Device diagnostic functions

The following EL4374 device information can be read from the CoE:

Index

Name

Meaning

0xF900:01

Power Good

FALSE: There is approx. < 20.4 V at the power contacts. Operation of the device below this limit is not recommended.
Overvoltage is not observed.

0xF900:11

Operating Time

operating time of the device in [min], cannot be deleted

0xF900:12

Device Temperature

current internal terminal temperature in [°C].
Note: this value depends on the installation position, it is usually well above the ambient temperature.

0xF900:13

Min. Device Temperature

minimum value ever observed by the terminal in [°C], cannot be deleted

0xF900:14

Max. Device Temperature

maximum value ever observed by the terminal in [°C], cannot be deleted

0xF900:15

Supply Voltage

Informative display of the power contact voltage, measurement uncertainty ±1.2 V in the range 20..29 V. Measurement is not guaranteed for voltages outside this range!

The status of the 5 terminal LEDs can be read electronically as follows:

Index

Name

Meaning

0xF915:01

RUN

RUN-LED

0xF915:09

Error Ch.1

LED channel 1 (AI)

0xF915:0A

Error Ch.2

LED channel 2 (AI)

0xF915:0B

Error Ch.3

LED channel 3 (AO)

0xF915:0C

Error Ch.4

LED channel 4 (AO)

Device diagnostic functions 1:
Subindices Index F915, exemplary values

Flashing/lighting code in the 1st byte:

Device diagnostic functions 2:
Legend

Examples:

Device diagnostic functions 3:
Examples LED status