10 SM-Applications Modules & Motion Processors User Guide
Issue Number: 4
2 Introduction
2.1 Features for Different Module Variants
Modern variable speed drives offer a multitude of in-built features such as ramp control,
PID loops, simple position control, etc. However this functionality is limited. The drive
can only do so many things and when it comes to controlling more complex
applications, users often have to resort to using external equipment such as PLCs to
control the drive from a system point of view.
However the flexibility of certain drives can be substantially increased by using the
Second Processors. These Second Processors provide an additional processor for the
drive and allow the user to utilise existing, or write their own, application-specific
software. They also offer powerful networking capabilities so many drives (and other
equipment) can be connected together to communicate process wide information thus
offering a complete application solution. The Second Processors are solutions modules
that can be fitted to expansion slots in the supported drives or are embedded in the
Digitax drives. The Second Processor are powered from the drive’s internal power
supply
Specifications for SM-Applications
• High speed dedicated microprocessor
• 384 kb Flash memory for user program
• 80 kb user program memory
• EIA-RS485 port offering ANSI, Modbus-RTU slave and master and Modbus-
ASCII slave and master protocols
• CTNet high speed network connection offering up to 5 Mbit/s data rate.
• Two 24V digital inputs
• Two 24V digital outputs
• Task based programming system allowing for real-time control of drive and
process
•CTSync
Specifications for SM-Applications Lite
• High speed dedicated microprocessor
• SyPTLite 10 kb executable memory
• SyPTPro V2.3.1 or later 384 kb executable memory, 80 kb user memory.
• SyPTPro V2.2.0 150 kb executable memory, 20 kb user memory.
• Versions prior to V2.2.0 100 kb executable memory, 20 kb user memory.
• Task based programming system allowing for real-time control of drive and
process.
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