Keithley 3700 series Reference Manual page 346

Section 9: Instrument Control Library (ICL)
status.system.*
Attribute
Usage
Remarks
Also see
9-202
TSP-Link system data structure register set.
To read condition, enable and event registers:
enablereg = status.system.condition
enablereg = status.system.enable
enablereg = status.system.event
To write to enable register:
status.system.enable = enablereg
Set enablereg to one of the following values:
0 Clears all bits.
To set EXT bit (B0):
1 or status.system.EXTENSION_BIT
- or -
1 or status.system.EXT
To set a node bit (Bn); n = 1 to 14.
status.system.NODEn

In an expanded system (TSP- Link), this attribute is used to read or write to the
system node registers.

Reading a system node register returns a numeric value whose binary equivalent
indicates which register bits are set. The bits of the system node register are
identified as follows:
B0 - EXT bit B4 - Node 4
B1 - Node 1 B5 - Node 5
B2 - Node 2 B6 - Node 6
B3 - Node 3 B7 - Node 7

For example, assume value 9 is returned for the enable register. The binary
equivalent is 0000000000001001. This value indicates that bit 0 (EXT) and bit 3
(Node 3) are set.

Assigning a value to the status.system.enable attribute sets the extension bit or a
node bit of the system node enable register.
status.system2.* (on page 9-203)
status.system3.* (on page 9-204)
status.system4.* (on page 9-205)
status.system5.* (on page 9-207)
Series 3700 System Switch/Multimeter Reference Manual
B8 - Node 8 B12 - Node 12
B9 - Node 9 B13 - Node 13
B10 - Node 10 B14 - Node 14
B11 - Node 11 B15 - Not used
Document Number: 3700S-901-01 Rev. A / August 2007
.condition
.enable
.event