Specifications

Comments
·
Since the returned value is the memory allocated to the algorithm, it will only
equal the actual size of the algorithm if it was defined by ALG:DEF without its
[<swap_size>] parameter. If enabled for swapping (if <swap_size> included at
original definition), the returned value will be equal to (<swap_size>)*2.
NOTE If <alg_name> specifies an undefined algorithm, ALG:SIZ? returns 0. This can be
used to determine whether algorithm <alg_name> is defined.
·
Returned Value: numeric value up to the maximum available algorithm memory
(this approximately 46k words). The type is int32.
·
*RST Condition: returned value is 0.
ALGorithm[:EXPLicit][:STATe]
ALGorithm[:EXPLicit][:STATe] <alg_name>,<enable> specifies that algorithm
<alg_name> , when defined, should be executed (ON) or not executed (OFF) during
run-time.
NOTES 1. The command ALG:STATE <alg_name>, ON | OFF does not take effect until
an ALG:UPDATE or ALG:UPD:CHAN command is received. This allows
multiple ALG:STATE commands to be sent with a synchronized effect.
2. ALG:STATE places a variable update request in the Update Queue. Do not
place more update requests in the Update Queue than are allowed by the current
setting of ALG:UPD:WINDOW or a “Too many updates — send
ALG:UPDATE command” error message will be generated.
CAUTION! When ALG:STATE OFF disables an algorithm, outputs are left at the last value set
by the algorithm. Depending on the process, this uncontrolled situation could be
dangerous. Make certain that the process is in a safe state before halting the
execution of a controlling algorithm.
The Agilent/HP E1535 Watchdog Timer SCP was specifically developed to
automatically signal that an algorithm has stopped controlling a process. Use of the
Watchdog Timer is recommended for critical processes.
VT1419A Command Reference
ALGorithm
Chapter 6 195
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