Technical data

Parameter error
(OB 30)
An illegal parameter occurs when an operation is programmed with a
parameter that is not permitted for the particular CPU (e.g. calling a
reserved data block), or when a non-existent special function is called.
If the CPU detects an illegal parameter, the system program interrupts
the execution of the user program and calls organization block
OB 30,
if it is loaded.
When OB 30 is called, ACCU 1 contains additional information that
defines the error in greater detail.
Error identifier
ACCU-1-LACCU-2-L
Explanation
(illegal parameter in...)
1821H —
C DB 0, 1, 2
182BH —
JU(C) OB 0
182CH —
JU(C) OB > 39: special function does
not exist
182DH —
CX DX 0, CX DX 1, CX DX 2
182EH —
L FW/T FW/L PW/T PW/L OW/T
OW/L DD/T DD/DO FW 255
182FH —
L IW/T IW/L QW/T QW 127
1830H —
L FD/T FD 253, 254, 255
1831H —
L ID/T ID/L QD/T QD 125,
126, 127
1832H —
RLD/RRD/SSD/SLD 33-255
1833H —
SLW/SRW/LIR/TIR 16-255
1834H —
SED/SEE 32-255
1835H —
A=/AN=/O=/ON=/S=/RB=/==/
RD=/FR=/SP=/SD=/SEC=/SSU=/
SFD=/L=/LD=/LW=/T= 0, 127-255
1836H —
DO=/LWD= 0, 126-255
1837H —
A S/O S/S S/=S/AN S/ON S/R S
byte number > 1023
1838H —
A S/OS/S S/=S/AN S/ON S/RS
bit number > 7
1839H —
L SY/T SY parameter>1023
183AH —
L SW/T SW parameter > 1022
Table 5-19 BCF parameter error
Errors in RUN and in RESTART
CPU 928B Programming Guide
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