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The physical hardware communications link (physical layer) is not defined by SCPI. [5] While it was originally created for the IEEE-488.1 (GPIB) bus, [5] SCPI can also be used with RS-232, RS-422, RS-485, USB, Ethernet, VXIbus, HiSLIP, etc. [5] SCPI commands are ASCII textual strings, [5] which are sent to the instrument over the physical layer ...
The RapidIO architecture is a high-performance packet-switched electrical connection technology. It supports messaging, read/write and cache coherency semantics. Based on industry-standard electrical specifications such as those for Ethernet, RapidIO can be used as a chip-to-chip, board-to-board, and chassis-to-chassis interconnect.
bit 7, if high use Unique (5 byte) address, else use Polling (1 Byte) addresses. bit 6 and 5, Number of Expansion bytes normally it set if Expansion field is used, normally 0. bit 4 and 3, Physical layer type 0=Asynchronous, 1=Synchronous bit 2, 1 and 0, Frame type 1=BACK Burst Acknowledge send by Burst-mode Device 2=STX Master to Field Devices.
The ASi-5 system is open for the use of parameter interfaces such as e.g. IO-Link. IO-Link devices can be efficiently collected over long distances and could be integrated cyclically up to 32 bytes. 16 safe bits are available for safety-related switching devices, such as emergency stop, light curtains, safety switches and similar are available.
Keithley Instruments is a measurement and instrument company headquartered in Solon, Ohio, that develops, manufactures, markets, and sells data acquisition products, as well as complete systems for high-volume production and assembly testing.
The VISA hardware abstraction layer provides an interface-independent communication channel to T&M instruments. The drivers encapsulate the Standard Commands for Programmable Instruments (SCPI) commands, which are an ASCII -based set of commands for reading and writing instrument settings and measurement data.
The award is presented annually for outstanding contributions in electrical measurements, and is sponsored by Keithley Instruments and the IEEE Instrumentation and Measurement Society. [ 1 ] [ 2 ] The award is not to be confused with the similarly-named Joseph F. Keithley Award For Advances in Measurement Science of the American Physical ...
Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data.. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.