E4

bAt
(battery)

8

22

0

0

0

Empty or missing

E4

FLd
(flash disk)

9

19

5

0...n

0

Medium has used 80 % of its spare capacity

E4

FLd
(flash disk)

53

19

5

0

0

Root partition has 15% or less free space left

E4

iob
(I/O bus)

257

Module number

1

Channel number

0

Wrong measurement, false temperature at the compensation channel

E4

iob
(I/O bus)

258

Module number

1

Channel number

0

AI531: wrong measurement, potential difference is too high;

CD522: PWM duty cycle out of duty area

E4

iob
(I/O bus)

260

Module number

1

Channel number

0

Measurement overflow

Check channel wiring and sensor power supply.

E4

iob
(I/O bus)

263

Module number

1

Channel number

0

Measurement underflow at analog input

Check channel wiring and sensor power supply.

E4

iob
(I/O bus)

266

Module number

1

Channel number

0

Short circuit and cut wire or "out of range"

E4

iob
(I/O bus)

267

Module number

1

Channel number

0

Output/process voltage to small/low.

E4

iob
(I/O bus)

302

Module number

1

Channel number

0

External voltage feeded at the output clamps.

E4

iob
(I/O bus)

303

Module number

1

Channel number

0

Short circuit at the analog input

Check channel wiring

E4

iob
(I/O bus)

304

Module number

1

Channel number

0

Analog value overflow or broken wire at an analog input.

E4

iob
(I/O bus)

530

Module number

1

Channel number

0

Internal fuse at 0 V is defect. 0 V not connected with GND.

E4

iob
(I/O bus)

559

Module number

1

Channel number

0

Short circuit at the digital output

Check channel wiring

E4

iob
(I/O bus)

772

Module number

1

Channel number

0

Measurement overflow at an analog output

Check channel wiring

E4

iob
(I/O bus)

775

Module number

1

Channel number

0

Measurement underflow at analog output

Check channel wiring

E4

iob
(I/O bus)

796

Module number

1

0

0

Different configuration

E4

iob
(I/O bus)

8482

Module number

0

-

0

Timeout while waiting for ready status

E4

iob
(I/O bus)

8483

Module number

0

-

0

Timeout during parameterization

E4

iob
(I/O bus)

9480

Module number

0

-

0

I/O module removed from hot swap terminal unit or defective module on hot swap terminal unit.

Plug I/O module, replace I/O module

E4

iob
(I/O bus)

9480

Module number

0

0

0

Module removed from hot swap terminal unit

E4

iob
(I/O bus)

9500

Module number

0

-

0

Wrong I/O module replugged on hot swap terminal unit

Remove wrong I/O module and plug projected I/O module

E4

iob
(I/O bus)

9514

Module number

0

-

0

No communication with I/O module on hot swap terminal unit

Replace I/O module

E4

iob
(I/O bus)

9526

Module number

0

-

0

I/O module does not support hot swap

Power off system and replace I/O module

E4

iob
(I/O bus)

9526

Module number

0

0

0

Module on hot swap terminal unit does not support hot swap functionality

E4

iob
(I/O bus)

9736

Module number

0

-

0

Hot swap terminal unit required, but not found

E4

iob
(I/O bus)

9764

Module number

0

0

0

Defective hot swap terminal unit

E4

iob
(I/O bus)

9770

Module number

0

-

0

No communication with hot swap terminal unit

Restart, if error persists replace terminal unit

E4

iob
(I/O bus)

16172

Module number

0

-

0

Has not passed factory test

E4

iob
(I/O bus)

16173

Module number

0

-

0

No process voltage UP or UP3

Check process voltage