GE Series 90-30 PLC

GFK-0356Q Appendix I SNP Multidrop I-5
I
IC690ACC90
Conn. B
Conn. A
Conn. C
Series 90-30 PLC
Series 90-30 PLC
IC690CBL714A Cable
Serial Cable
Figure I-5. Multidrop Arrangement for Series 90-30 Redundant System
Configuring and Connecting a Programmer to a Multidrop Network
Each slave device on a multidrop system must have its own unique SNP ID (identification). The
SNP ID assignment is made with a programmer running GE Fanuc programming software, or with
the Hand Held Programmer. Logicmaster, Control, or Versa Pro software packages all can be used
for this purpose. The following example uses Logicmaster. Please see your software user’s
manual or on-line help screens for instructions. Regardless of what software you use, the basic
steps are:
■ Connect your programmer to each individual PLC or module on the multidrop system and
assign each one a unique SNP ID.
■ Connect your programmer to the multidrop system and select Multidrop for the programmer’s
connection method.
■ In the programming software, select the SNP ID of the PLC or module you wish to connect to.