Technical data

When OB 19 is called, ACCU 1 contains additional information that
defines the error in greater detail.
Error identifier
ACCU-1-L ACCU-2-L
Explanation
1A01H —
Data block not loaded for C DB
1A02H —
Data block not loaded for CX DX
1A03H —
Block not loaded for JU(C) FB, OB 1 to
39, PB, SB
1A04H —
Block not loaded for DOU(C) FX
1A05H —
Data block not loaded for OB 254 or
255
1A06H —
Data block not loaded for OB 182
1A07H —
Data block not loaded for
OB150/OB151/OB 153
Note
If you attempt to open a data block that is not loaded, the DBA
register (see Chapter 9) is affected. In this case a loaded data
block must be opened again before accessing DB/DX data.
Load/transfer error
(OB 32)
When you transfer data to data blocks (DB, DX), the CPU compares
the length of the DB that has been opened with the operand in the
transfer operation. If the specified parameter exceeds the actual data
block length, the CPU does not execute the transfer statement to
prevent data in the memory from being overwritten by mistake.
The system program also detects a load/transfer error if a single bit of
a non-existent data word is to be set/reset or scanned.
The system program also detects a load/transfer error if you attempt to
access a data word before you call a data block (using C DBn or
CX DXn).
Table 5-20 LZF - calling a block that is not loaded
Errors in RUN and in RESTART
CPU 928B Programming Guide
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