Vitrek V4 - Page 57

Vitrek V4 – Electrical Safety Tester USER MANUAL
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enable registers will perform a logical OR function, the output that controls the set bit of the Status Byte
Register is high.
Various commands set the bits in the enable registers. The following sections describe the enable registers
and the commands that set them:
• Event Status Enable Register (ESER): The ESER controls which types of events are summarized
by the Event Status Bit (ESB) in the SBR. The bits of the ESER correspond to the bits of the SESR.
Use the *ESE command to set the bits in ESER. Use the *ESE? query to read it.
• OPERation Enable Register: Even though the OPERation Enable Register is present in the V4’s,
the OPERation registers do not report any conditions.
• QUEStionable Enable Register: The QUEStionable Enable Register controls which types of
events are summarized by the QUES status bit in the SBR. Use the STATus:QUEStionable:ENABle
command to set the bits in the QUEStionable Enable register. Use the
STATus:QUEStionable:ENABle? query to read it.
• Service Request Enable Register (SRER): The SRER controls which bits in the SBR generate a
service request. Use the *SRE command to set the SRER. Use the *SRE? query to read it.
Queues
Output Queue: The V4s store query responses in the output queue by succeeding the IEEE 488.2 protocol. If
the power supply receives a new command or query message after a message terminator, the power supply
will clear and reset this queue each time. The computer must read a query response before it sends the next
command (or query) or it loses response to earlier queries. The output queue is included to power supplies.
Error/Event Queues: When an error or event occurs, the output queue stores the message. The output queue
stores and reports the messages on a FIFO (first in first out) state. The SYSTem:ERRor? query reads the next
item from the output queue. If output queue overflows, the error message is –350, “Queue overflow”; the
queue can’t store or report succeeding messages till it is read or cleared.
Error Message
Table 8: The SCPI error messages for the programmable power supplies
SCPI Error Code and Description
SESR Bit
0,"No error"
-100,"Command error" 5
-200,"Execution Error" 4
-221,"Settings conflict" 4
-221,"Settings conflict; Timer setting error" 4
-221,"Settings conflict; Voltage setting error" 4
-221,"Settings conflict; Current setting error" 4
-221,"Settings conflict; Resistance setting error" 4
-221,"Settings conflict; Frequency setting error" 4
-221,"Settings conflict; Recall setting error" 4