HEIDENHAIN TNC 640 User Manual

Programming Q Parameters | Additional functions
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
FN 29: PLC – Transfer values to the PLC
NOTICE
Danger of collision!
Changes to the PLC can result in undesired behavior and
serious errors (e.g., inoperability of the control). For this reason,
access to the PLC is protected by password. The FN function
provides HEIDENHAIN as well as your machine tool builder and
suppliers the ability to communicate with the PLC from an NC
program. It is not recommended that the machine operator or
NC programmer use this. There is risk of collision during the
execution of the function and during the subsequent processing!
Only use the function in consultation with HEIDENHAIN, the
machine tool builder, or the supplier.
Comply with the documentation from HEIDENHAIN, the
machine tool builder, and suppliers.
The FN 29: PLC function transfers up to eight numerical values or
Q parameters to the PLC.

HEIDENHAIN TNC 640 Specifications

General

Control Type	CNC
Axes	Up to 18 axes
Interfaces	Ethernet, USB, RS-232
Spindle Control	Yes
PLC	Integrated
Storage	SSD
Programming Languages	DIN/ISO
Safety Features	safety functions according to EN ISO 13849-1
Dimensions	Varies based on configuration
Weight	Varies based on configuration
Operating System	Windows