Siemens SINUMERIK 840Di sl Operating Manual page 448

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Appendix
B Terms
B Terms
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Axes
Axis identifier
Axis address
Axis name
Address
Alarms
Drive
User-defined variable
A-448
Important terms are listed in alphabetical order. For terms, that appear
in the explanation and for which there is a dedicated entry, reference
is made using →.
In accordance with their functional scope, the CNC axes are
subdivided into:
• Axes: Interpolating path axes
• Auxiliary axes: Non-interpolating feed and positioning axes with an
axis-specific feed rate. Auxiliary axes are not involved in the actual
machining, and include for example tool feeders and tool
magazines.
Axes are labeled in accordance with DIN 66217 (for a clockwise
orthogonal → coordinate system) with the letters X,Y, Z.
→ Rotary axes which rotate about X,Y,Z are labeled with the letters A,
B, C. Additional axes parallel to the above can be identified with
further address letters.
See → Axis identifier
See → Axis identifier
An address is the identifier for a certain operand or operand range,
e.g., input, output, etc.
All → messages and alarms are displayed on the operator panel in
plain text with date and time as well as the appropriate symbol for the
delete criterion. Alarms and messages are displayed separately.
1. Alarms and messages in the part program
Alarms and messages can be displayed directly from the part
program in plain text.
2. Alarms and messages from PLC
Alarms and messages relating to the machine can be displayed
directly from the PLC program in plain text. No additional function
block packages are required for this purpose.
•
•
Users can define variables in the → part program or data block (global
user data) for their own use. A definition contains a data type
specification and the variable name. See also → System variable.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
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01/2008
© Siemens AG 2008 All rights reserved.