Stanford Research Systems SIM918 Operating And Service Manual page 51

3.4 Commands
Example:
RCLK?
Example:
3.4.8 Interface commands
*RST
SIM918 Precision Current Preamplifier
by OLSR? or *CLS, the overload status bits will stay cleared even
though the overload condition may persist and remain reported
by OVLD? .
OVLD?
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implies that the bias is not overloaded; the transimpedance stage
(V i R ) is overloaded; and the output is overloaded.
bias in F
Reference Clock State
Query the current source and lock state of the reference clock
of the preamplifier. The responses are INTERNAL 0, EXTERNAL 1,
and UNLOCKED 3.
This command complements the RCSR status register described in
Section 3.5.9, but there is no one-to-one correspondence between
the response of RCLK? and bits in RCSR. Once cleared by RCSR?
or *CLS, the reference clock status bits will stay cleared even though
the reference clock state may persist and remain reported by RCLK? .
RCLK?
UNLOCKED
The Interface commands provide control over the interface between
the SIM918 and the host computer.
Reset
Reset the SIM918 to its default configuration.
*RST sets the following:
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1. Gain to 10 V A.
2. Autozero on.
3. Input connected.
4. Input shield to ground.
5. Bias to ground.
6. Bias shield to ground.
7. Reference clock direction to input.
8. The phase-locked loop to inactive when autozero is o (APLL
OFF).
9. Clock oscillator to stop during idle time (AWAK OFF).
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