Appendix B - Adept DeviceNet

B.2 Limitations of the Adept DeviceNet Scanner

The DeviceNet Scanner that Adept has incorporated into the SmartController hardware and the V+ operating system currently supports only a subset of full DeviceNet functionality. The following is a summary of the DeviceNet implementation:

•Implemented the Master-Slaveoperation. This is a complete subset of Peer-to-Peer operation.

•Implemented the Unconnected Message Manager (UCMM) in its DeviceNet Scanner to establish connections.

•UCMM is used to establish I/O Connections.

•The Adept DeviceNet Scanner can be a Client or a Server on the network.

•The Adept DeviceNet Scanner currently does not support Cyclic or Change-of-Stateconnections.

•Only I/O Messaging is supported. I/O messages contain only data.

•Currently, only the Message Group 2 of the Predefined Master/Slave Connection Set is supported.

•Adept Message Group 2 I/O connections support only the I/O Poll Command/Response Message of the possible message types.

B.3 Adept Supplied DeviceNet Hardware

Adept supplies the following DeviceNet hardware in the SmartController:

Micro-style 12 mm thread DIN connector (female). See Table B-1for Pin assignments.

Table B-1. DeviceNet Signal to Pin Locations

Pin

Signal Name

1Drain

2V+

3V-

4CAN_H

5CAN_L

See Figure B-6 on page 124 for a drawing of the connectors.

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Nortech Systems XUSR, XSYS Limitations of the Adept DeviceNet Scanner, Adept Supplied DeviceNet Hardware, Pin Signal Name
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RS-422/485, XSYS, XUSR, RS-232/TERM specifications

Nortech Systems offers a comprehensive suite of serial communication solutions, including RS-232/TERM, XUSR, XSYS, and RS-422/485 interfaces. These products are designed to facilitate reliable and high-speed data transmission in various industrial applications, making them essential for connecting devices in automation, telecommunications, and data acquisition systems.

The RS-232/TERM interface is a widely adopted standard for serial communication, known for its simplicity and robustness. It supports point-to-point communication over relatively short distances, typically up to 50 feet. Key features include a maximum baud rate of up to 115.2 kbps, error-checking capabilities, and a straightforward connection process, making it ideal for connecting peripheral devices like printers, modems, and barcode scanners.

Building on the RS-232 standard, the XUSR and XSYS devices offer enhanced functionalities and flexibility. XUSR, for instance, supports not just traditional RS-232 connections, but also protocol conversion for various serial interfaces, facilitating seamless integration of legacy systems with modern networking technologies. It is particularly useful in environments where multiple protocols need to be managed simultaneously.

XSYS is designed for more complex applications and supports advanced communication features such as multi-drop configurations, enabling it to connect multiple devices on a single bus. This makes it suitable for extensive industrial networks where space and wiring complexity need to be minimized. Synchronous and asynchronous data transfer modes ensure that the XSYS is adaptable for both real-time data collection and standard command-response applications.

On the other hand, RS-422/485 interfaces excel in long-distance communication, allowing for data transmission over distances up to 4,000 feet. They are designed for multi-point connections, supporting up to 32 devices on a single bus through differential signaling, which enhances noise immunity. These characteristics make RS-422/485 particularly well-suited for environments with electromagnetic interference, such as factories or subways.

Nortech Systems’ serial communication solutions emphasize reliability, ease of use, and versatility. With their commitment to high performance and user satisfaction, these interfaces provide critical connectivity in today’s increasingly automated and interconnected world. Whether in data centers, manufacturing setups, or remote sensor networks, Nortech's offerings stand out for their reliability, efficiency, and adaptability, ensuring effective data communication across diverse applications.
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