What is the Difference in SNP and SNPX Protocol For GE Fanuc PLC's?Primary Software: LookoutPrimary Software Version: 5.0 Primary Software Fixed Version: N/A Secondary Software: N/A
Problem: I plan to communicate to a GE Fanuc PLC which specifies that communication is done via the SNP protocol. In Lookout or IA OPC Servers, National Instruments provides the SNPX object for use. What is the difference in SNP and SNPX and can SNPX be use with GE fanuc PLC's? Solution: SNP stands for Series Ninety Protocol and was design for use with the GE Fanuc series 90 family of Programmable Logic Controllers(PLC's). The protocol is used while programming and communicating with the PLC and it supports master and slave modes of operation over RS-232, RS-422, and RS-485. SNPX stands for Series Ninety Protocol Express and is a highly optimized version of the SNP Protocol. It's benefits include faster data transfer, especially across a multi-drop, RS-485 network. Lookout and IA OPC servers support the SNPX protocol, but not the SNP protocol. Related Links: KnowledgeBase ID 2FSAQM9O: Which Lookout Driver Object Do I Need to Use to Communicate with a GE Fanuc 90-30/70 PLC Using the CCM protocol ? KnowledgeBase ID 3RBE5BDS: Connecting With A GE Fanuc Using The Server Explorer KnowledgeBase ID 0Z97GFM4: How do you perform block writes to a GE-Fanuc PLC in Lookout? Attachments:
Report Date: 04/23/2003 Last Updated: 01/18/2007 Document ID: 2WMH9O2P |
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