Omron CJ1M-CPU13 CJ-series CJ1M CPU Unit

Description

The Omron CJ1M-CPU13 is a central processing unit engineered for the SYSMAC CJ-series programmable logic controller platform. It manages primary sequential logic execution, instruction processing, and system resource allocation within mid-scale industrial control configurations. Outfitted with one peripheral port and an integrated RS-232C port, this CPU facilitates direct interfaces for system software configuration, local operator monitors, and generic serial protocols. The controller features a space-saving slotless backplane layout and supports an expandable hardware topology through a secondary rack configuration. It provides unified operational compatibility with standard CJ-series discrete, analog, and specialized communication units.

Features

• Specialized hardware engine capable of fast ladder execution and data transfer operations.
• Built-in programming tool peripheral port and standard RS-232C interface.
• Support for a dedicated local expansion rack layout to scale physical I/O configurations.
• Integrated CompactFlash memory card slot for parameter retention, backup procedures, and diagnostics.
• Support for modular software execution architectures with integrated jump routines and execution interrupts.
• Flash memory storage parameters safeguard system logic arrays from transient voltage anomalies.

Applications

• Material handling and automated conveyor networks.
• Packaging machinery and secondary sorting apparatus.
• Localized HVAC and environmental building control units.
• Assembly station tracking and automated pick-and-place lines.
• Pumping stations and fluid flow monitoring loops.

Technical Specifications

Performance

System Capacity

Communication

Mechanical

Connections / Interfaces

Installation Guidelines

• DIN Rail Mounting: Hook the upper guide track of the CPU onto the standard DIN rail adjacent to the CJ-series power supply module. Slide the unit lock connectors firmly downward until they latch completely.
• Functional Earthing: Establish a short connection path using a conductor ($2\text{ mm}^2$ or thicker) from the functional ground terminal on the associated power supply module to a clean earth rail.
• Thermal Considerations: Ensure unobstructed natural convection by leaving a clear ventilation boundary of at least 20 mm above and below the module enclosure.
• Cable Separation: Keep communication lines (RS-232C and peripheral tool connections) routed away from high-current electrical lines, variable frequency drives, and high-voltage supply mains to suppress induction noise.
• System Isolation: Isolate all incoming lines from the mains distribution panel before inserting, locking, or separating any backplane bus connections.

FAQ

• Does this CPU unit support Extended Memory (EM) banks?
• No, this model features 32 Kwords of Data Memory (DM) only and does not contain EM banks.
• What is the maximum number of hardware expansion racks that can be added?
• The system layout permits the connection of exactly one local expansion rack.
• How many modules can be installed on the main CPU rack?
• The main CPU rack can accommodate a maximum of 10 modules alongside the power supply and CPU.
• What software is used to design and download code to this controller?
• CX-Programmer, available within the integrated CX-One software environment.
• Is data memory preserved if the hardware loses power entirely?
• User step programs are maintained via internal flash memory. A backup battery is utilized to retain volatile variables and the clock state.
• What type of hardware cards can be loaded into the option slot?
• The built-in memory card reader is designed for standard industrial-grade CompactFlash cards.
• What is the maximum number of hardware I/O points that this unit can manage?
• It can coordinate up to 640 local and expansion physical I/O points.
• Can this CPU handle high-speed interrupt routines?
• Yes, it supports up to 2 scheduled hardware interrupts for time-critical automation execution.
• Does this unit have built-in Ethernet capabilities?
• No, network options like Ethernet or Controller Link require adding specialized CJ-series communication units to the rack.
• What protocol modes does the integrated RS-232C interface support?
• It can run under Host Link, NT Link (1:N), No-protocol serial, or standard peripheral bus configurations.
• What is the total maximum unit capability across both racks?
• The entire setup can accommodate a maximum of 20 connectable units, split equally with 10 units on the CPU rack and 10 units on the expansion rack.