DH Instruments PPC4, Руководство по эксплуатации и обслуживанию

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PPC4™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 178
Standard Event Status Enable Register ( “*RSE” program message ) determines which of
these flags are able to assert the RSB bit. The description of these bits are given as:
MEAS Measurement ready (Bit 2)
Indicates that the PPC4 has completed a Q-RPT measurement.
NRDY Generation Not Ready (Bit 1)
Indicates that the PPC4 made a transition from Ready to Not Ready as defined
by the control settings (see Section 3.2.2).
RDY Generation Ready (Bit 0)
Indicates that the PPC4 has reached a target pressure and is Ready as defined
by the control settings (see Section 3.2.2).
6.7 IEEE STD. 488.2 Common And Status Program
Messages
The PPC4 supports a set of commands that are common to all instruments conforming to IEEE Std. 488.2.
These command make it easy to perform basic function for any device that supports these commands.
These commands also cover the status reporting commands. See Section 4.5 for details on the status registers
mentioned in these commands.
Table 26. Program Message List
∗
CLS
Clear all of the status & event structures.
∗
ESE
Read or set the Standard Event Status Enable Register.
∗
ESR
Read the Standard Event Status Register.
∗
IDN
Identify the PPC4 version, range, and serial number.
∗
OPC
Set the operation complete bit when all operations have completed.
∗
OPT
Read the list of installed PPC4 options.
∗
RST Reset the PPC4 control settings to factory settings.
∗
TST
Read the power on self test status.
∗
SRE
Read or set the Service Request Enable Register.
∗
STB
Read the Status Byte Register.
∗
RSE
Read or set the Ready Status Enable Register.
∗
RSR
Read the Ready Status Register.
6.7.1 Program Message Descriptions
∗
CLS
Purpose Clear all of the status & event structures.
Command
“
∗
CLS”
Remarks This program message clears the following events and status registers:
Standard Byte Register (STB)
Standard Event Status Register (ESR)
Error Queue
Pending OPC operations
Example
(classic)
Sent:
Reply:
“
∗
CLS”
none