Industrial Automation

NX502-[][][][]

NX-series NX502 CPU Units

NX502-[][][][]

Up to ten EtherNet/IP networks, ideal for large-scale systems

last update: March 3, 2025

Applicable standards

Ask your OMRON representative for the most recent applicable standards for each model.

NX-series NX502 CPU Units

Product name	Specifications				Model
	Program capacity	Memory capacity for variables	Maximum number of used real axes
	Program capacity	Memory capacity for variables		Used motion control servo axes
NX502 CPU Unit	80 MB	4 MB (Retain attributes) / 256 MB (No Retain attributes)	256 axes	256 axes	NX502-1700
			128 axes	128 axes	NX502-1600
			64 axes	64 axes	NX502-1500
			32 axes	32 axes	NX502-1400
			16 axes	16 axes	NX502-1300

Note: 1. One NX-END02 End Cover is provided with the NX502-[][][][].
2. The battery is not mounted when the product is shipped. Refer to the Battery for details.

NX Units

EtherNet/IP Unit

Product name	Specifications			Model
Product name	Communications	Units per CPU Unit	Power consumption	Model
EtherNet/IP Unit	Tag data links, Message Communications	4 max.	8.1 W max.	NX-EIP201

Digital Input Units

Product Name	Specifications					Model
Product Name	Number of points	Internal I/O common	Rated input voltage	I/O refreshing method	ON/OFF response time	Model
DC Input Unit (Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width)	4 points	NPN	12 to 24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	20 μs max./ 400 μs max.	NX-ID3317
			24 VDC		100 ns max./ 100 ns max.	NX-ID3343
			24 VDC	Input refreshing with input changed time only *1	100 ns max./ 100 ns max.	NX-ID3344
		PNP	12 to 24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	20 μs max./ 400 μs max.	NX-ID3417
			24 VDC		100 ns max./ 100 ns max.	NX-ID3443
				Input refreshing with input changed time only *1	100 ns max./ 100 ns max.	NX-ID3444
	8 points	NPN		Switching Synchronous I/O refreshing and Free-Run refreshing	20 μs max./ 400 μs max.	NX-ID4342
	8 points	PNP				NX-ID4442
	16 points	NPN				NX-ID5342
	16 points	PNP				NX-ID5442
	32 points	NPN				NX-ID6342
	32 points	PNP				NX-ID6442
DC Input Unit (M3 Screw Terminal Block, 30 mm Width)	16 points	For both NPN/PNP	24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	20 μs max./ 400 μs max.	NX-ID5142-1
DC Input Unit (MIL Connector, 30 mm Width)	16 points	For both NPN/PNP	24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	20 ms max./ 400 ms max.	NX-ID5142-5
DC Input Unit (MIL Connector, 30 mm Width)	32 points	For both NPN/PNP	24 VDC		20 ms max./ 400 ms max.	NX-ID6142-5
DC Input Unit (Fujitsu/OTAX Connector, 30 mm Width)	32 points	For both NPN/PNP	24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	20 ms max./ 400 ms max.	NX-ID6142-6
AC Input Unit (Screwless Clamping Terminal Block, 12 mm Width)	4 points	200 to 240 VAC, 50/60 Hz (170 to 264 VAC, ±3 Hz)		Free-Run refreshing	10 ms max./ 40 ms max.	NX-IA3117

*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.

Digital Output Units

Product Name	Specifications						Model
Product Name	Number of points	Internal I/O common	Maximum value of load current	Rated voltage	I/O refreshing method	ON/OFF response time	Model
Transistor Output Unit (Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width)	2	NPN	0.5 A/point, 1 A/Unit	24 VDC	Output refreshing with specified time stamp only *1	300 ns max./ 300 ns max.	NX-OD2154
	2	PNP	0.5 A/point, 1 A/Unit	24 VDC	Output refreshing with specified time stamp only *1	300 ns max./ 300 ns max.	NX-OD2258
	4	NPN	0.5 A/point, 2 A/Unit	12 to 24 VDC	Switching Synchronous I/O refreshing and Free- Run refreshing	0.1 ms max./ 0.8 ms max.	NX-OD3121
		NPN		24 VDC		300 ns max./ 300 ns max.	NX-OD3153
		PNP				0.5 ms max./ 1.0 ms max.	NX-OD3256
						300 ns max./ 300 ns max.	NX-OD3257
			2 A/point, 8 A/Unit			0.5 ms max./ 1.0 ms max.	NX-OD3268
	8	NPN	0.5 A/point, 4 A/Unit	12 to 24 VDC		0.1 ms max./ 0.8 ms max.	NX-OD4121
	8	PNP		24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD4256
	16	NPN		12 to 24 VDC		0.1 ms max./ 0.8 ms max.	NX-OD5121
	16	PNP		24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD5256
	32	NPN	0.5 A/point, 4 A/terminal block, 8 A/Unit	12 to 24 VDC		0.1 ms max./ 0.8 ms max.	NX-OD6121
	32	PNP	0.5 A/point, 4 A/terminal block, 8 A/Unit	24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD6256
Transistor Output Unit (M3 Screw Terminal Block, 30 mm Width)	16	NPN	0.5 A/point, 5 A/Unit	12 to 24 VDC	Switching Synchronous I/O refreshing and Free- Run refreshing	0.1 ms max./ 0.8 ms max.	NX-OD5121-1
	16	PNP	0.5 A/point, 5 A/Unit	24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD5256-1
Transistor Output Unit (MIL Connector, 30 mm Width)	16	NPN	0.5 A/point, 2 A/Unit	12 to 24 VDC	Switching Synchronous I/O refreshing and Free- Run refreshing	0.1 ms max./ 0.8 ms max.	NX-OD5121-5
	16	PNP	0.5 A/point, 2 A/Unit	24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD5256-5
	32	NPN	0.5 A/point, 2 A/ common, 4 A/Unit	12 to 24 VDC		0.1 ms max./ 0.8 ms max.	NX-OD6121-5
	32	PNP	0.5 A/point, 2 A/ common, 4 A/Unit	24 VDC		0.5 ms max./ 1.0 ms max.	NX-OD6256-5
Transistor Output Unit (Fujitsu/OTAX Connector, 30 mm Width)	32	NPN	0.5 A/point, 2 A/ common, 4 A/Unit	12 to 24 VDC	Switching Synchronous I/O refreshing and Free- Run refreshing	0.1 ms max./ 0.8 ms max.	NX-OD6121-6
Relay Output Unit (Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width)	2	Relay type: N.O.	250 VAC/2 A (cosφ=1), 250 VAC/2 A (cosφ=0.4), 24 VDC/2 A, 4 A/Unit		Free-Run refreshing	15 ms max./ 15 ms max.	NX-OC2633
	2	Relay type: N.O.+N.C.			Free-Run refreshing	15 ms max./ 15 ms max.	NX-OC2733
	8	Relay type: N.O.	250 VAC/2 A (cosφ=1), 250 VAC/2 A (cosφ=0.4), 24 VDC/2 A, 8 A/Unit		Free-Run refreshing	15 ms max./ 15 ms max.	NX-OC4633

*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.

Digital Mixed I/O Units

Product Name	Specifications					Model
Product Name	Number of points	Internal I/O common	Maximum value of load current	I/O refreshing method	ON/OFF response time	Model
DC Input/Transistor Output Unit (MIL Connector, 30 mm Width)	Outputs: 16 points Inputs: 16 points	Outputs: NPN Inputs: For both NPN/ PNP	Outputs: 12 to 24 VDC Inputs: 24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	Outputs: 0.1 ms max./0.8 ms max. Inputs: 20 μs max./ 400 μs max.	NX-MD6121-5
	Outputs: 16 points Inputs: 16 points	Outputs: PNP Inputs: For both NPN/ PNP	Outputs: 24 VDC Inputs: 24 VDC		Outputs: 0.5 ms max./1.0 ms max. Inputs: 20 μs max./ 400 μs max.	NX-MD6256-5
DC Input/Transistor Output Unit (Fujitsu/OTAX Connector, 30 mm Width)	Outputs: 16 points Inputs: 16 points	Outputs: NPN Inputs: For both NPN/ PNP	Outputs: 12 to 24 VDC Inputs: 24 VDC	Switching Synchronous I/O refreshing and Free-Run refreshing	Outputs: 0.1 ms max./0.8 ms max. Inputs: 20 μs max./ 400 μs max.	NX-MD6121-6

High-speed Analog Input Units

Product name	Specifications								Model
	Number of points	Input range	Resolution	Input method	Con- version time	Trigger input section		I/O refreshing method
	Number of points	Input range	Resolution	Input method	Con- version time	Number of points	Internal I/O common	I/O refreshing method
High-speed Analog Input Unit	4	-10 to 10 V -5 to 5 V 0 to 10 V 0 to 5 V 1 to 5 V 0 to 20 mA 4 to 20 mA	• Input range of -10 to 10 V or -5 to 5 V: 1/64,000 (full scale) • Other input range: 1/32,000 (full scale)	Differ- ential input	5 μs per channel	4	NPN	Synchro- nous I/O refreshing	NX-HAD401
High-speed Analog Input Unit	4			Differ- ential input	5 μs per channel	4	PNP	Synchro- nous I/O refreshing	NX-HAD402

Analog Input Units

Product Name	Specifications									Model
Product Name	Num- ber of points	Input range	Res- olution	Conver- sion value, decima number (0 to 100%)	Over all accu- racy (25°C)	Input method	Con- version time	Input im- ped- ance	I/O refreshing method	Model
Voltage Input Unit	2	-10 to +10 V	1/8000	-4000 to 4000	±0.2% (full scale)	Singleended input	250 ms/ point	1MΩ min.	Free-Run refreshing	NX-AD2603
			1/8000	-4000 to 4000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD2604
			1/30000	-15000 to 15000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD2608
	4		1/8000	-4000 to 4000	±0.2% (full scale)	Singleended input	250 ms/ point		Free-Run refreshing	NX-AD3603
			1/8000	-4000 to 4000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD3604
			1/30000	-15000 to 15000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD3608
	8		1/8000	-4000 to 4000	±0.2% (full scale)	Singleended input	250 ms/ point		Free-Run refreshing	NX-AD4603
			1/8000	-4000 to 4000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD4604
			1/30000	-15000 to 15000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD4608
Current Input Unit	2	4 to 20 mA	1/8000	0 to 8000	±0.2% (full scale)	Singleended input	250 ms/ point	250Ω	Free-Run refreshing	NX-AD2203
			1/8000	0 to 8000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD2204
			1/30000	0 to 30000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD2208
	4		1/8000	0 to 8000	±0.2% (full scale)	Singleended input	250 ms/ point		Free-Run refreshing	NX-AD3203
			1/8000	0 to 8000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD3204
			1/30000	0 to 30000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD3208
	8		1/8000	0 to 8000	±0.2% (full scale)	Singleended input	250 ms/ point	85Ω	Free-Run refreshing	NX-AD4203
			1/8000	0 to 8000	±0.2% (full scale)	Differential Input	250 ms/ point		Free-Run refreshing	NX-AD4204
			1/30000	0 to 30000	±0.1% (full scale)	Differential Input	10 ms/ point		Selectable Synchronous I/O refreshing or Free-Run refreshing	NX-AD4208

Analog Output Units

Product Name	Specifications							Model
Product Name	Number of points	Input range	Res- olution	Output setting value, decimal number (0 to 100%)	Over all accuracy (25°C)	Con- version time	I/O refreshing method	Model
Voltage Output Unit	2 points	-10 to +10 V	1/8000	-4000 to 4000	±0.3% (full scale)	250 ms/ point	Free-Run refreshing	NX-DA2603
	2 points		1/30000	-15000 to 15000	±0.1% (full scale)	10 ms/ point	Selectable Synchronous I/O refreshing or Free- Run refreshing	NX-DA2605
	4 points		1/8000	-4000 to 4000	±0.3% (full scale)	250 ms/ point	Free-Run refreshing	NX-DA3603
	4 points		1/30000	-15000 to 15000	±0.1% (full scale)	10 ms/ point	Selectable Synchronous I/O refreshing or Free- Run refreshing	NX-DA3605
Current Output Unit	2 points	4 to 20 mA	1/8000	0 to 8000	±0.3% (full scale)	250 ms/ point	Free-Run refreshing	NX-DA2203
	2 points		1/30000	0 to 30000	±0.1% (full scale)	10 ms/ point	Selectable Synchronous I/O refreshing or Free- Run refreshing	NX-DA2205
	4 points		1/8000	0 to 8000	±0.3% (full scale)	250 ms/ point	Free-Run refreshing	NX-DA3203
	4 points		1/30000	0 to 30000	±0.1% (full scale)	10 ms/ point	Selectable Synchronous I/O refreshing or Free- Run refreshing	NX-DA3205

Temperature Control Units

Product name	Specifications								Model
Product name	Num- ber of chan- nels	Input type	Output	Num- ber of output points	Num- ber of CT input points	Control type	Con- version time	I/O refresh- ing method	Model
Advanced Temperature Control Unit	4	Universal input (themocouple, resistance thermometer, analog voltage, analog current)	Voltage output (for driving SSR)	4	4	Heating/ cooling control	50 ms	Free- Run refresh- ing	NX-HTC3510-5
	4		Linear current output	4	4	Heating/ cooling control			NX-HTC3510-5
	8		Voltage output (for driving SSR)	8	8	Standard control			NX-HTC4505-5
Temperature Control Unit 2-channel Type	2	Universal input (thermocouple, resistance thermometer)	Voltage output (for driving SSR)	2	2	Standard control			NX-TC2405
			Voltage output (for driving SSR)	2	None	Standard control			NX-TC2406
			Voltage output (for driving SSR)	4	None	Heating/ cooling control			NX-TC2407
			Linear current output	2	None	Standard control			NX-TC2408
Temperature Control Unit 4-channel Type	4		Voltage output (for driving SSR)	4	4	Standard control			NX-TC3405
			Voltage output (for driving SSR)	4	None	Standard control			NX-TC3406
			Voltage output (for driving SSR)	8	None	Heating/ cooling control			NX-TC3407
			Linear current output	4	None	Standard control			NX-TC3408

Temperature Input Units

Product Name	Specifications							Model
Product Name	Number of points	Input type	Reso- lution (25°C)	Over all accuracy (25°C)	Con- version time	I/O refreshing method	Terminals	Model
Thermocouple Input type	2	Thermo- couple	0.1°C max. *1	For details, refer to your local OMRON website	250 ms/ Unit	Free-Run refreshing	16 Terminals	NX-TS2101
	4		0.1°C max. *1		250 ms/ Unit		16 Terminals×2	NX-TS3101
	2		0.01°C max.		10 ms/ Unit		16 Terminals	NX-TS2102
	4		0.01°C max.		10 ms/ Unit		16 Terminals×2	NX-TS3102
	2		0.001°C max.		60 ms/ Unit		16 Terminals	NX-TS2104
	4		0.001°C max.		60 ms/ Unit		16 Terminals×2	NX-TS3104
Resistance Thermometer Input type	2	Resistance Thermo- meter (Pt100/ Pt1000, three-wire) *2	0.1°C max.		250 ms/ Unit		16 Terminals	NX-TS2201
	4		0.1°C max.		250 ms/ Unit		16 Terminals×2	NX-TS3201
	2		0.01°C max.		10 ms/ Unit		16 Terminals	NX-TS2202
	4		0.01°C max.		10 ms/ Unit		16 Terminals×2	NX-TS3202
	2		0.001°C max.		60 ms/ Unit		16 Terminals	NX-TS2204
	4		0.001°C max.		60 ms/ Unit		16 Terminals×2	NX-TS3204

*1. The resolution is 0.2°C max. when the input type is R, S, or W.
*2. The NX-TS2202 and NX-TS3202 only support Pt100 three-wire sensor.

Heater Burnout Detection Units

Product Name	Specifications							Model
	CT input section		Control output section
	Number of inputs	Maximum heater current	Number of outputs	Internal I/O common	Maximum load current	Rated voltage	I/O refreshing method
Heater Burnout Detection Unit	4	50 AAC	4	NPN	0.1 A/point, 0.4 A/Unit	12 to 24 VDC	Free-Run refreshing	NX-HB3101
Heater Burnout Detection Unit	4	50 AAC	4	PNP	0.1 A/point, 0.4 A/Unit	24 VDC	Free-Run refreshing	NX-HB3201

Load Cell Input Unit

Product Name	Specifications					Model
Product Name	Number of points	Conversion cycle	*I/O refreshing method 1**	Load cell excitation voltage	Input range	Model
Load Cell Input Unit	1	125 ms	• Free-Run refreshing • Synchronous I/O refreshing • Task period prioritized refreshing	5 VDC ± 10%	-5.0 to 5.0 mV/V	NX-RS1201

*1. Refer to the NX-series Load Cell Input Unit User’s Manual (W565) for detailed information on I/O refresh cycle.

Position Interface: Incremental Encoder Input Units

Product Name	Specifications					Model
Product Name	Number of channels	External inputs	Maximum response frequency	I/O refreshing method	Number of I/O entry mappings	Model
Incremental Encoder Input Unit	1 (NPN)	3 (NPN)	500 kHz	Free-Run refreshing, Synchronous I/O refreshing	1/1	NX-EC0112
	1 (PNP)	3 (PNP)	500 kHz			NX-EC0122
	1	3 (NPN)	4 MHz			NX-EC0132
	1	3 (PNP)	4 MHz			NX-EC0142
	2 (NPN)	None	500 kHz		2/2	NX-EC0212
	2 (PNP)	None	500 kHz		2/2	NX-EC0222

Position Interface: SSI Input Units

Product Name	Specifications					Model
Product Name	Number of channels	Input/ Output form	Maximum data length	Encoder power supply	Type of external connections	Model
SSI Input Unit	1	EIA standard RS-422-A	32 bits	24 VDC, 0.3 A/CH	Screwless push-in terminal block (12 terminals)	NX-ECS112
SSI Input Unit	2	EIA standard RS-422-A	32 bits	24 VDC, 0.3 A/CH	Screwless push-in terminal block (12 terminals)	NX-ECS212

Position Interface: Pulse Output Units

Product Name	Specifications							Model
Product Name	Number of channels *1	External inputs	External outputs	Maximum pulse output speed	I/O refreshing method	Number of I/O entry mappings	Control output interface	Model
Pulse Output Unit	1 (NPN)	2 (NPN)	1 (NPN)	500 kpps	Synchronous I/O refreshing, Task period prioritized refreshing *2	1/1	Open collector output	NX-PG0112
	1 (PNP)	2 (PNP)	1 (PNP)	500 kpps		1/1	Open collector output	NX-PG0122
	2	5 inputs/ CH (NPN)	3 outputs/ CH (NPN)	4 Mpps		2/2	Line driver output	NX-PG0232-5
	2	5 inputs/ CH (PNP)	3 outputs/ CH (PNP)			2/2		NX-PG0242-5
	4	5 inputs/ CH (NPN)	3 outputs/ CH (NPN)			4/4		NX-PG0332-5
	4	5 inputs/ CH (PNP)	3 outputs/ CH (PNP)			4/4		NX-PG0342-5

*1. This is the number of pulse output channels.
*2. Unit version 1.2 or later and an NX-ECC203 EtherCAT Coupler Unit are required.

EtherCAT Slave Unit

Product name	Specifications		Model
Product name	*Send/receive PDO data sizes 1**	Refreshing method	Model
EtherCAT Slave Unit	• Data input by the EtherCAT master (TxPDOs) 1,204 bytes max. • Data output by the EtherCAT master (RxPDOs) 1,200 bytes max.	Free-Run Mode	NX-ECT101

*1. The following shows the contents of the TxPDO data.
• I/O data set from the CPU Unit to the EtherCAT master: 1,200 bytes or less
• Status to notify the EtherCAT master: 4 bytes or less

Communications Interface Units

Product Name	Serial interface	External connection terminal	Number of serial ports	Communications protocol	Model
Communications Interface Unit	RS-232C	Screwless Clamping Terminal Block	1 port	• No-protocol • Signal lines	NX-CIF101
	RS-422A/485	Screwless Clamping Terminal Block	1 port		NX-CIF105
	RS-232C	D-Sub connector	2 ports		NX-CIF210

RFID Units

Product name	Amplifier/Antenna	No. of unit numbers used	Model
RFID Unit (1Ch)	V680 series	1	NX-V680C1
RFID Unit (2Ch)	V680 series	2	NX-V680C2

IO-Link Master Unit

Product Name	Specifications			Model
Product Name	Number of IO-Link ports	I/O refreshing method	I/O connection terminals	Model
IO-Link Master Unit	4	Free-Run refreshing	Screwless clamping terminal block	NX-ILM400

System Units

Product Name	Specifications	Model
Additional NX Unit Power Supply Unit	Power supply voltage: 24 VDC (20.4 to 28.8 VDC) NX Bus power supply capacity: 10 W max.	NX-PD1000
Additional I/O Power Supply Unit	Power supply voltage: 5 to 24 VDC (4.5 to 28.8 VDC) I/O power feed maximum current: 4 A	NX-PF0630
Additional I/O Power Supply Unit	Power supply voltage: 5 to 24 VDC (4.5 to 28.8 VDC) I/O power feed maximum current: 10 A	NX-PF0730
I/O Power Supply Connection Unit	Number of I/O power terminals: IOG: 16 terminals Current capacity of I/O power terminal: 4 A/terminal max.	NX-PC0010
	Number of I/O power terminals: IOV: 16 terminals Current capacity of I/O power terminal: 4 A/terminal max.	NX-PC0020
	Number of I/O power terminals: IOV: 8 terminals, IOG: 8 terminals Current capacity of I/O power terminal: 4 A/terminal max	NX-PC0030
Shield Connection Unit	Number of shield terminals: 14 terminals (The lower two terminals are functional ground terminals.)	NX-TBX01

EtherCAT Coupler Units

You can use the NX Units via the EtherCAT Coupler Unit that is connected to the built-in EtherCAT port on the CPU Unit.

Product Name	Communications cycle in DC Mode	Current consumption	Maximum I/O power supply current	Model
*EtherCAT Coupler Unit 1**	250 to 4000 μs *2	1.45 W max.	4 A	NX-ECC201
	250 to 4000 μs *2	1.45 W max.	10 A	NX-ECC202
	125 to 10000 μs *2	1.25 W max.	10 A	NX-ECC203

*1. One End Cover NX-END01 is provided with the EtherCAT Coupler Unit.
*2. This depends on the specifications of the EtherCAT master. For example, the values are as follows when the EtherCAT
Coupler Unit is connected to the built-in EtherCAT port on an NJ5-series CPU Unit: 500 μs, 1,000 μs, 2,000 μs, and
4,000 μs. Refer to the NJ/NX-series CPU Unit Built-in EtherCAT Port User’ Manual (Cat. No. W505) for the specifications
of the built-in EtherCAT ports on NJ/NX-series CPU Units. This also depends on the unit configuration.

EtherNet/IP Coupler Unit

Product name	Current consumption	Maximum I/O power supply current	Model
*EtherNet/IP Coupler Unit 1**	1.60 W or lower	10 A	NX-EIC202

*1. One End Cover NX-END01 is provided with the EtherCAT Coupler Unit.

Safety CPU Units

Appearance	Specifications					Model
Appearance	Maximum number of safety I/O points	Program capacity	Number of safety I/O connections	I/O refreshing method	Unit version	Model
	1,024	2,048 KB	128	Free-Run refreshing	Ver. 1.3 or later	NX-SL5500
	2,032	4,096 KB	254	Free-Run refreshing	Ver. 1.3 or later	NX-SL5700
	256	512 KB	32	Free-Run refreshing	Ver. 1.0 or later	NX-SL3300
	1,024	2,048 KB	128	Free-Run refreshing	Ver. 1.0 or later	NX-SL3500

Safety Input Units

Appearance	Specifications								Model
Appearance	Number of safety input points	Number of test output points	Internal I/O common	Rated input voltage	OMRON special safety input devices	Number of safety slave con- nections	I/O refreshing method	Unit version	Model
	4 points	2 points	Sinking inputs (PNP)	24 VDC	Can be connected.	1	Free-Run refreshing	Ver.1.1	NX-SIH400
	8 points	2 points	Sinking inputs (PNP)	24 VDC	Cannot be connected.	1	Free-Run refreshing	Ver.1.0	NX-SID800

Safety Output Units

Appearance	Specifications							Model
Appearance	Number of safety output points	Internal I/O common	Maximum load current	Rated voltage	Number of safety slave con- nections	I/O refreshing method	Unit version	Model
	2 points	Sourcing outputs (PNP)	2.0 A/point, 4.0 A/Unit at 40°C, and 2.5 A/ Unit at 55°C The maximum load current depends on the installation orientation and ambient temperature.	24 VDC	1	Free-Run refreshing	Ver.1.0	NX-SOH200
	4 points	Sourcing outputs (PNP)	0.5 A/point and 2.0 A/Unit	24 VDC	1	Free-Run refreshing	Ver.1.0	NX-SOD400

Automation Software Sysmac Studio

The Sysmac Studio is the software that provides an integrated environment for setting, programming, debugging and maintenance of machine automation controllers including the NJ/NX-series CPU Units, NY-series Industrial PC, EtherCAT Slave, and the HMI.
For details, refer to your local OMRON website and Sysmac Studio Catalog (Cat. No. P138).

Collection of software functional components Sysmac Library

Please download the Sysmac Library from the following URL and add it to the Sysmac Studio.
https://www.ia.omron.com/sysmac_library/

Typical Models

Product name	Features	Model
MQTT Communications Library	The MQTT communication library is a collection of software functional objects for exchanging Pub / Sub type messages through the MQTT server (MQTT broker).	SYSMAC-XR020
High-speed Analog Inspection Library	The High-speed Analog Inspection Library records analog input values acquired by the High-speed Analog Input Units in chronological order.	SYSMAC-XR016
Temperature Control Library	The Temperature Control Library is used to perform a high-level temperature control.	SYSMAC-XR007
Safety System Monitor Library	The Safety System Monitor Library is used to monitor the safety system information. You can use this library to manage the information of the running safety system	SYSMAC-XR015
SLMP Communications Library	The SLMP Communications Library is a collection of functional objects that uses the SLMP communications protocol for the Sequencer made by Mitsubishi Electric to carry out communications control.	SYSMAC-XR017

Recommended EtherCAT and EtherNet/IP Communications Cables

Use Straight STP (shielded twisted-pair) cable of category 5 or higher with double shielding (braiding and aluminum foil tape) for EtherCAT. For EtherNet/IP, required specification for the communications cables varies depending on the baud rate.
For 100BASE-TX/10BASE-T, use an STP (shielded twisted-pair) cable of Ethernet category 5 or higher.
In the table, materials indicated available for EtherNet/IP 100BASE-TX are available for both of 100BASE-TX and 10BASE-T.

Cables with Connectors (For EtherCAT only)

Item	Recom- mended manu- facturer	Cable length (m)	Model
Cable with Connectors on Both Ends (RJ45/RJ45) Standard RJ45 plugs 1 Wire gauge and number of pairs: AWG26, 4-pair cable Cable sheath material: PUR Cable color: Yellow 2 EtherCAT/ EtherNet/IP (10BASE/100BASE/1000BASE *4)	OMRON	0.3	XS6W-6PUR8SS30CM-YF
		0.5	XS6W-6PUR8SS50CM-YF
		1	XS6W-6PUR8SS100CM-YF
		2	XS6W-6PUR8SS200CM-YF
		3	XS6W-6PUR8SS300CM-YF
		5	XS6W-6PUR8SS500CM-YF
Cable with Connectors on Both Ends (RJ45/RJ45) Rugged RJ45 plugs *1 Wire gauge and number of pairs: AWG22, 2-pair cable Cable color: Light blue EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.3	XS5W-T421-AMD-K
		0.5	XS5W-T421-BMD-K
		1	XS5W-T421-CMD-K
		2	XS5W-T421-DMD-K
		5	XS5W-T421-GMD-K
		10	XS5W-T421-JMD-K
Cable with Connectors on Both Ends (M12 Straight/ M12 Straight) Shield strengthening connector cable *3 M12/Smartclick connectors Wire gauge and number of pairs: AWG22, 2-pair cable Cable color: Black EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.5	XS5W-T421-BM2-SS
		1	XS5W-T421-CM2-SS
		2	XS5W-T421-DM2-SS
		3	XS5W-T421-EM2-SS
		5	XS5W-T421-GM2-SS
		10	XS5W-T421-JM2-SS
Cable with Connectors on Both Ends (M12 Straight/ RJ45) Shield strengthening connector cable *3 M12/Smartclick connector and rugged RJ45 plug Wire gauge and number of pairs: AWG22, 2-pair cable Cable color: Black EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.5	XS5W-T421-BMC-SS
		1	XS5W-T421-CMC-SS
		2	XS5W-T421-DMC-SS
		3	XS5W-T421-EMC-SS
		5	XS5W-T421-GMC-SS
		10	XS5W-T421-JMC-SS

*1. Cables with standard RJ45 plugs are available in the following lengths: 0.2 m, 0.3 m, 0.5 m, 1 m, 1.5 m, 2 m, 3 m,
5 m, 7.5 m, 10 m, 15 m, 20 m.
Cables with rugged RJ45 plugs are available in the following lengths: 0.3 m, 0.5 m, 1 m, 2 m, 3 m, 5 m, 10 m, 15 m.
For details, refer to the Industrial Ethernet Connectors Catalog (Cat. No. G019).
*2. Cables colors are available in yellow, green, and blue.
*3. For details, contact your OMRON representative.
*4. The products can be used only with the NX701/NX502.

Cables / Connectors (For EtherCAT or EtherNet/IP (100BASE-TX))

Product			Appearance	Recommended manufacturer	Model
For 1000BASE-T *2 and 100BASE-TX	Size and conductor pairs: AWG24 × 4P	Cables	----	Kuramo Electric Co., Ltd.	*KETH-SB 1**
For 1000BASE-T *2 and 100BASE-TX	Size and conductor pairs: AWG24 × 4P	RJ45 Connectors	----	Panduit Corporation	*MPS588 1**
For 100BASE-TX	Size and conductor pairs: AWG22 × 2P	Cables	----	Kuramo Electric Co., Ltd.	*KETH-PSB-OMR 1**
		Cables	----	JMACS Japan Co., Ltd.	*PNET/B 1**
		RJ45 Assembly Connector		OMRON	*XS6G-T421-1 1**

*1. We recommend you to use the above Cable and OMRON’s RJ45 Assembly Connector together.
*2. The products can be used only with the NX701/NX502.
Note: Connect both ends of cable shielded wires to the connector hoods.

Optional Products/Maintenance Products/DIN Track Accessories

Product Name	Specification	Model
Memory Cards	SD memory card, 2 GB	HMC-SD292
	SDHC memory card, 4 GB	HMC-SD492
	SDHC memory card, 16 GB	HMC-SD1A2
Battery	Refer to the Data Sheet for details.	CJ1W-BAT01
End Cover	Must be connected to the right end of the CPU Rack. One End Cover is provided with the CPU Unit	NX-END02
DIN Tracks	Length: 0.5 m, Height: 7.3 mm	PFP-50N
DIN Tracks	Length: 1 m, Height: 7.3 mm	PFP-100N
End Plate	There are 2 stoppers provided with CPU Units and I/O Interface Units as standard accessories to secure the Units on the DIN Track.	PFP-M
Unit/Terminal Block Coding Pins	For 10 Units (Terminal Block: 30 pins, Unit: 30 pins)	NX-AUX02
DIN Track Insulation Spacers	A Spacer to insulate the control panel from the DIN Track. To insulate the EtherCAT Slave Terminal from the control panel, use DIN Track Insulation Spacers.	NX-AUX01

last update: March 3, 2025

Product Category

Automation Systems
- Machine Automation Controllers
  - Controller NX5
    - CPU Units
      - NX502-[][][][]

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