Delta RMC151 - Manual (Page 638)

RMC70/150 and RMCTools User Manual
CPU
Module
Axis
Module
Expansion
Module
CPU Modules
The CPU modules include the main motion control processing unit, the communication
channel such as serial, PROFIBUS, Ethernet, etc. and a monitor port or USB port for
communications to the RMCTools software.
CPU
Module
Description RMCTools Monitor
Port
RMC75E Controller with Ethernet Communications USB
RMC75S Controller with Serial Communications RS-232
RMC75P Controller with PROFIBUS-DP
Communications
RS-232
Comparing the RMC75 CPU Modules
In addition to the communication port and RMCTools monitor port, the RMC75 CPUs differ
in the following ways:
• Monitor Port Speeds
The RMC75E USB port provides a much faster connection to RMCTools, with much
faster plot upload speeds, than does the serial port on the RMC75S and RMC75P.
• Retentive Variables
The RMC75E variables can be set to retentive, meaning that the Current Value will be
retained between power cycles without requiring a Flash update.
• Memory Size
The 75E has significantly more memory for plots, programs, curves. See Plot
Overview, Program Capacity and Time Usage and Curve Storage Capacity for details.
• Loop Times
75E supports faster loop times.
• Internal Processor
The RMC75S and RMC75P internal processors are 32-bit. The RMC75E has some 64-bit
processing capabilities. In practice, the only difference the user will experience due to
this is that some mathematical calculations will produce slightly different results.
Axis Modules
618 Delta Computer Systems, Inc.