Specification_SIPLACE_S23HM_eng.pdf - 第29页

28 Description Productivity c an be further en- hanced by knowing exactly the current condit ion and utilization rate of the system, about idle times which occur and their causes. This inf ormation is sup- plied by ”prod…

Description

A single placement program on the

line computer is sufficient for all of

the SIPLACE machines in a pro-

duction line. It contains the neces-

sary data for population of a spe-

cific PCB type - from the

dimensions of the PCB over the

placement positions of the com-

ponents to the complete compo-

nent and GF library. The program

can be created manually by means

of editors in the editors in the

SIPLACE line computer or - simple

and time-saving - can be generated

automatically from the CAD data of

the PCB. The converted data im-

ported with the aid of a CAD post-

processor can be transferred into

the data pool of the SIPLACE line

computer via a standard LAN. The

placement programs are then

transferred from the HOST com-

puter directly into the line com-

puter’s master data.

The CAD postprocessor can be

variable adjusted insofar as the se-

quence of the data and the format

is concerned. The data to be con-

verted must meet the following

preconditions:

ASCII data

Table-oriented: on line per

placement position

Separators can be variably ad-

justed but must be identical for

all fields

Minimum information content:

component name, X-, Y-, angle

position.

The central filing of the line com-

puter (master) data enables an

automatic link to higher-level com-

puter systems. Revisions there-

fore automatically affect all con-

nected, appropriately configured

lines. It is possible to switch be-

tween local and central data man-

agement at any time.

Placement programs of earlier

SIEMENS SMD placement ma-

chines which could be run on an

SP-120/HS-180 line or on MS-1xx

machines (BP and BM files) can be

transferred using a conversion

program integrated into the

SIPLACE line computer. It is also

possible to continue to use post-

processors for SP/HS and MS data

formats. The data are converted

into the SIPLACE format and

stored in the line computer. There

they must be supplemented by

additional required information

such as PCB dimensions, configu-

rations of subpanels in the cluster

and set-ups.

An additional computer which has

the same hardware and software

configuration as the line computer

can be utilized as an external pro-

gramming station. Even if physi-

cally separate from the production

equipment, it manage placement

programs and other data for a

number of lines link them via LAN

to the line computers in produc-

tion.

The file format <set-upname>.rt,

in which set-up data in simple form

can be generated, makes it possi-

ble to import set-ups which were

programmed on systems of the

customer or third-party manufac-

turers. It facilitates the program-

ming on external systems and the

use of higher-level production con-

trols. This file is also kept in table-

oriented ASCII form and can there-

fore be created very easily.

The aim of SIPLACE set-up optimi-

zation is to reduce placement

times and non-productive machine

times. In this process, attention

dedicated to the optimal balancing

of the entire line, not just the

minimum placement time of each

individual machine. The nozzle al-

location of the placement heads is

adapted to the individual PCB. To

reduce travel distances, the opti-

mal erection location for the feeder

and the best sequence of place-

ment are calculated. As long as the

component feeding capacity of a

SIPLACE line permits it, the set-up

optimization can combine a num-

ber of products in a single set-up.

An optional add-on is the optimiza-

tion of the sequence of placement

which optimally combines a rela-

tively large number of products in

a number of set-ups. Attention is

directed to the changeover and

set-up times, not just to the short-

est possible throughput times and

optimal balancing of the entire line.

SIPLACE Software Architecture:

Creation of Placement Programs

Generation of the placement program from CAD data of the PCB

Data conversion Configurable postprocessor of the line computer

or external postprocessor of the CAD system

manufacturer or another manufacturer

Data transfer Standard LAN

(Ethernet TCP/IP and FTP or NFS)

or diskettes (MS-DOS; UNIX)

Description

Productivity can be further en-

hanced by knowing exactly the

current condition and utilization

rate of the system, about idle

times which occur and their

causes. This information is sup-

plied by ”production and machine

data acquisition systems”

(PDA/MDA). The SIPLACE Ma-

chine Data Management System

collects all relevant data for the line

and individual stations and pres-

ents it graphically. The data in-

cludes analyses of availability, pick-

up error rates, placement speed,

MTBF and MTTR as well as for

track error display with component

item number and package form

number. This speedy, clear view of

the operating behavior provides

starting points for possible im-

provements.

SIPLACE Software Architecture:

Machine Data Management System

Screen Shots

Configuration of a Production Line with GEM Computer

Description

The function of Semiconductor

Equipment Communication Stan-

dard (SECS) II is to uniformly de-

fine communication interfaces of

production equipment made by

different manufacturers. It was fur-

ther developed into the GEM

Standard (General Equipment

Model) which is also suitable for

SMT production equipment. In this

case, an external user-specific

production computer (host) is con-

nected via LAN to a GEM com-

puter integrated into the machine

control. The interface is used by

host systems created by the user

or applications software from third-

party manufacturers.

The SECS II / GEM communication

protocol supports central control,

process control and their data

management of complete produc-

tion lines on the line computer.

Using Statistical Process Control

(SPC), for example, it is possible to

implement preventive mainte-

nance which prevents or greatly

reduces production down times.

SIPLACE Software Architecture:

Data Interface SECS II / GEM (Option)

Factory LAN GEM

Functions

Identification of the equipment

Real Time Access-

ing

Product data, error messages, machine states,

measurement results

Saving Information, connections

(connection set-up, resynchronization

SIPLACE LAN

Line Computer

HOST

GEM