Siemens MCP 398C Function Manual

Detailed Description
2.8 Help function output to PLC (H2)
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
77
DB21, ...
DBB140 - DBB157
H functions 1 to 3
Extended address H functions 1 to 3
Edge evaluation: no Signal(s) updated: Jobcontrolled 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.
DB21, ...
DBB158 - DBB193
F functions 1 to 6
Extended address F functions 1 to 6
Edge evaluation: no Signal(s) updated: Jobcontrolled by NCK
Signal state 1 or
edge change
0 → 1
Up to 6 F functions (one path feed and up to 5 axis-specific feeds for
positioning axes) are made available here simultaneously as soon as the F change
signals are available.
Value range of F function: Floating point (corresponding to the MC5+format)
Value range of the extended address: 0 to 18; integer number
The extended address of the F function is generated from the feed type (path feed or axis-specific
feed) and the axis names.
It is coded as follows:
3DWKIHHGHJ)  HJ) 
0DFKLQHD[LVQXPEHURIWKHSRVLWLRQLQJD[LV
IRUDQD[LVVSHFLILFIHHG
HJ)$>;@ WR

The F functions remain until they are overwritten by new F 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)
Control of programmed F word by the PLC, e.g. through overwriting of the set feed rate override.
Corresponding to .... MD 22240 $MC_AUXFU_F_SYNC_TYPE (instant in time that the F functions are output)

Siemens MCP 398C Specifications

General

Brand	Siemens
Model	MCP 398C
Category	Control Systems
Language	English