
104
Table 7.6 Standard Event Status Register
Bit No. and Name
Event/status indicated when bit is true
bit7: PON
Power ON.
Read first after turning the power on.
bit6: URQ
Not used
bit5: CME
Command error
Errors were detected in received messages.
Specifically, they are grouped in the bits MLE, HDE
and DFE of the Error register in the following cases.
· DSM received a message exceeding a limit.
· A message header that could not be recognized and
processed by DSM was received.
· Formatting of a data part that followed the message
was faulty.
(Data format error and overflow of parameters)
Note: A command that caused a data format error will
be ignored and execution will be performed based on
retained data. A parameter string that exceeds a
specified number will be ignored in execution.
bit4: EXE
Execution error
A received message cannot be executed at present or
parameter value is outside the range.
These are errors grouped in DRE and CNE bits of the
Error register.
Note: A command whose set parameter value is
outside the range will be ignored and execution will
be made based on retained data.
bit3: DDE
Equipment dependent errors
Internal errors other than command, query and
execute errors have been detected.
These errors are grouped in ISE and RAM bits of the
Error register.
Reset after moving the error cause.
bit2: QYE
Query error
Data was lost due to overflow of the output queue.
Data was read while the output queue was empty.
Talker designation was made before data reception
ended.
Listener designation was made before data
transmission ended.
bit1: RQC
Not used
bit0: OPC
Operation complete
All operations being executed are completed, enabling
acceptance of next command.
Set as response to the *OPC command.
Summary of Contents for DSM-8542
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Page 21: ...11 3 2 Block Diagram of DSM 8542...
Page 89: ...79 Syntax Chart Fig 7 1 Message Syntax Chart...
Page 90: ...80 Command program header Fig 7 2 Program Header Syntax Chart...
Page 91: ...81 Fig 7 3 Syntax Chart of Data Part...
Page 138: ...128 11 Product Full View...
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