Omron NX701-1 User Manual

2 Motion Control Configuration and Principles
2-6
NJ/NX-series CPU Unit Motion Control User’s Manual (W507)
*1 You can use the priority-5 periodic task only with NX701 CPU Units.
*2 The multi-motion performs the motion controls in parallel using both the primary periodic task and the priority-5
periodic task.
*3 You cannot use the priority-16 periodic task on NX102 CPU Units and NX1P2 CPU Units.
Note The CPU Unit has priority-17 and -18 periodic tasks. However, you cannot use motion control instructions in
these tasks. These tasks also do not perform I/O refreshing.
Precautions for Correct UsePrecautions for Correct Use
• Motion control instructions can be used in the primary periodic task and in a priority-5 or a pri-
ority-16 periodic task.
• If motion control instructions are used in any other tasks, an error will occur when the user pro-
gram is built on the Sysmac Studio.
Additional Information
The NX701 CPU Unit allows you to execute the motion control in the primary periodic task and in
the priority-5 periodic task. If these two motion controls need to be identified, the motion control
in the primary periodic task is called motion control 1, while the motion control in the priority-5
periodic task is called motion control 2.
Periodic tasks 0 or 1
5
*1
These tasks execute I/O refreshing, programs, and motion
control in the specified task period.
The priority-5 periodic task has the second highest execution
priority after the primary periodic task and can be executed
quickly and precisely.
The priority-5 periodic task is used when you want to divide
functions configuring the deivce for separate control, those
functions that need high-speed control with the primary periodic
task and others with the priority-5 periodic task.
The primary periodic task and priority-5 periodic task are used
for the multi-task motion control.
*2
16
*3
These tasks execute programs and I/O refreshing in the
specified task period. The execution period for this priority-16
periodic task is longer than the execution period of the primary
periodic task and priority-5 periodic task. Therefore, periodic
tasks are used to execute programs.
In the priority-16 periodic task, you can write the user program
for some slaves and Units that refresh I/O in the primary
periodic task.
For example, synchronized control and control requiring a fast
response time are placed in the primary periodic task or
priority-5 periodic task. Overall device control is separately
placed in a priority-16 periodic task.
Type of task
Number of
tasks
Priority Operation

Omron NX701-1 Specifications

General

Brand	Omron
Model	NX701-1
Category	Controller
Language	English