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Specification & Description
| Specification | Description |
|---|---|
| Part Number | CQM1-CPU43-E |
| Alternative Part Number | CQM1CPU43E |
| Manufacturer | Omron |
| Category | General Automation |
| Voltage | 24 V dc |
| Program Capacity | 7.2K Words |
| Control Method | Stored program method |
| I/O Control Method | Cyclic scan with direct output; immediate interrupt processing |
| Programming Language | Ladder diagram |
| Instruction Length | 1 step per instruction, 1 to 4 words per instruction |
| Types of Instructions | 137 instructions (14 basic types) |
| Execution Time | Basic instructions: 0.50 to 1.50 ms, Special instructions: 24 ms (MOV instruction) |
| Input Bits | I/O total within 192 points (12 words) |
| Output Bits | Bits not used as I/O bits can be used as work bits. |
| Work Bits | 01200 to 09515, 11200 to 19515, 21600 to 21915, 22400 to 22915 |
| Function Expansion Bits | 20000 to 24315: Used as work bits, including High-speed Counter 1,2 PV and Pulse output 1, 2 volume (CPU43-E only) |
| Data Memory | 6,144 words (DM 0000 to DM 6143) plus DM 6144 to DM 6655 (read-only) |
| Interrupt Processing | External interrupts: 4, Scheduled interrupts: 3 |
| Memory Protection | HR, AR, and DM area contents; counter values; and clock (RTC) values maintained during power interruptions |
| Memory Backup | Battery life is 5 years, replace the battery within 1 week if BAT ERR indicator lights |
| Self-diagnostic Functions | CPU Unit failure, I/O bus error, memory failure, battery error, and host link error |
| Program Checks | No END instruction, programming errors (continuously checked during operation) |
| Weight | 0.580 kg |
| Commodity Code | 853710 |
The Omron CQM1-CPU43-E CPU Unit is a compact and versatile controller designed for small-scale control applications. With a 24 V dc power supply, this unit is engineered to meet the demands of a wide range of industrial automation tasks. The CPU module boasts a substantial programme capacity of 7.2K words, providing ample space for complex logic operations and data handling.
This CPU unit is part of the highly regarded CQM1 series, known for its reliability and ease of use. It features a stored program method for control and supports cyclic scan with direct output, as well as immediate interrupt processing for efficient task management. The programming language is ladder diagram, which is widely used in the industry for its straightforward and visual approach to programming logic controllers.
The CQM1-CPU43-E is equipped with self-diagnostic functions, including CPU Unit failure detection, I/O bus error identification, memory failure checks, battery error notifications, and host link errors. These features ensure that any issues are quickly identified and can be addressed promptly to minimise downtime.
Memory protection is also a key feature, with HR, AR, and DM area contents, counter values, and clock values maintained during power interruptions. The battery life is designed to last 5 years, ensuring long-term reliability and reducing the need for frequent maintenance.
With its robust construction and proven performance, the Omron CQM1-CPU43-E CPU Unit is an excellent choice for those seeking a dependable solution for their automation needs. Whether it's for manufacturing, processing, or any other industry where precise control is paramount, this CPU module delivers consistent results and operational excellence.
Commonly Asked Questions
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Frequently Asked Questions
What is the memory capacity of this CPU unit?
The CPU unit has a program capacity of 7.2K words, providing ample space for complex automation tasks.
Can the memory be protected during power interruptions?
Yes, the HR, AR, and DM area contents, counter values, and clock values are maintained during power interruptions to ensure data integrity.
Is there a battery backup available for this unit?
The unit includes a battery backup feature with a battery life of 5 years, ensuring that your programmes and settings are retained even in the event of power loss.
What kind of self-diagnostic functions does the CPU unit offer?
The CPU unit is equipped with self-diagnostic functions for CPU Unit failure, I/O bus error, memory failure, battery error, and host link error.
How does the CPU unit handle program checks?
The unit continuously checks for programming errors during operation, including the absence of an END instruction, to ensure smooth functioning.
What types of instructions can the CPU unit execute?
The CPU unit can execute 137 different types of instructions, including 14 basic types, to accommodate a wide range of automation tasks.
What is the execution time for instructions on this CPU unit?
Basic instructions have an execution time ranging from 0.50 to 1.50 ms, while special instructions like the MOV instruction take approximately 24 ms.
How many input and output bits does the CPU unit support?
The CPU unit supports I/O within 192 points, which equates to 12 words for input bits and allows for a flexible configuration of inputs and outputs.
Does the CPU unit support interrupt processing?
Yes, the unit supports external interrupts and scheduled interrupts, including high-speed counter interrupts and pulse output, for responsive automation control.
What is the data memory size of the CPU unit?
The CPU unit comes with 6,144 words of data memory, plus an additional read-only area, providing substantial space for data storage and manipulation.
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