Serial synchronous interface module for motion control, position sensing applications

Opto 22 Snap-SCM-SSI serial module offers a communications interface between digital encoders and Snap PAC System I/P processors or programmable automation controllers; designed for use in motion control and other tracking and identifying applications.


The new Snap-SCM-SSI I/O module from Opto 22 offers a communications interface between digital encoders and Snap PAC System I/O processors or programmable automation controllers. The Snap-SCM-SSI I/O module provides two isolated serial synchronous inputs (SSI) for acquiring data from optical and mechanical encoders and other types of linear and rotary transducers.

Designed for use in motion control and other applications where tracking and identifying the movement and position of machinery or components is critical, the Snap-SCM-SSI connects to and accepts input from either binary or Gray code encoders, allowing the module to process and communicate position-related data from heavy duty industrial machinery and apparatus (such as floodgates, drawbridges, and rotating or elevating platforms) as well as machine tools, stepper motors, servos, and other moving or robotic components.

The Snap-SCM-SSI accomodates an SSI clock frequency of up to 2.5-MHz, functions at cable lengths up to 500-ft, and can be configured for clock frequency, data bits (i.e., encoder resolution), time interval between data samples, and more. The module can be used with both Snap PAC Ethernet (EB-series) and Snap PAC serial (SB-series) I/O processors, standard Snap PAC standalone and rack-mounted controllers, and all Snap PAC Wired+Wireless controllers.

Opto 22

- Edited by Amanda McLeman, Control Engineering,

No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Salary survey: How much are you worth?; Dedicated outdoor air systems; Energy models and lighting
Fire, life safety in schools; Fire protection codes; Detection, suppression, and notification; 2015 Commissioning Giants; Emergency and standby power in hospitals
HVAC and building envelope: Efficient, effective systems; Designing fire sprinkler systems; Wireless controls in buildings; 2015 Product of the Year winners
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Implementing microgrids: Controlling campus power generation; Understanding cogeneration systems; Evaluating UPS system efficiency; Driving data center PUE, efficiency
Optimizing genset sizing; How the Internet of Things affects the data center; Increasing transformer efficiency; Standby vs. emergency power in mission critical facilities
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.