Aeroflex 8210A-2-5, Operation & Installation Manual, Page: 20 / 56

Model 8210A-2-5 IM-377
Aeroflex / Weinschel 20
Standard Event Status Register/ Standard Event Status Enable Register Formats
D7 D6 D5 D4 D3 D2 D1 D0
ON URQ CME EXE DDE QYE RQC OPC
Bit Mnemonic Description
7 PON Power On: This bit indicates that the device has powered-on
6 URQ User Request: This event bit indicates that a local control is causing a
User Request
5 CME Command Error: The parser has detected a syntax error in the current
command.
4 EXE Execution Error: The command could not be properly executed due to
an illegal input range or other inconsistent data.
3 DDE Device Dependent Error: A command could not properly complete due to
some device specific error
2 QYE Query Error: This bit indicates that either an attempt has been made to read
data when there was none present, or that data in the Output Queue has
been lost
1 RQC Request Control: The device is requesting control (not implemented)
0 OPC Operation Complete: This bit is generated in response to an *OPC
command. It indicates that the ITS 2000 has completed all pending
operations.
The Status Reporting Registers may be used for serial communications, with certain limitations. The Status
Byte Register can only be read via the *STB? query command, as the comm port does not provide for a serial poll
operation. Also, as data in the Output Queue is sent automatically during serial operation, the MAV message available
bit in the STB serves no purpose.
7-8. GENERAL SYNTAX STRUCTURE: The following paragraphs outline the general syntax and command structure
for the Model 8210A-2-5. This structure is common to all bus flavors of the Model 8210A-2-5.
NOTE
In the descriptions that follow, the term whitespace is used to define a sequence
of one or more combinations of ASCII Space (20h), Carriage return (0Dh), or
Tab (09h) characters.
7-8.1 SYNTAX OF QUERIES: A query message unit is made up of a query header ending in an ASCII question mark
character ’?’ (3FH), followed by optional whitespace, and ended by a program message terminator. To form a multiple
query, separate the individual program message units with a semicolon.
Examples : "ATTN?"
"ASSIGN?"
b. Multiple Query Commands:
"ATTN?; ASSIGN?"