Keyence Visual KV Series Manual de usuario descargar pdf (Pagina 285)

7.5 KV Mode Programming

KV-300 Series Only

KV-300

KV-10/80

Chapter 7 KV-L2 Serial Interface Module

1-261

E2 Program

unregis-

tered

• "M1" was transmitted with no

program stored in the KV-300

CPU.

• Reading of timer/counter was

attempted.

• Register a program into the

KV-300 CPU.

• Check the program for the

timer/counter number being

used and specify it.

E3 CPU fault • Hardware error was detected

in a KV-300 CPU.

• Turn the power to the KV-300

OFF and then ON again. If

the cause of the error is not

corrected, the CPU may be

faulty. Contact your nearest

KEYENCE office.

E4 Write-

protected

• Attempt was made to change

the preset value of a counter,

timer, or CTC in a write-

protected program.

• Write-enable the program,

and change the preset value.

E5 CPU error • "M1" was transmitted before

an error message was

cleared from the KV-300.

• Clear the error message from

the KV-300 CPU, and remove

the cause of the error.

Error code list

Error codes included in responses to the KV-300 CPU error check command (?E)

as well as error descriptions, causes of error, and remedies are listed below.

Error

Code Description Cause Remedy

00 No error — —

10 CALL nest

error

• Subroutines are nested to four

levels or more.

• These errors may occur when

a program is executed. Check

the program while paying

particular attention to usage of

subroutines and the INT

instruction, and restore the

program accordingly.

11 FOR nest

erro

• FOR-NEXT instructions are

nested to eight levels or more.

12 INT nest

error

• Five levels or more of inter-

rupts occurred simultaneously.

13 MPS nest

error

• MPS/MPP instructions are

nested to eight levels or more.

20 Memory

erased

• Contents of RAM are erased.

All data in data memory and

current values of counters in

the KV-300 CPU are cleared.

• Check data in data memory

and current values of counters,

and re-enter correct data. The

KV-300 CPU returns to normal

operation after the error is

cleared.

Scan time

error

• Scan time exceeds 300 ms. • Check the program again.

• Be sure that there is no

excessive repetition using the

FOR-NEXT loop.

• Be sure that an interrupt is not

executed at a higher rate.

40 NO PRO-

GRAM

• An attempt was made to

operate the KV-300 CPU with

no program stored.

• Write a program into the

KV-300 CPU.

50 SND/RTN

failure

• Hardware error was detected

in a KV-300 CPU.

• Turn the power to the KV-300

OFF and then ON again. If

the cause of the error is not

removed, the KV-300 CPU

may be faulty. Contact

nearest KEYENCE office.

51 Division by

zero

52 Address

error

53 Invalid

instruction

54 Watchdog

timer error

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