The SNAP-SCM-SSI I/O module
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
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 accommodates
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) and time interval between data samples. 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(tm) controllers.
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