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Omron CJ1W-PRM21 Communication Unit

Name: Omron CJ1W-PRM21 Communication Unit
SKU: CJ1W-PRM21
Price: 906.15 GBP
Availability: InStock

£906.15 inc VAT

In Stock · Delivered in 3–5 Working Days

Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.

Technical SpecificationsOmron

Model	PRM21 Omron
Communication Type	PROFIBUS DP Master
Connector Type	9-pin D-sub (RS-485 standard)
Master Types	Class 1 and Class 2 master supported
Expansion Unit Type	CPU Bus Unit
Unit Type	CPU Bus Unit (counts toward 16-unit CPU Bus limit)
Supported Protocol	PROFIBUS DP V0/V1 (EN 50170 compliant)
Number of Communication Ports	1
Mounting Method	DIN rail (CPU rack only)
Product Dimensions (W × H × D)	31 × 90 × 65 mm

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SKU: CJ1W-PRM21 Category: Omron Modules Tag: CJ1W-PRM21 Brand: Omron

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Omron CJ1W-PRM21 Communication Unit

The Omron PRM21 is a high-performance PROFIBUS DP Master unit designed for CJ-series PLCs , enabling seamless connection to PROFIBUS DP field devices such as drives, I/O blocks, sensors, and actuators. Installed as a CPU Bus Unit , the CJ1W-PRM21 provides powerful and flexible control over a PROFIBUS DP network, allowing Omron PLCs to function as the master station in a fieldbus environment.

Communication Specifications

Model	PRM21 Omron
Communication Type	PROFIBUS DP Master
Supported Protocol	PROFIBUS DP V0/V1 (EN 50170 compliant)
Number of Communication Ports	1
Connector Type	9-pin D-sub (RS-485 standard)
Network Topology	Bus topology (with terminating resistors)
Max Devices on Network	Up to 126 PROFIBUS nodes (depending on addressing and power)
Baud Rate Support	9.6 kbps to 12 Mbps (auto-detect)
Master Types	Class 1 and Class 2 master supported
Network Configuration	Via CX-ConfiguratorFDT or GSD file integration

Electrical & Mechanical

Power Supply	Supplied from CJ-series rack
Mounting Method	DIN rail (CPU rack only)
Expansion Unit Type	CPU Bus Unit
I/O System	CJ I/O Bus
Product Dimensions (W × H × D)	31 × 90 × 65 mm
Weight	100 g (unpacked)

Environmental Ratings

Operating Temperature	0 to 55°C
Storage Temperature	–20 to 75°C
Humidity Range	10% to 90% RH (non-condensing)
Shock Resistance	IEC 60068-2-27
Vibration Resistance	IEC 60068-2-6
Ingress Protection	Not specified

System Integration

Compatible PLCs	Omron CJ1, CJ1M, CJ2 CPU units
Unit Type	CPU Bus Unit (counts toward 16-unit CPU Bus limit)
I/O Mapping	Automatic via configuration software
Software Configuration	CX-ConfiguratorFDT GSD file-based device setup
Data Exchange	Cyclic data exchange for standard PROFIBUS devices Diagnostic and acyclic communication (PROFIBUS DP-V1)

Frequently Asked Questions

How can I check whether CJ1W-PRM21 is the correct replacement?

Check the exact manufacturer part number, electrical ratings, interface type, mounting and equipment compatibility against your existing equipment and the manufacturer’s datasheet.

How quickly can CJ1W-PRM21 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight	0.1 kg

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CJ1-PROFIBUS-Datasheet.pdf CJ1W-PRM21-Datasheet.pdf

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Omron CJ1W-PRM21 Communication Unit