The Analog I/O Option Board allows inputs from devices such as variable resistors, process-control
sensor, and inverter control.
l
Battery-free Operation
The following data (other than the clock data) is retained in the built-in non-volatile memory.
• User program
•
Set values
• Variables retained during power interruption
• Event logs
The retention period for the clock data is limited
*1
.
When the clock data is not needed or the equipment’s power OFF time is shorter than the clock
data retention period, the battery-free operation is possible and man-hours for battery replacement
can be reduced.
If you turn OFF the power supply to the equipment for a longer period of time than the clock data
retention period, mount a battery which is sold separately.
*1. Approximately 10 days at an ambient temperature of 40°C. Refer to 3-1-5 Battery on page 3-18 for detail.
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Standard-feature SD Memory Card Slot
You can access an SD Memory Card that is mounted in the CPU Unit from the user program.
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Highly Reliable Hardware
The NX-series Controllers provide the hardware reliability and RAS functions that you expect of a
PLC.
Software Features
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Integrated Sequence Control and Motion Control
An NX-series CPU Unit can perform both sequence control and motion control. You can simultane-
ously achieve both sequence control and multi-axes synchronized control. Sequence control, mo-
tion control, and I/O refreshing are all executed in the same control period.
The same control period is also used for the process data communications cycle for EtherCAT
. This
enables precise sequence and motion control in a fixed period with very little deviation.
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Programming Languages Based on the IEC 61131-3 International Standard
The NJ-series Controllers support language specifications that are based on IEC 61131-3. To
these, OMRON has added our own improvements. Motion control instructions that are based on
PLCopen
®
standards and an instruction set (POUs) that follows IEC rules are provided.
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Programming with Variables to Eliminate Worrying about the Memory Map
You access all data through variables in the same way as for the advanced programming languag-
es that are used on computers. Memory in the CPU Unit is automatically assigned to the variables
that you create so that you do not have to remember the physical addresses.
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A Wealth of Security Features
The many security features of the NX-series Controllers include operation authority settings and re-
striction of program execution with IDs.
1 Introduction to NX-series Controllers
1-4
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
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