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Specification & Description
| Specification | Description |
|---|---|
| Part Number | CJ1W-SCU32 |
| Alternative Part Number | CJ1WSCU32 |
| Manufacturer | Omron |
| Category | Serial Communications Unit |
| Family | CJ1 Series |
| Voltage | 24 V |
| Current Consumption | 0.4 A |
| Communication Interface | RS485 |
| Dimensions | 31 x 90 x 81.9 mm |
| Number of Communication Ports | 2 |
| Maximum Data Rate | 230 kbps |
| Mountable Racks | Compatible with CJ1, CJ2, CP1H, and NSJ systems |
| Functions | Protocol macro, Host Link, NT Links (1:N mode), Serial Gateway, No-protocol, Modbus-RTU Slave |
| Commodity Code | 853710 |
The Omron CJ1W-SCU32 is a versatile Serial Communications Unit designed for seamless integration with the CJ1 Series CPU Bus Unit. This compact module, measuring 31 x 90 x 81.9 mm, is engineered to facilitate reliable and efficient serial communication in industrial automation systems. Equipped with dual RS485 ports, it supports a maximum data rate of 230 kBit/s, ensuring swift and smooth data transfer for a variety of applications.
The unit's robust construction and high-speed communication capabilities make it an ideal choice for complex automation tasks that require precise control and monitoring. Its ability to handle multiple communication protocols, including MODBUS Master and Slave configurations, as well as Omron's proprietary Host Link protocol, provides flexibility and adaptability to meet the demands of diverse operational environments.
Designed with user convenience in mind, the CJ1W-SCU32 features clear indicators for easy monitoring of communication status and diagnostic purposes. The unit number switch allows for straightforward addressing within a network, while the terminating resistance switch ensures signal integrity over longer distances or in electrically noisy environments.
Whether it's for controlling machinery, data acquisition, or facilitating communication between different components of an automation system, the Omron CJ1W-SCU32 is a reliable and efficient solution that upholds the high standards of performance and quality associated with Omron's industrial automation products.
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Frequently Asked Questions
What type of communication does the Serial Communications Unit support?
The Serial Communications Unit supports RS-485 communication, which is suitable for industrial environments due to its noise resistance and multi-drop capabilities.
Can this unit be used for high-speed communication?
Yes, the unit is designed for high-speed serial communication, capable of supporting baud rates up to 230 kbps.
Is it possible to connect multiple devices to this unit?
Indeed, the unit allows for a 1:N network configuration, enabling the connection of multiple devices on a single network.
What protocols are compatible with this unit?
The unit is versatile and supports a range of protocols including Protocol Macro, Host Link, and Modbus-RTU, among others.
How many communication ports does the unit have?
The unit is equipped with two communication ports, both of which comply with the RS-422/485 standards.
What is the maximum transmission distance for the unit?
The maximum transmission distance for the unit is 500 meters, which is the combined cable length for the entire network.
Can this unit be used for both full-duplex and half-duplex communication?
Yes, the unit supports both full-duplex and half-duplex communication methods, providing flexibility for different network configurations.
What is the purpose of the terminating resistance switch on the unit?
The terminating resistance switch is used to enable or disable the built-in terminating resistors, which are necessary for proper signal integrity on RS-485 networks.
How do I know if the unit is functioning correctly?
The unit has several LED indicators that provide status information, such as power (PWR), communications activity (RD/SD), and error detection (ERC).
What should be considered when choosing cables for the unit?
When selecting cables, it's important to choose those that are shielded and meet the EIA RS-485 standards to ensure reliable communication over long distances.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
