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B Terms - Siemens SINUMERIK 840D Operator's Manual

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A
Appendix
B
Terms
B
Terms
A
Absolute dimension
Acceleration with jerk
limitation
Access authorizations
Address
Alarms
Analog input/output
module
A-144
Key terms are given in alphabetical order. Terms which appear in the
explanatory part and for which there is a separate entry are referred to
with the "->" symbol.
A destination for an axis movement is defined by a dimension that
refers to the origin of the currently active coordinate system. See also
-> incremental dimension.
In order to optimize the acceleration response of the machine whilst
simultaneously protecting the mechanical components, it is possible
to switch over in the machining program between abrupt acceleration
and continuous (jerk-free) acceleration.
The CNC program blocks and data are protected via a 7-stage access
authorization procedure.
• three password levels for system manufacturers, machine
manufacturers and users, plus
• four keyswitch positions which can be evaluated via the PLC.
An address is the identifier for a certain operand or operand range,
e.g. input, output etc.
All alarms and -> messages are output on the operator panel in plain
text with the date and time and a symbol indicating the cancel
criterion. The display is divided into alarms and messages.
1. Alarms and messages in the parts program
Alarms and messages can be displayed as plain text directly from
the parts program.
2. Alarms and messages from the PLC
Alarms and messages from the machines can be displayed
as plain text from the PLC program. No additional function block
packages are required to do this.
Analog input/output modules are signal formers for analog process
signals.
Analog input modules convert analog measured values into digital
values which can be processed in the CPU.
Analog output modules convert digital values into analog output
signals.
SINUMERIK 840D/840Di/810D Operator's Guide Handheld Terminal 6 (BAH) - 03.04 Edition
A
03.04
 Siemens AG, 2004. All rights reserved.

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Sinumerik 840diSinumerik 810dHt6

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