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5
5-19
GFK-1004B
Chapter 5 The Station Manager
In TCP/IP configuration mode, the only permitted use of CHSOSW is CHSOSW MMS
MODE. This changes the configuration mode to MMS-ETHERNET.
The Soft Switch data parameters must be entered as specified above. The parameter
label (mac, ldsrc, lanonline, bponline, ldmac, mms, or pgmr) must precede the new pa-
rameter value.
The <MAC_address> parameter is the station’s working MAC address. This parameter
is entered as a byte string. A value of all 0’s for this parameter means that the perma-
nent globally administered station address (Default Station Address) is used. This pa-
rameter may not be a multicast or a broadcast address. See the section titled “The MAC
Address” in Appendix G.
The <load_source> parameter indicates the source of the communications software
download. This parameter should be one of the ASCII string values shown in the table
below.
Table 5-7. Load Source Parameters
Parameter Value Description
ALT * Alternate between all possible load sources
LOC Load from local serial port
NET Load from network
* Default Value
The <yes_no> parameter indicates whether the Ethernet Interface will initialize and
enter the network or initialize the Backplane Communications with the CPU. This pa-
rameter has a value of YES or NO.
The <load_addr> parameter is the multicast address used by the Ethernet Interface for
network loads. This parameter is entered as a byte string. A value of all 0’s for this pa-
rameter means the default multicast load address <<090060000000>> is used. This
parameter may not be the broadcast address, but must be a multicast address.
The pgmr <enable> parameter defines the type of communications software which can
download the Ethernet Interface. pgmr refers to the communications software down-
loaded by Logicmaster 90 software. <enable> = {dc | req | prhb} defines further
conditions of the download (where dc = Don’t Care, req = Required, prhb = Prohibited.
The default is Don’t Care).
For example, the command “CHSOSW PGMR PRHB” prohibits the Logicmaster 90 Net-
work Utilities from downloading this Ethernet Interface. Only the GSM can download
this Interface. In addition, once the Interface is downloaded, Logicmaster 90-TCP/IP Uti-
lities will be prevented from connecting to this PLC system. Refer also to the Logicmaster
90-TCP/IP Communications User’s Manual, GFK-1029.
The CHSOSW command does not require that every parameter be entered. If a Soft
Switch label/value pair is omitted, one of two results occur depending on the current
Soft Switch data. If the current data is determined to be valid, any parameters that are
not entered are left unchanged. However, if the Soft Switch data is determined to be
invalid, all parameters omitted are set to their respective default values. Default values
are shown in the the table below. At least one parameter label/value pair must be en-
tered.
Using the CHSOSW command with the single parameter “def” causes all Soft Switch
values to be set to their defaults.