598226

Keithley 2000 Manual

105
Zoom out
Zoom in
Previous page
1/256
Next page
Status Byte Register
The summary messages from the status registers and queues are used to set or clear the
appropriate bits (B0, B2, B3, B4, B5, and B7) of the Status Byte Register. These bits do not
latch, and their states (0 or 1) are solely dependent on the summary messages (0 or 1). For
example, if the Standard Event Status Register is read, its register will clear. As a result, its
summary message will reset to 0, which in turn will clear the ESB bit in the Status Byte Reg
-
ister.
Bit B6 in the Status Byte Register is either:
• The Master Summary Status (MSS) bit, sent in response to the *STB? command, in-
dicates the status of any set bits with corresponding enable bits set.
• The Request for Service (RQS) bit, sent in response to a serial poll, indicates which
device was requesting service by pulling on the SRQ line.
For a description of the other bits in the Status Byte Register, see “Common commands,
*STB?”
The IEEE-488.2 standard uses the following common query command to read the Status
Byte Register: *STB?.
When reading the Status Byte Register using the *STB? command, bit B6 is called the
MSS bit. None of the bits in the Status Byte Register are cleared when using the *STB? com-
mand to read it.
The IEEE-488.1 standard has a serial poll sequence that also reads the Status Byte Reg-
ister and is better suited to detect a service request (SRQ). When using the serial poll, bit
B6 is called the RQS bit. Serial polling causes bit B6 (RQS) to reset. Serial polling is dis
-
cussed in more detail later in this section entitled “Serial Poll and SRQ.”
Any of the following operations clear all bits of the Status Byte Register:
• Cycling power.
• Sending the *CLS common command
Note: The MAV bit may or may not be cleared.
2000-900 (J - Aug 2010) BOOK.fm Page 26 Wednesday, October 12, 2011 12:29 PM
… 105 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Keithley 2000 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Keithley 2000 in the language / languages: English as an attachment in your email.

The manual is 5,8 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Keithley 2000

Keithley 2000 User Manual - German - 122 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info