Job Specification - Siemens SINUMERIK 840D sl Function Manual

The following steps must be performed as part of a job (read/write):
1. Job specification (Page 1101)
2. Job management: Start job (Page 1102)
3. Job management: Waiting for end of job (Page 1103)
4. Job management: Job completion (Page 1103)
5. Job evaluation (Page 1105)
Flow diagram of a job: See "Job management: Flow diagram (Page 1104)"
14.6.1.2

Job specification

Variable-specific job interface
Each variable that is to be processed in a job, must be specified in the variable-specific job
interface via its parameters. The general identifiers are discussed in more detail later for each
variable that can be accessed from the interface.
DB120x Reading/writing NC data (PLC → NCK)
1)
Byte Bit 7
DBB1000
DBB1001
DBW1002
DBW1004
DBW1006
DBD1008
DBD1012
DBD1016 Write: Data to NC variable x (REAL)
DBD1020 Write: Data to NC variable x (DWORD/DINT)
DBW1024 Write: Data to NC variable x (WORD/INT)
DBB1026 Write: Data to NC variable x (BYTE)
DBB1027 ---
1) DB120x, with x = 0 ... 7 corresponds to variable 1 ... 8.
2) Only for predefined variables of the "Read/write NC variable" user interface
3) Only for variables from DB9910 NC_DATA
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Bit 6 Bit 5
Line index, NCK variable x
Column index, NCK variable x
Write: Data to NC variable x (data type of the variables: 1...4 bytes)
3)
3)
3)
--- ---
Bit 4 Bit 3
Variable index
Area number
---
---
3)
--- ---
P4: PLC for SINUMERIK 828D
14.6 Function interface
Bit 2 Bit 1
2)
--- ---
Data to
NC varia‐
ble x
Bit 0
Write:
3)
1101