U User Status - Omega Engineering OMB-CHARTSCAN 1400 User Manual

API Commands
TYPE
EXECUTION
SYNTAX
DESCRIPTION
The User Status (
at any time without interfering with normal operation. Any error conditions, except Calibration Errors, are cleared
after the status string is read by the controller. Calibration errors are cleared when the unit is calibrated.
Status strings are returned when the unit is next addressed to Talk. The terminators used and the use of the End
Or Identify (EOI) line can be changed with the Set Query Terminator (
If the unit is configured to trigger on Talk, requesting a status report will not cause the unit to trigger.
The following paragraphs provide more detailed information about the
: Reads and clears the Event Status Register (ESR). Refer to the Status and Event Reporting sections of
U0
Appendix C for details on status reporting.
: Reads the Status Byte register (STB). The response to this request is the same as in an IEEE 488 Serial
U1
Poll except that bit 6 carries the Master Summary Status (MSS) rather than the Request for Service. The Status
Byte register is a read-only register whose bits correspond to those of the Service Request Enable (SRE) register
with the addition of bit value 64 which responds with the Master Summary Status. The Master Summary Status
bit indicates whether or not this device needs service. It responds with:
: Read and clear the Calibration Status Register (CSR). The response to this request is the current contents
U2
of the Calibration Status Register. This register contains information regarding the calibration of the unit and any
errors encountered while attempting to calibrate the unit. Refer to the following figure for details about the
Calibration Status Register.
A-56
U
System
Immediate
Request information about various internal conditions of the unit where
Ureq
refers to one of the following request types:
- Query and clear the Event Status Register (ESR)
0
- Query the Status Byte Register (STB)
1
- Query and clear Calibration Status Register (CSR)
2
- Query system settings
3
- Query current High/Low/Last registers
4
- Query and clear current High/Low/Last
5
- Query the Buffer Status String
6
- Query assigned alarm outputs
7
- Query configured channels
8
- Query digital inputs
9
10
11
12
13
14
15
16
17
18
) command is used to return information about various conditions of the unit, and may be sent
U
- Acquisition Complete
001
- Stop Event
002
- Query Error
004
- Device Dependent Error
008
- Alarm
001
- Triggered
002
- Ready
004
- Scan Available
008
- User Status
- Query memory option (in Kbytes)
- Query all channels having programmed valid alarm setpoints
- Query last calibration time/date
- Query last scan read
- Query card IDs
- Query product information
- Query measuring mode parameters
- Query root mean square (RMS)
- Query acquisition states and various system flags
responds with:
U0
- Execution Error
016
- Command Error
032
- Buffer 75% Full
064
- Power-On
128
- Message Available
016
- Event Detected
032
- Buffer Overrun
128
) and Set User Terminator (
Q
responses.
U
ChartScan User's Manual
Appendix A
req
) commands.
V