Functions

MX370x diagnostic functions
[MX370x functions]

The module MSX-E370x disposes of a diagnostic function which, under certain circumstances, can detect
a short circuit or line break on the primary circuit as well as on the secondary circuit. More...

Functions


Detailed Description

The short-circuit detection on the primary circuit is activated continuously.
The other diagnostic functions are activated by software functions.

Short-circuit
On the primary circuit the supply voltage of the power buffer is controlled. If a short circuit occurs
(between OSC+ and OSC- or OSC- against mass or OSC+ against mass), a voltage drop is detected.
This information is returned by software diagnostic function.
In case of short circuit the power buffer disposes of internal fuses which switch the outputs off.
On the secondary circuit the status of the channel which caused a short circuit (between transducer measurement signal against mass)
is returned by the software function MX370x__TransducerTestSecondaryShortCircuit.

Important !!
The secondary short circuit can not be tested via the MX370x__TransducerTestSecondaryShortCircuit function for the MSX-E370x Mahr modules.
Use the function MX370x__TransducerTestSecondaryConnection to detect if the transducer are OK or not.

Line break
In case of a line break (OSC+ or OSC-) on the primary circuit, the sofware function controls if at least one of the n connected transducers
is not correctly connected.
To do that, the n transducers must be connected on the module and the MX370x__TransducerInitPrimaryConnectionTest must be called to saved the status of the input.
This status is then compared to a new status by the call of the MX370x__TransducerTestPrimaryConnection function.
On the secondary circuit (transducer measurement signal), the status of the channel with a line break is returned by
the software function MX370x__TransducerTestSecondaryConnection.

Important !!
For the MSX-E370x Mahr the function MX370x__TransducerTestSecondaryConnection test if the transducer are OK or not.