Siemens SIMATIC S7-1200 - Page 312

Basic instructions
8.8 Program control operations
S7-1200 Programmable controller
312 System Manual, V4.2, 09/2016, A5E02486680-AK
Structure components
Data type
Description
0
1 Offset
2
Area
3 Location Scope Number
4
Area
Offset
5
Area
DB no.
Offset
6 PtrNo.
/Acc
Area DB no. Offset
7 PtrNo. /
Acc
Slot No. /
Scope
Area DB no. Offset
OPERAND_NUMBER
UInt
Operand number of the machine command
POINTER_NUMBER_
LOCATION
UInt (A) Internal pointer
SLOT_NUMBER_SCOPE
UInt
(B) Storage area in internal memory
DATA_ADDRESS
NREF
Information about the address of an operand
AREA Byte (C) Memory area:
• L: 16#40 – 4E, 86, 87, 8E, 8F, C0 – CE
• I: 16#81
• Q: 16#82
• M: 16#83
• DB: 16#84, 85, 8A, 8B
DB_NUMBER
UInt
(D) Number of the data block
OFFSET
UDInt
(E) Relative address of the operand
GET_ERROR_ID
Table 8- 147 GetErrorID instruction
LAD / FBD
SCL
Description
GET_ERR_ID();
Indicates that a program block execution error has occurred and reports
the ID (identifier code) of the error.
Table 8- 148 Data types for the parameters
Parameter
Data type
Description
ID
Word
Error identifier values for the ErrorStruct ERROR_ID member