YOKOGAWA 2553A, User Manual

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12-2
IM 2553A-01EN
12.1 About Status Reports
Overview of Registers and Queues
Name Function Write Read
Status byte —
—
Serial polling
(RQS), *STB?(MSS)
Service request enable
register
Status byte mask
*SRE *SRE?
Standard event register Indicates device status changes
— *ESR?
Standard event enable
register
Standard event register mask
*ESE *ESE?
Extended event register Indicates device status changes
— STATus:EESR?
Extended event enable
register
Extended event register mask
STATus:EESE STATus:EESE?
Condition register Current device status
— STATus:CONDition?
Transition filter Conditions that change the extended
event register
STATus:FILTer<x> STATus:FILTer<x>?
Output queue Stores response messages for
queries
Query commands
Error queue Stores error numbers and messages
— STATus:ERRor?
Registers and Queues That Affect the Status Byte
The following registers affect the status byte bits.
Register Affected Status Byte Bit
Standard event register Sets bit 5 (ESB) to 1 or 0
Output queue Sets bit 4 (MAV) to 1 or 0
Extended event register Sets bit 3 (EES) to 1 or 0
Error queue Sets bit 2 (EAV) to 1 or 0
Enable Registers
The following registers are used to mask a bit so that the bit will not affect the status byte even when it
is set to 1.
Masked Register Mask Register
Status byte Service request enable register
Standard event register Standard event enable register
Extended event register Extended event enable register
Reading and Writing to Registers
For example, use the
*ESE
command to set the standard event enable register bits to 1 and 0. You
can use the
*ESE?
command to query whether the standard event enable register bits are ones or
zeros. For details on these commands, see chapter 11.