SCS DATA STREAMS

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SNA Printer Exception Conditions/Sense Codes

Exception conditions in SNA are reported by sending a negative response to the sender of the data. The negative response contains a sense code that describes the type of exception condition that occurred. Some of these conditions are errors, and some are just temporary exceptions.

The following is a list of SNA sense codes that can be sent to the host as the result of an exception condition involving a printer. Sense codes are made up of two bytes of information. The first byte describes the class of exception that occurred (10h for Request Errors, 08h for Request Reject). The second byte describes the specific condition.

Request Errors = 10h

05h = Parameter Error. This indicates an invalid SCS parameter in the data stream. This condition is usually the result of a programming error in the software that is building the SCS data stream. It may also be caused by sending an unsupported SCS command.

Request Reject = 08h

01h = Resource Not Available. Either the printer is configured for local use, or an outbound pacing overrun has occurred. This is a network configuration problem that should be referred to the systems programmer.

02h = Intervention Required. Either the printer is out of paper, or a paper jam has occurred. This condition is temporary and can be cleared by the remote terminal operator.

11h = Break. The operator pressed the cancel switch while the printer was in the middle of a chain of data. The chain may be restarted under host software control.

14h = Bracket Bid Reject — (RTR to Follow). The printer is temporarily busy doing a Local Copy. The printer will send an RTR command when it is no longer busy, then printing can continue.

1Ch = Request Not Executable. The requested function cannot be executed because of a permanent error condition in the printer.

31h = LU Component Disconnected. The device is powered off, or the coaxial cable is not connected to the 3270 control unit. If the ULTRA is powered on and connected, it may be necessary to power down and power up to reestablish communication between the ULTRA and the system.

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Agilent Technologies 6287 manual SNA Printer Exception Conditions/Sense Codes, Request Errors = 10h, Request Reject = 08h

6287 specifications

Agilent Technologies 6287 is a high-performance signal generator specifically designed for advanced electronic testing and measurement applications. Recognized for its robustness and versatility, the 6287 caters to various sectors, including telecommunications, automotive, aerospace, and semiconductor industries. One of its main features is its capability to generate a wide range of frequencies, making it ideal for comprehensive testing of components and systems.

The Agilent 6287 boasts a frequency range extending from 10 MHz to 6 GHz, which allows users to perform tests across a broad spectrum of applications, including RF and microwave devices. Its excellent output power levels provide a significant advantage when dealing with devices requiring high signal strengths for accurate testing. Additionally, the unit supports various modulation techniques, including AM, FM, PM, and pulse modulation. This versatility ensures that engineers can evaluate the performance of devices under different signal conditions, crucial for real-world applications.

Another defining characteristic of the Agilent 6287 is its exceptional phase noise performance, delivering reliable and accurate results. High-phase noise can obscure signal testing results, making the 6287's low levels a critical factor for effective device evaluation. The generator's time domain capabilities add further value, allowing engineers to analyze signals in both frequency and time domains effectively.

With a user-friendly interface, the 6287 simplifies operation while supporting a wide range of programming capabilities. This makes it easy to integrate into automated test setups or to control it via standard programming languages, enhancing flexibility for engineering teams. The device also features advanced synchronization options that facilitate multi-instrument setups, allowing seamless collaboration with other measurement tools.

The Agilent Technologies 6287 is built with robust construction and thermal management features, ensuring reliable performance in demanding environments. Its compact design enables easy installation in test racks or mobile test setups. Overall, the Agilent 6287 signal generator is a powerful tool that stands out in the field of electronic testing, efficiently meeting the evolving needs of modern engineering applications. Its mixture of frequency versatility, modulation support, excellent phase noise performance, and user-friendly operation makes it an indispensable asset for professionals working with complex signal testing scenarios.