GE 90-30 PLC Series Installation And Hardware Manual page 422

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Assigning a PLC SNP ID to a PLC with Logicmaster
Connecting your Logicmaster Programmer to a PLC on a Multidrop System
I-6 Series 90-30 PLC Installation and Hardware Manual – August 2002
Take your programmer to the first PLC to be assigned, and connect directly to its programmer
port.
From the Logicmaster Main Menu, select F2, "Logicmaster 90 Configuration Package."
Select F2, "CPU Configuration."
Put the software in the ONLINE mode.
Select F3, "Assign PLC ID." On the ASSIGN PLC ID screen, the CURRENT PLC ID field
will display an ID if the PLC has one. If the PLC does not currently have an SNP ID, this field
will be blank. (In the OFFLINE mode it will display a series of asterisks.)
Key in the new PLC ID. For newer CPUs, it may be from one to seven alpha-numeric
characters long. For older CPUs, it is limited to a maximum of six characters. For example, it
could be PLC , APM00 , A , B0000 , etc.
Press the Enter key. The new SNP ID will be written to the PLC and the CURRENT PLC ID
field on your screen will update to show this new SNP ID.
Repeat the above steps for each PLC that is on the multidrop system. If assigning an SNP ID
to a module, you must use the appropriate software. See the user's manual for the module for
instructions.
Connect your programmer to the programmer connection for the multidrop system.
From the Logicmaster Main Menu, select F2, "Logicmaster 90 Configuration Package."
Select F7, "Programmer Mode and Setup."
Select F3, "Select PLC Connections."
In the SELECTED SNP ID field, enter the SNP ID of the PLC or device you wish to
communicate with.
In the PORT CONNECTION field, select MULTIDROP.
Press F6, "setup," to connect to the selected PLC. You should connect to the selected PLC
within a few seconds. If you cannot connect, see the next section.
GFK-0356Q