Specifications

RIGOL Chapter 2 Command System
2-112 M300 Programming Guide
ROUTe:SCAN
Syntax ROUTe:SCAN (@<scan_list>)
ROUTe:SCAN?
Description
Add the specified channels into the scan list.
Parameters
Name
Type
Range
Default
<scan_list>
Scan
List
One or more channels (for the multiplexer, DIO and
TOT channels), the rules are as follows:
(@101): channel 01 on the module in Slot1;
(@101:103): channel 01 through 03 on the module
in Slot1;
(@101:103,301,406:408): channel 01 through 03 on
the module in Slot1, channel 01 on the module in
Slot3 and channel 06 through 08 on the module in
Slot4;
None
Explanation  The channels specified in <scan_list> overwrites the current scan list. To start the
scan, use the
INITiate or READ? command.
 To remove all the channels from the scan list, issue the ROUT:SCAN (@) command.
 The instrument scans the list of channels in ascending order from Slot1 through slot 5.
The instrument stores the channel numbers in ascending order even when you have
already defined the order of the channels in the scan list. For Example, when the
channel numbers in the scan list are defined as (@211:201), the instrument stores the
channel numbers in 201, 202, 203… order.
 You can use either the DMM module or an external multimeter to make measurements
of the specified channels. However, M300 only allows one scan list at a time; you
cannot measure some channels using the DMM module and others using an external
multimeter. Readings are stored in the memory only when the DMM module is used
(except the DIO and TOT channels).
 You can store at most 10,0000 readings in the memory and all the readings are
automatically time stamped. If the memory overflows, the new readings will overwrite
the oldest readings stored.
 Each time you start a new scan, the instrument clears all the readings stored in the
reading memory from the previous scan. Therefore, the readings in the memory are
always from the most recent scan.
 If you abort a scan that is running (refer to the
ABORt command), the instrument will
terminate the measurement (readings are not cleared from the memory) and you
cannot resume the scan from where it left off. Note that if you initiate a new scan, all
the previous readings are cleared from the memory.
 The current scan list is stored in the non-volatile memory (refer to
Appendix C:
Non-volatile Memory) and will not be cleared when power is turned off (the power-on
value is set to “LAST”, refer to the
SYSTem:UTIlity:CONFigure:POWEron command).
 <scan_list> overwrites the current scan list.
Return
Format
The query returns the channels in the scan list. The return format is as follows.
Format explanation:
#210(@301,302)
①followed by 2 characters ②followed by 10 characters ③channel numbers