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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Diagnosis
During the diagnosis, the "state of health" of the device is checked. It is to be found out if and what
→faults are given in the device.
Depending on the device, the inputs and outputs can also be monitored for their correct function.
- wire break,
- short circuit,
- value outside range.
For diagnosis, configuration and log data can be used, created during the "normal" operation of the
device.
The correct start of the system components is monitored during the initialisation and start phase.
Errors are recorded in the log file.
For further diagnosis, self-tests can also be carried out.
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Dither
Dither is a component of the
→PWM signals to control hydraulic valves. It has shown for
electromagnetic drives of hydraulic valves that it is much easier for controlling the valves if the control
signal (PWM pulse) is superimposed by a certain frequency of the PWM frequency. This dither
frequency must be an integer part of the PWM frequency.
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DLC
D ata L ength C ode = in CANopen the number of the data bytes in a message.
For
→SDO: DLC = 8
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DRAM
DRAM = D ynamic R andom A ccess M emory.
Technology for an electronic memory module with random access (Random Access Memory, RAM).
The memory element is a capacitor which is either charged or discharged. It becomes accessible via a
switching transistor and is either read or overwritten with new contents. The memory contents are
volatile: the stored information is lost in case of lacking operating voltage or too late restart.
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DTC
DTC = D iagnostic T rouble C ode = error code
In the protocol J1939 faults and errors well be managed and reported via assigned numbers – the
DTCs.
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E
ECU
(1) E lectronic C ontrol U nit = control unit or microcontroller
(2) E ngine C ontrol U nit = control device of a engine
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EDS-file
EDS = E lectronic D ata S heet, e.g. for:
• File for the object directory in the CANopen master,
• CANopen device descriptions.
Via EDS devices and programs can exchange their specifications and consider them in a simplified
way.