Connecting Customer-Supplied Digital I/O Equipment

Output Signals

The XDIO connector handles output signals 0001 to 0008. Refer to Table 3-11for output specifications. The locations of the signals on the connector are shown in Table 3-12 on page 63. The XDIO connector provides separate positive and negative connections for each channel (no internal common connections). This allows the choice of wiring for current-sourcing or current-sinking modes.

Table 3-11. DIO Output Specifications (XDIO connector)

Operating voltage range

0 to 24VDC

 

 

Operational current range, per channel

I out ≤ 100 mA, short-circuit

 

Protected

 

 

Vdrop across output in “on” condition

V drop ≤ 2.7 V at 100 mA

 

V drop ≤ 2.0 V at 10 mA

 

 

Output off leakage current

I out ≤ 600 µA

 

 

Turn on response time (hardware)

3 µsec maximum

Software scan rate/response time

16 ms scan cycle/ 32 ms max.

 

response time

 

 

Turn off response time (hardware)

200 µsec maximum

Software scan rate/response time

16 ms scan cycle/ 32 ms max.

 

response time

 

 

Figure 3-8shows two examples of different connections to the digital outputs on the XDIO connector. The examples are negative common and positive common using the internal 24V and ground connections.

Example 1: outputs 0001 to 0004 are shown with positive common.

Example 2: outputs 0005 to 0008 are shown with negative common.

Adept SmartController User’s Guide, Rev. E

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Nortech Systems RS-232/TERM, XUSR, RS-422/485, XSYS manual Output Signals, DIO Output Specifications Xdio connector
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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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