GE GFK-1004B user manual Appendix Soft Switch Parameters, Config Mode

Appendix

C

Soft Switch Parameters

This appendix describes the parameters and settings that may be modified when configuring the Ethernet Interfaces. It also describes the methods for configuring the Ethernet Interface through either the Station Manager or the Logicmastert90-70 Configurator.

The Ethernet Interface has a set of fundamental parameters stored in non-volatile memory (retentive when power is off). This memory is called Electronically Erasable Programmable Read Only Memory (EEPROM). These parameters are maintained indefinitely with or without power. This set of parameters is called ªSoft Switches.º Soft Switches specify basic parameters in software rather than using hardware jumpers or switches. These parameters are required to support the loader and communications software of the Ethernet Interface. Soft Switches are set to default values at the factory that are correct for most LAN installations. Review the values in Table C-1 to determine if the factory default values are appropriate for your network.

Note

TCP/IPparametersIPAddress, Subnet Mask, Gateway IP Address and Name Server IP Address are technically soft switches, but are neither displayable nor changeable with SOSW/CHSOSW nor described in this section.

Config Mode

The Logicmaster 90-70 configuration mode ( set in the Config Mode field) has a major effect on which Soft Switch parameters are in use. When the configuration mode is MMS-ETHERNET, all Soft Switches described here are used. The switches may then be modified using the PLC Programmer or the CHSOSW command. When the configuration mode is TCP/IP, only the Station Address and Network Load Address Software Switches may be modified for the Ethernet Interface. These Software Switches may only be modified using the PLC Programmer; that is, they may not be set using the CHSOSW command. When using TCP/IP configuration mode, other Soft Switches are ªhard-codedº as follows: Load Source is ALT, LAN Online is YES, and Backplane on line is YES.

The MMS-ETHERNET configuration mode is intended for those users who are using:

(a)an Ethernet Interface with PROM version less than 2.00 or

(b)a PLC CPU with firmware version less than 5.03.

The TCP/IP configuration mode is intended for those users who are using

GFK-1004B C-1