IAI PSEL, Руководство по эксплуатации

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[16] System Information
Acquisition
403
z
SYST (Get system status)
Command, declaration Extension
condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
E N, Cnd Cmnd Operand 1 Operand 2 Pst
Optional Optional SYST
Variable
number
Prohibited CP
Applicable models
All models [Refer to Section 5.1 for details of models]
{
[Function] Store the system status (top-priority system error number) in the variable specified
in operand 1.
(Note 1) If the obtained result is “0”, it means no system error is present.
(Note 2) Since the error lists are written in hexadecimals, they must be converted to
decimals.
(Note 3) Relationship of error statuses
System errors
Program errors
Axis errors
Other errors
* An axis error that generates during operation with a program command will be
registered both as a program error and an axis error.
[Example] SYST 1 Read the system error number to variable 1.