1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

626 Protocol ConfigurationEthernet Configuration ParametersParameter Options ProgrammingSoftware DefaultSubnet Mask0…255 in each field.Used by the processor to interpret IP addresses when the Internet is divided into subnets. The subnetmask must be specified. You can do this either manually or by enabling BOOTP or DHCP.0.0.0.0GatewayAddressDefaultDomainNamePrimaryName ServerSecondaryName ServerNetwork LinkIDBootp EnableThe processor compares and screens addresses using the mask to identify its own address to see if itshould listen to corresponding messages. The comparison occurs in binary. Any address position forwhich the mask is set to a binary 1 will be compared; any address position for which the mask is setto a binary 0 will be ignored. For example, if the mask is 255.255.255.0 the processor will listen to alladdresses whose first three segments match its own address regardless of the value in the lastsegment. (255 in decimal equals to 1111 1111 in binary.)1…254 in each field.The IP address of the gateway that provides a connection to another IP network. This field is requiredwhen you communicate with other network devices, not on a local subnet.The default domain name can have the following formats:’a.b.c’, ’a.b’ or ’a’, where a, b, c must start with a letter, end with a letter or digit, and have as interiorcharacters only letters, digits or hyphens. Maximum length is 63 characters.This is the IP address of the computer acting as the local Ethernet network Primary Domain NameSystem (DNS) server.This is the IP address of the computer acting as the local Ethernet network Secondary Domain NameSystem (DNS) server.0…199.The Link ID assigned to the MicroLogix 1400 either by an RSLinx OPC topic or by the routing table ina 1756-DHRIO or 1756-DH485 module.enabled, disabledCheck this box to enable Bootp. If enabled, this causes the processor at power up to try to obtain itsnetwork-related parameters (IP address, subnet mask, gateway address, etc.) via BOOTP request.You can not manually change the IP address if BOOTP is enabled. If you disable BOOTP make surethat you have an IP address specified. If you change this field from enabled to disabled, the changewill take effect only when the system is restarted. If BOOTP is enabled, DHCP will be automaticallydisabled.0.0.0.0NULL0.0.0.00.0.0.001 (enabled)DHCP EnableNote: If BOOTP is enabled, you must have the BOOTP server running at all times because theprocessor requests its address to the BOOTP server at any time during its power up.enabled, disabled.DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to client stationslogging onto a TCP/IP network. There is no need to manually assign permanent IP parameters. DHCPis only available when BOOTP is disabled.0 (disabled)Publication 1766-RM001A-EN-P - October 2008