Error handling – Parker Hannifin GEM6K User Manual

Page 20

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Error Response

Possible Cause

NTSELP ALREADY ENABLED ON THIS

TASK

NTSELP, which enables program selection via OPTO22

inputs, has already been enabled (if multitasking, it has
been enabled for this specific Task).

OPTION CARD CAN NOT BE USED WITH

ETHERNET - SEE NTFEN

Tried to enable the internal Fieldbus Option card for
PROFIBUS or DeviceNet communication (6Kn-PB and 6Kn-
DN products only) with the OPTEN1 command. You must
disable Ethernet communications with the NTFENØ

command before enabling the Option card. The 6K cannot
communicate over a Fieldbus connection and Ethernet
connection simultaneously.

VARB USED BY OPTION CARD

Tried to map a binary variable to read from or write to an
Allen-Bradley data file, but the variable is already used for
Fieldbus (PROFIBUS or DeviceNet) data transfer functions.

VARIABLE MAPPING CONFLICT, SEE

NTMPRB, NTMPRI, NTMPWI, NTMPWB
MAPPINGS

Tried to map the same 6K VARB or VARI variables for read
and write functions. Or tried to map the same 6K VARB or
VARI variables to another PLC.

Error Handling

The 6K has a Error Status register for logging certain error conditions. If you enable checking
for an error condition (see

ERROR

command), the 6K will branch to the designated error

program (see

ERRORP

command) when it detects the error condition. The Ethernet networking

related Error Status register bits are noted below.

ERROR

Bit #

Cause of the Error

Branch Type
to
ERRORP

How to Remedy the Error

23

Ethernet Client
Connection Error.
(Can’t connect.)

Gosub

Clear the error bit

(

ERROR.23-0), re-establish

the Ethernet connection (nNTCONN1), and
then issue ERROR.23-1.

24

Ethernet Client Polling Error.
(After connect and polling
device for data, polling
timeout occurred. Cause
could be disconnect, client
lost power, etc.)

Gosub

Clear the error bit

(

ERROR.24-0), re-establish

the Ethernet connection (nNTCONN1), and
then issue ERROR.24-1.

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6K