DS200SNPAH1ABA

Product Description

The DS200SNPAH1ABA is an SNP Protocol Interface daughterboard.  This is a series 90 protocol (SNP) board.  SNP protocol was the native serial communications protocol that was originally used by all Series 90 programmable logic controllers.  This was a GE FANUC proprietary master-slave protocol.    In many cases, this has been replaced by SNP-X optimized protocols, Genius protocols, or other later GE communication protocols.  However, this original communication protocol allowed communication of any series 90 PLC to another series 90 system via a serial line.   SNP is half-duplex.  It can use either RS-232 or RS-485.   The communications protocol can be deployed as either a multidrop network or as a point-to-point system. 

The DS200SNPAH1ABA daughterboard is a long, narrow rectangle with an attached front faceplate.  The faceplate includes two connection screws and two ports, including one male and one female.  Components are mounted on both the top and bottom of the board’s surface.  The bottom surface includes two additional connectors to plug into the motherboard, along with factory drilled mounting holes.  This side of the board also has a number of resistors and capacitors.  The top side of the board is populated with integrated circuits including FPGAs, jumper switches, and resistors.  Most components are marked with some sort of reference designator and may also carry their original manufacturer part number.  For in-depth information, you can look up the individual datasheet for these parts.  

GE manuals and user guides can provide you with more information regarding the proper handling and how to install this board safely into your system.  Please be sure you read through and understand these directions before beginning any sort of installation or maintenance procedure.