Omron NX Series Reference Manual

Appendices
A - 6
NX-series Data Reference Manual (W525)
A-3 Specific Values of NX Units for Perfor-
mance Calculation
This section describes the specific values of NX Units used for calculating the I/O response times of NX
Units connected to the CPU Unit and the process data communications performance of EtherCAT
Slave Terminals.
Refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No. W501-E1-16 or later) for details
on the I/O response times of NX Units connected to the CPU Unit.
Refer to the user’s manual for the connected Communications Coupler Unit for details on calculating
the process data communications performance of Slave Terminals.
Refer to the user's manuals for the individual NX Units for further information if specific values for your
NX Units are not provided in this manual. The refreshing methods that you can use depend on the Unit
to which the NX Unit is connected. For available refreshing methods, refer to the user’s manual for the
CPU Unit or Communications Coupler Unit to which the NX Unit is connected.
The following table gives specific values for each element of NX Units that operate with synchronous
I/O refreshing.
 Input Data Processing Time of NX Unit (Tnx-InProc)
A-3-1 Specific Values of NX Units Operate with Synchronous I/O
Refreshing
NX Units
Tnx-InProc Remarks
Type Model
Digital Input Units Models support synchro-
nous I/O refreshing
0 [μs] −
Analog Input Units 0 [μs] −
Digital Mixed I/O Units 0 [μs] The value for digital inputs.
Incremental Encoder
Input Units
85 [μs] The value for pulse inputs and exter-
nal inputs.
SSI Input Units 65 [μs] −
Pulse Output Units NX-PG0122
/-PG0112
45 [μs] The values for status and other input
data processing and for external
inputs.
*1
*1. Pulse Output Units process status and other input data. Therefore, if there are Pulse Output Units that op-
erate with synchronous I/O refreshing in the configuration, they must be included in the Tmax-InProc cal-
culation regardless of whether the external inputs are used.
NX-PG0232-5
/-PG0242-5
21 [μs]
NX-PG0332-5
/-PG0342-5
31 [μs]
Load Cell Input Unit NX-RS1201 65 [µs] −

Omron NX Series Specifications

General

Programming Languages	Ladder, Structured Text, Function Block Diagram, Sequential Function Chart
Communication Ports	Ethernet, USB, RS-232C, RS-485
Memory Capacity	Varies by model
Program Memory	Varies by model
Data Memory	Varies by model
Operating Temperature	0°C to 55°C
Power Supply	24 VDC
Ethernet Ports	1 or 2 ports (depending on model)
USB Ports	1 or 2 ports (depending on model)
Dimensions	Varies by model
Weight	Varies by model