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RF Switch Command Reference 29
Chapter 3
DIAGnostic
The DIAGnostic subsystem contains instrument-specific commands is
are not recommended for general programming. For the E1470A, the
DIAG subsystem allows you to open/close individual relays and query
individual relays.
Subsystem Syntax DIAGnostic
:CLOSe <relay>{,<relay>...}
:CLOSe? <relay>{,<relay>...}
:OPEN <relay>{,<relay>...}
:OPEN? <relay>{,<relay>...}
:RELAY?
DIAGnostic:CLOSe
DIAGnostic:CLOSe <relay>{,<relay>...} closes individual relays on the
E1470A. Since these are Form C relays, “closed” means the relay is “set”
(COMMON to NO).
Parameters
Comments Invalid Values. Values other than those listed in the table cause error
2022, “Invalid relay number”.
Closing Relays. To close single relays, use DIAG:CLOS abc.Toclose
multiple relays, use DIAG:CLOS abc,def,ghi,... etc.
80 Relays Maximum. The E1470A has 80 relays. Setting more than 80
relay numbers causes error: -108, “Parameter not allowed”.
Example Closing Relays
!Closes relay 001 (connects
!CH001 to relay 002 in bank 00)
Name Type Range of Values
<relay> numeric 001-003|011-014|021-024|031-034|041-044|
051-056|101-103|111-114|121-124|131-134|
201-203|211-214|221-224|231-234|241-244|
251-256|301-303|311-314|321-324|331-334