IFM Ecomat 100 Mobile CR0301, Programming Manual

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ifm Programming Manual ecomatmobile CabinetController (CR0301) Runtime System V05 2016-04-21
Glossary of Terms
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PDU
PDU = P rotocol D ata U nit.
The PDU is an item of the
→CAN protocol →SAE J1939. PDU indicates a part of the destination or
source address.
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PES
P rogrammable E lectronic S ystem ...
• for control, protection or monitoring,
• dependent for its operation on one or more programmable electronic devices,
• including all elements of the system such as input and output devices.
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PGN
PGN = P arameter G roup N umber
PGN = PDU format (PF) + PDU source (PS)
The parameter group number is an item of the
→CAN protocol →SAE J1939. PGN collects the
address parts PF and PS.
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Pictogram
Pictograms are figurative symbols which convey information by a simplified graphic representation.
(
→ chapter What do the symbols and formats mean?
(
→ page
6 ))
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PID controller
The PID controller (proportional–integral–derivative controller) consists of the following parts:
• P = proportional part
• I = integral part
• D = differential part (but not for the controller CR04nn, CR253n).
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PLC configuration
Part of the CODESYS user interface.
► The programmer tells the programming system which hardware is to be programmed.
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CODESYS loads the corresponding libraries.
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Reading and writing the periphery states (inputs/outputs) is possible.
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Pre-Op
Pre-Op = PRE-OPERATIONAL mode.
Operating status of a CANopen participant. After application of the supply voltage each participant
automatically passes into this state. In the CANopen network only
→SDOs and →NMT commands
can be transferred in this mode but no process data.
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Process image
Process image is the status of the inputs and outputs the PLC operates with within one
→cycle.
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At the beginning of the cycle the PLC reads the conditions of all inputs into the process image.
During the cycle the PLC cannot detect changes to the inputs.
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During the cycle the outputs are only changed virtually (in the process image).
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At the end of the cycle the PLC writes the virtual output states to the real outputs.