Glossary
Glossary-8
MP270 Equipment Manual
Release 01/99
Tag
A defined memory location in which values can be read from and written to. This
can be performed from the PLC or via the operating unit. Depending on whether
the tag is linked to the PLC or not, a distinction is made between “global” tags
(process tags) and “local” tags.
Trend curve
Represents values from the PLC on the screen as a continuous line or bar.
TTY
Standard interface for serial data transfer at a defined current level. Transmitter
and receiver are electrically connected.
Summary of Contents for Multi Panel MP270 SIMATIC HMI
Page 8: ...Preface vi MP270Equipment Manual Release01 99 ...
Page 18: ...Functionality 2 4 MP270EquipmentManual Release01 99 ...
Page 36: ...MP270 Operation 4 14 MP270Equipment Manual Release01 99 ...
Page 64: ...System Settings 6 8 MP270Equipment Manual Release01 99 ...
Page 82: ...Unit Description 8 8 MP270Equipment Manual Release01 99 ...
Page 90: ...Maintenance Upkeep 10 4 MP270Equipment Manual Release01 99 ...
Page 92: ...APPENDICES J 2 MP270Equipment Manual Release01 99 ...
Page 98: ...Technical Data A 6 MP270Equipment Manual Release01 99 ...
Page 114: ...System Messages C 14 MP270Equipment Manual Release01 99 ...
Page 144: ...Index Index 8 MP270Equipment Manual Release01 99 ...