Gemini GV6K and Gemini GT6K Programmer's Guide
Gemini GV6K and Gemini GT6K Programmer's Guide
Gemini GV6K and Gemini GT6K Programmer's Guide
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Error Response<br />
SEE NTIO<br />
INVALID SERVER TYPE<br />
NETWORK INPUTS AND OUTPUTS CANNOT<br />
BE ASSIGNED TO A VARSHO<br />
NETWORK IP ADDRESS CANNOT BE<br />
CHANGED WHILE CONNECTION IS<br />
OPEN, SEE NTCONN<br />
NO NETWORK IP ADDRESS SPECIFIED<br />
FOR CONNECTION, SEE NTIP<br />
NTFEN MUST BE 1 TO USE THIS<br />
COMMAND<br />
NTRATE MUST BE 0 TO CHANGE NTFEN<br />
NTSELP ALREADY ENABLED ON THIS<br />
TASK<br />
OPTION CARD CAN NOT BE USED WITH<br />
ETHERNET - SEE NTFEN<br />
VARB USED BY OPTION CARD<br />
VARIABLE MAPPING CONFLICT, SEE<br />
NTMPRB, NTMPRI, NTMPWI, NTMPWB<br />
MAPPINGS<br />
Possible Cause<br />
\ANO, \TANI, \TANO, \TIN, or \TOUT comm<strong>and</strong>), but that<br />
I/O point was configured with the NTIO comm<strong>and</strong> to be<br />
different I/O type.<br />
Tried an OPTO22-related comm<strong>and</strong> (\TANI, \TANO, \TIN,<br />
\TOUT, \TIO, \IN, \OUT, \ANI, \ANO, etc.) for a non-<br />
OPTO22 connection.<br />
Tried to assign the status of OPTO22 I/O to a VARSHO<br />
variable.<br />
Tried to execute an NTIP comm<strong>and</strong> while the connection is<br />
open.<br />
Tried to connect (nNTCONN1) to a server # that has not yet<br />
been established with the NTIP comm<strong>and</strong>, or tried to<br />
connect to a server in an incompatible subnet.<br />
(Peer-to-peer connection only) Tried to execute an NTRATE<br />
comm<strong>and</strong> while NTFEN is set to a value other than NTFEN1.<br />
(Peer-to-peer connection only) Tried to execute an NTFEN<br />
comm<strong>and</strong> while NTRATE is set to a non-zero value.<br />
NTSELP, which enables program selection via OPTO22<br />
inputs, has already been enabled (if multitasking, it has<br />
been enabled for this specific Task).<br />
Tried to enable the internal Fieldbus Option card for<br />
PROFIBUS or DeviceNet communication (6Kn-PB <strong>and</strong> 6Kn-<br />
DN products only) with the OPTEN1 comm<strong>and</strong>. You must<br />
disable Ethernet communications with the NTFENØ<br />
comm<strong>and</strong> before enabling the Option card. The 6K cannot<br />
communicate over a Fieldbus connection <strong>and</strong> Ethernet<br />
connection simultaneously.<br />
Tried to map a binary variable to read from or write to an<br />
Allen-Bradley data file, but the variable is already used for<br />
Fieldbus (PROFIBUS or DeviceNet) data transfer functions.<br />
Tried to map the same 6K VARB or VARI variables for read<br />
<strong>and</strong> write functions. Or tried to map the same 6K VARB or<br />
VARI variables to another PLC.<br />
Error H<strong>and</strong>ling<br />
The 6K has a Error Status register for logging certain error conditions. If you enable checking<br />
for an error condition (see ERROR comm<strong>and</strong>), the 6K will branch to the designated error<br />
program (see ERRORP comm<strong>and</strong>) when it detects the error condition. The Ethernet networking<br />
related Error Status register bits are noted below.<br />
ERROR<br />
Bit #<br />
Cause of the Error<br />
23 Ethernet Client<br />
Connection Error.<br />
(Can’t connect.)<br />
Gosub<br />
24 Ethernet Client Polling Gosub<br />
Error. (After connect <strong>and</strong><br />
polling device for data,<br />
polling timeout occurred.<br />
Cause could be<br />
disconnect, client lost<br />
power, etc.)<br />
Branch Type How to Remedy the Error<br />
to ERRORP<br />
Clear the error bit (ERROR.23-0), reestablish<br />
the Ethernet connection<br />
(nNTCONN1), <strong>and</strong> then issue ERROR.23-1.<br />
Clear the error bit (ERROR.24-0), reestablish<br />
the Ethernet connection<br />
(nNTCONN1), <strong>and</strong> then issue ERROR.24-1.<br />
Chapter 2. Communication 55
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