Operator Manual Firmware Ver.3.05 and higher Instruction Manual

3-46 BOP-1K-GL 022814
ANDed with its enable register for all bits except bit 6. The result is placed in bit 6 of the Service
Request register. If bit 6 is a 1 (true), it causes the MBT-G power supply to assert the SRQ line
to the host controller.
Figure 3-11 also shows that if the error/event queue is not empty, bit 3 is set in the Service
Request register and bit 4 indicates that a message is available in the output buffer.
3.7.7.2 OPERATIONAL STATUS REGISTER
The OPERational condition register contains conditions which are a part of the instrument’s nor-
mal operation. The definition of each of these bits (condition register) is as follows:
• 0 through 4 - Not Used — always zero.
• 5 - Waiting for Trigger — 1 indicates the trigger system is enabled. If trigger source is
external and the trigger input goes low, the WTG will remain in a one condition until
after the trigger input goes high.
• 6 - Transient Armed — 1 indicates the transient function is enabled,
• 7 - Not Used — always zero.
• 8 - Constant Voltage — 1 indicates the instrument is in constant voltage mode.
• 9 - Transient Complete — 1 indicates transient has been completed. Not readable in
OPERation Status Condition register.
• 10 - Constant Current — 1 indicates the instrument is in constant current mode.
• 11 - Sample Complete — 1 indicates the sample has been completed.
• 12 - List Complete — 1 indicates the programmed list has been completed. Not readable
in OPERation Status Condition register.
• 13 - Not Used — always zero.
• 14 - List Running — 1 indicates the programmed list is in progress.
• 15 - Not Used — always zero.
3.7.7.3 QUESTIONABLE STATUS REGISTER
The QUEStionable condition register (see Figure 3-11) contains status bits representing
data/signals which give an indication of the quality of various aspects of the signal.
A bit set in the QUEStionable condition register indicates that the data currently being acquired
or generated is of questionable quality due to some condition affecting the parameter associ-
ated with that bit.
• 0 - Voltage Mode Error — 1 indicates the instrument is in Current mode.
• 1 - Current Mode Error — 1 indicates the Power Supply is in Voltage mode.
• 2 - Not Used — always zero.
• 3 - Thermal Error — 1 indicates a thermal error has been detected.
• 4 - 5 - Not Used — always zero.
• 6 - Slave Error — 1 indicates a slave fault in a master/slave configuration
• 7 - 11 - Not Used — always zero.
• 12 - Voltage Protect Error — 1 indicates a Voltage protection error has been detected.