Models 707B and 708B Switching Matrix Reference Manual
Appendix C: Status model
707B-901-01 Rev. B / January 2015
C-15
When using a numeric parameter, registers are programmed by including the appropriate
<mask>
value. For example:
*ese 1169
status.standard.enable = 1169
To convert from decimal to binary, use the information shown in the above figure. For example, to set
bits B0, B4, B7, and B10, a decimal value of 1169 would be used for the mask parameter (1169 = 1 +
16 + 128 + 1024).
Reading registers
Any register in the status structure can be read either by sending the common command query
(where applicable), or by including the script command for that register in either the
() or
print(tostring())
command. The
print()
command outputs a numeric value; the
print(tostring())
command outputs the string equivalent. For example, any of the following
commands requests the Service Request Enable Register value:
*SRE?
print(tostring(status.request_enable))
print(status.request_enable)
The response message will be a decimal value that indicates which bits in the register are set. That
value can be converted to its binary equivalent using the information in
(on page C-14). For example, for a decimal value of 37 (binary value of 100101),
bits B5, B2, and B0 are set.
Register programming example
The command sequence below programs the instrument to generate a service request (SRQ) and set
the system summary bit in all TSP-Link nodes when the current limit on channel A is exceeded.
-- Clear all registers.
status.reset()
-- Enable SLOT1_THERMAL bit in questionable register.
status.questionable.enable = status.questionable.SLOT1_THERMAL
-- Set the system summary node QSB enable bit.
status.node_enable = status.QSB
-- Set the QSB bit of the service request enable register.
status.request_enable = status.QSB
