Hioki SW1001, Инструкция по эксплуатации

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80
Communication Method
Standard Event Status Register (SESR)
The Standard Event Status Register is an 8-bit register. If any bit in the Standard Event Status
Register is set to “1” (within the enabled bits set by the Standard Event Status Enable Resister),
bit 5 (ESB) of the Status Byte Register is set to “1”.
See: "Standard Event Status Register (SESR) and Standard Event Status Enable Register
(SESER)" (p. 81)
The Standard Event Register is cleared in the following situations:
• When a *
CLS
command is executed
• When an event register query ( *
ESR?
) is executed
• When the power is turned on again
Bit 7 PON
Power-On Flag
Set to “1” when the power is turned on, or upon recovery from an outage.
Bit 6
URQ
(Unused)
Not used by this device
User Request
Bit 5 CME
Command error (The command to the message terminator is ignored.)
Set to “1” when a received command contains a syntactic or semantic error.
• Program header error
• Incorrect number of data parameters
• Invalid parameter format
• Received a command not supported by the device
Bit 4 EXE
Execution error
Set to “1” when a received command cannot be executed for some reason.
• The specified data value is outside of the set range
• The specified setting data cannot be set
• Execution is prevented by some other operation being performed
Bit 3 DDE
Device-dependent error
Set to “1” in the event of a backup error, self-test error, communications
parameter error, communications timeout, or other issue.
Bit 2 QYE
Query error (The output queue is cleared.)
Set to “1” when a query error is detected by the output queue control.
• When the data overflows the output queue
• When data in the output queue has been lost
Bit 1
RQC
(Unused)
Not used by this device.
Request control
Bit 0 OPC
Operation complete
• Execution of an
*
OPC
command.
• Completion of operations of all messages up to the *
OPC
command.