Gossen MetraWatt P1500, Руководство по эксплуатации

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Meaning of Register Contents Description of the Registers
Condition Registers (CRA, CRB)
The individual bits in the conditions registers reflect the current
status of a specific device function:
0 = status does not apply (FALSE)
1 = status applies (TRUE)
The content of the condition register can be read out with the help
of a query command, but cannot be directly edited or cleared.
Event Registers – Standard Event Register (ESR), Event Registers (ERA,
ERB, ERC)
The event registers acquire and save changes to specific device
functions. The corresponding bit in the event register is set (1 =
TRUE) if the associated function:
– Changes from FALSE to TRUE (with input ) or
– Changes from TRUE to FALSE (with input ).
The four event registers can be queried individually. The content
of an event register is cleared when it is queried. An enable
register is assigned to each event register.
Enable Registers – Standard Event Enable Register (ESE), Event Enable
Registers (ERAE, ERBE, ERCE), Service Request Enable Register (SRE),
Parallel Poll Enable Register (PRE)
The enable registers determine which bit(s) from the associated
register or status byte register is (are) capable of influencing the
respective group message (masking). The respective group
message remains set (1 = TRUE), as long as at least one bit
enabled to this end has a status of TRUE.
The six enable registers can be written to and queried separately.
The content of the registers is not changed by queries. Enable
registers ERAE, ERBE and ERCE are set to zero when the device
is switched off. Enable registers ESE, SRE and PRE are only
cleared as a result of shutdown if the PSC bit is set to 1.
Status Byte Register (STB)
The status byte register contains:
– The statuses of the group messages from the three event
registers with bits 1, 2, 3 and 5
– The status of the data output buffer with bit 4
(empty

MAV = 0, not empty

MAV = 1)
– The status of group message MSS consisting of bits 1, 2, 3, 4
and 5, masked by enable register SRE, with bit 6
– Bits 0 and 7 are not used and are always set to “0”.
Register contents can be read out:
– With the
*STB?
query command or
– In the case of IEC bus control, with the “Serial Poll” interface
command. In this case, bit 6 shows the RQS status, which is
reset (0) after serial polling has been completed.
The
*CLS
setting command clears all of the event registers and
the status byte register, with the exception of the MAV bit, and
cancels any pending SRQ message.
Power-On Status Clear Bit Error
The power-on status clear bit determines whether or not the
content of enable registers ESE, SRE and PRE will be cleared
when the device is switched off.
The PSC bit can be set and queried:
Set:
*PSC
n n = 0: ESE, SRE and PRE are not cleared
n = 1: ESE, SRE and PRE are cleared
Query:
*PSC?
Response: “0” or “1”
The PSC bit setting also remains unchanged after the device is
switched off, or after the
*CLS
command has been executed.
Operation Complete Bit (OPC)
See *OPC and *OPC? commands for a description of the
respective function.
Register
Name Meaning
ACLC AC-LEVEL CHANGED (line voltage range has changed H

L, L

H)
ACLL AC level Low (line voltage < 182 V
rms
)
CCE Measured current values are outside of the tolerance band specified by
UI_C_SET w1.w2.w3.w4 divided by w3.w4; ENABLE: “MINMAX ON”
CCR Output is (was) in current regulating mode.
CVR Output is (was) in voltage regulating mode.
CME Unknown error, syntax error, standardized value limits for numeric
parameters have been exceeded.
CMPC Compare current: current value not within current tolerance band specified by
UI_C_SET w1.w2.w3.w4 divided by w3.w4; ENABLE: “MINMAX ON”
CMPV Compare voltage: voltage value not within voltage tolerance band specified by
UI_C_SET w1.w2.w3.w4 divided by w1.w2; ENABLE: “MINMAX ON”
CVE Measured voltage values outside of tolerance band specified by
UI_C_SET w1.w2.w3.w4 divided by w1.w2; ENABLE: “MINMAX ON”
DDE Internal device error is pending
EXE Command-specific parameter limits exceeded, incompatibility of a command
or a parameter with a current operating state.
LIME Limit error:
Error message after setting command for USET, ISET, UL_L, UL_H, IL_L, IL_H:
a) Setting range UL_L

USET

UL_H or IL_L

ISET

IL_H exceeded; or
b) Measuring range exceeded during voltage or current measurement
c) Limit errors may also occur during a sequence.
Note regarding examination of limit and setting values.
MAV Finished message after query command: The requested information is ready
for pick-up at the data output buffer.
OCPA Output deactivated by overcurrent protection (OCP function).
Switch back on with OUTPUT ON.
CP Overload message: Power limiting has been triggered.
OPC Finished message: The commands preceding the *OPC command have been
processed (synchronization).
OTP1A Overtemperature warning: The device is overheated, e.g. due to inadequate
ventilation. If overheating is further increased, the output is switched off
when the OTP2A threshold is reached. The OTP2A shutdown threshold is
approximately 5° C higher than the OTP1A warning threshold.
OTP2A Overtemperature message and shutdown: The device is overheated, e.g. due
to inadequate ventilation. The output is deactivated when this message is
generated. The OUTPUT ON setting command is ignored as long as this
condition persists, and causes setting of the OTP2A bit in the event register.
OTP2I Ready message after OTP2A overtemperature message: The device has
cooled back down. If the POWER-ON function is set to standby or reset, the
output remains deactivated; if set to recall, automatic restart ensues.
OUTE Output error: Error message, power output can not be activated. Activation of
the output is disabled by an internal hardware status, or is locked by means
of the OUTPUT OFF signal at the trigger input of the analog interface.
Display: “Err 73”
OVPA Overvoltage protection has been triggered, the output has been deactivated.
Switch back on with OUTPUT ON.
PON Device was intermittently switched off, or an intermittent mains failure has
occurred.
QYE Error message after addressing as talker: A message is not (yet) ready for
pick-up at the output buffer.
REMC Status change: REMOTE

LOCAL (manual operation ensues)
S1A SIG 1, active signal has occurred
S2A SIG 2, active signal has occurred
S3A SIG 3, active signal has occurred
S123A Signal output SIG 1 or/and SIG 2 or/and SIG 3 at the analog input is active
SEQB Status message: The sequence function is active (run, halt).
SEQI Finished message: The sequence function is finished or has been aborted
(inactive) (ready).
SEQE Error message resulting from the sequence function.
T1A A signal has occurred at trigger input
TRG 1
of the analog interface with a
setting of: trigger mode

oFF
T2A A signal has occurred at trigger input
TRG 2
of the analog interface with a
setting of: trigger mode

oFF
TCB TST or ADJUSTCAL function active
TCE Self-test error or error during ADJUST has occurred