.2 Comm App Setup 84
- 5.3.5 Port Settings 86
- 5.3.6 Listen Mode 86
- 5.3.7 Silent Mode 87
- 5.3.8 TCP Keepalive 87
- 6.1 Technical Support 89
- Troubleshooting 90
- 7.1 Monitor Mode 95
- 0> OK; no error 96
- 8> Wrong parameter(s) 96
- 9> Invalid command 96
- 8.1 UDP Datagrams 97
- 8.2.2 Sending a Setup Record 100
- 8.2.3 The Intel Hex Format 101
- 0300300002337A1E 102
- 8.3 Setup Records 103
- 8.3.1 Channel Parameters 104
- 8.3.2 Interface Mode 105
- 8.3.3 Baud Rate 106
- 8.3.4 Flow Control 106
- 8.3.5 Connect Mode 107
- 8.3.6 Disconnect Mode 108
- 8.3.8 Pack Control 109
- 8.4 IP Addresses 110
- 8.4.3 Host Portion 111
- 8.4.4 Network Address 111
- 8.4.5 Broadcast Address 111
- 8.4.7 Network RFCs 112
- 9.1 Connect Mode Options 114
- Binary to Hex 115
- 9.2 Disconnect Mode Options 117
- 9.4 Interface Mode Options 126
- 9.5 Pack Control Options 127
- 10.1 Class A Network 129
- 10.2 Class B Network 129
- 10.3 Class C Network 129
- 10.4 Network Address 130
- 10.5 Broadcast Address 130
- 10.6 IP Netmask 130
- 10.8 Network RFCs 131
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