Series 3700A System Switch/Multimeter Reference Manual
Section 11: TSP command reference
3700AS-901-01 Rev. D/June 2018
11-169
Details
Use of this command is not recommended with the exception of special cases. The default setting
should handle most applications.
This setting affects all DMM functions. Valid values are shown in the table below.
Valid values
Value
Relays connected
dmm.CONNECT_NONE or 0
None
dmm.CONNECT_ALL or 7
All
dmm.CONNECT_TWO_WIRE or 1
2-wire
dmm.CONNECT_FOUR_WIRE or 3
2-wire and sense
dmm.CONNECT_TWO_WIRE_AMPS or 5
2-wire & amp
dmm.CONNECT_AMPS or 4
amp
The relays are bitmapped into the lower 3 bits of the value as shown in the following table.
Relay bitmap
Bit
Value
Relays represented
0
1
2-wire
1
2
sense
2
4
amp
To close a relay, set the appropriate bit to 1.
To open a relay, set the appropriate bit to 0.
An error is generated if:
•
The sense relay bit is set to a 1 and the sense relay with amps is selected. These two settings
correspond to a value of 2 or 6, respectively.
•
The value is less than 0 or greater than 7.
Example
dmm.connect = dmm.CONNECT_TWO_WIRE_AMPS
Connects the DMM 2-wire and amp relays to
the analog backplane.
Also see
None
