Chroma 6460 - Page 55

Remote Operation
5-7
*IDN? Return the AC source identification
Return Parameter Chroma ATE 6490, 1234, 2.01
Chroma ATE : Company name
6490 : Model name
1234 : Serial number
2.01 : Firmware version number
*OPC?, Operation Complete Query; this query returns an ASCII “1” when all pending
operations are completed.
*RCL<n> Restore the values of the specific group which is previously stored in
memory.
Parameter 0 - 2
*RST This command resets the ac source to the following states:
Item
Value
OUTPUT :STATE
OFF
FREQ
60.0
VOLT
0.0
CURR:LIMIT
15.0
VOLT:LIMIT
300.0
INST:COUP
ALL
INST:NSEL
1
*SAV<n> Save the values into the specific group in memory.
*STB?, This query returns the Status Byte register (STB). The status byte can be read
with either a serial poll or the *STB? Common query. If it is read with a serial
poll, the RQS bit is sent for the bit 6 position and then cleared. If it is read with
*STB?, MSS bit is sent but not cleared.
Bit configuration of Status Byte Register
Bit position
7
6
5
4
3
2
1
0
Condition
OPER
MSS
ESB
MAV
QUES
---
---
---
RQS
Bit Weight
128
64
32
16
8
RQS: Request service bit
MSS: Master status summary bit
ESB: Event status summary bit
MAV: Message available summary bit
QUES: Questionable status summary bit
OPER: Operation status summary bit
*SRE This command sets the content of the Service Request Enable register (SRE), which
determines which events of the Status Byte Register (STB) are allowed to set the
Master Status Summary (MSS) bit and the Request for Service Summary (RQS) bit.
If a bit is 1 in SRE and its associated event bit in STB transitions to true, bit 6 of STB
is then set true.