Siemens SINUMERIK 828D Function Manual

Z1: NC/PLC interface signals
19.5 Help function output to PLC (H2)
Basic Functions
1664 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
DB21, ...
DBB118 T function 1
Edge evaluation: No Signal(s) updated: job-controlled by NCK
Signal state 1 or
edge change
0 → 1
The T function programmed in an NC block is made available here
as soon as the T change signal is available.
Value range of T functions: 0 to 99 999 999; integer number
The T function remains valid until it is overwritten by a new T function.
Signal state 0 or
edge change
1 → 0
• After the PLC has ramped-up.
• All help functions are deleted before a new function is entered.
Application
example(s)
Control of automatic tool selection.
Special cases,
errors, ......
With T0, the current tool is removed from the tool holder but not replaced by a new tool (default
configuration of the machine manufacturer).
Remark 8 decade T numbers are only available as T function 1.
DB21, ...
DBB129 D function 1
Edge evaluation: No Signal(s) updated: job-controlled by NCK
Signal state 1 or
edge change
0 → 1
The D function programmed in an NC block is made available here
as soon as the D change signal is available.
Value range of D functions: 0 to 999; integer number
The D function remains valid until it is overwritten by a new D function.
Signal state 0 or
edge change
1 → 0
• After the PLC has ramped-up.
• All help functions are deleted before a new function is entered.
Application
example(s)
Implementation of protective functions.
Special cases,
errors, ......
D0 is reserved for deselecting the current tool offset.
DB21, ...
DBB140 - DBB157
H functions 1 to 3
Extended address H functions 1 to 3
Edge evaluation: No Signal(s) updated: job-controlled by NCK
Signal state 1 or
edge change
0 → 1
Up to 3 H functions programmed in an NC block are made available here simultaneously as soon as
the H change signals are available.
Value range of the H function: Floating point (corresponding to the MC5+format)
Value range of the extended address: 0 to 99; integer number
The H functions remain valid until they are overwritten by new H functions.
Signal state 0 or
edge change
1 → 0
• After the PLC has ramped-up.
• All help functions are deleted before a new function is entered.
Application
example(s)
Switching functions on the machine.

Siemens SINUMERIK 828D Specifications

General

Control Type	CNC
Operating System	Windows Embedded
Processor	Intel Atom
Display	10.4" color TFT display
Interfaces	Ethernet, USB
Programming	ShopMill, ShopTurn
Operation Panel Size	10.4"
Protection Class	IP65
PLC Memory	2 MB
Spindle Capacity	4 spindles
Hard Drive	CompactFlash