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Appendix B. Error Messages
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| Explanation | |
SNP:#1 FYI. The MapDesc called | The length of the Map Descriptor defined to expose driver | ||||
<%s> is too short. |
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| statistics must be at least 660.5 | |
SNP:#2 FYI. You could have | You may safely ignore this message. Read Appendix B.1 | ||||
used a MapDesc called <%s> to | for information on how to expose the driver’s | ||||
expose diagnostic info. |
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| communication statistics using a Data Array. | ||
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| The driver is required to use the larger of its own or the |
SNP:#3 FYI. SNP device requires | PLC’s T1 (Inter message) timer. This message is | ||||
produced when the PLC returns a T1 timer that is larger | |||||
inter msg timer < timeout. | than the driver’s timeout. Using this timer will mean that | ||||
Nid=<%s>. |
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| every message will timeout. Increase the timeout for the | |
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| Node, connection or Map Descriptor as appropriate.5 |
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| A connection request has been received for the Node |
SNP:#4 | Error. | Cant | emulate | named in the error message but this Node has not been | |
Node=<%s> |
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| defined in the CSV file. The connection has not been | |
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| established.5 |
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| This could result from a corrupted message or it may |
SNP:#5 | Err. | Total | bytes | indicate an unexpected/unsupported aspect of the SNP | |
expected/rcvd=%d/%d |
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| protocol. If the message occurs frequently, take a log and | ||
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| report the error to FieldServer. |
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| This message requires no action. It reports the T1 timer |
SNP:#6 FYI. T1 timer set to | value selected by the slave in milliseconds. If the value is | ||||
<%ld> mSec. |
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| large then this will slow the communications rate and you | |
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| may wish to reconfigure the slave. |
SNP:#7 FYI. T1 timer reset to | This is the FieldServer slave reporting its T1 timer after a | ||||
<%ld> mSec. |
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| Client has established a connection No action is required. | |
SNP:8 FYI. Subsequent connect | No action is required. A Client has attempted to re- | ||||
response ignored. NName=<%s> | establish a connection that is already open. | ||||
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| This message uses two lines of the error log. It is printed |
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| when a slave declines a request. The major and minor |
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| faults are reported. These numbers are printed in |
SNP:9 | Err. Device | declined | hexadecimal. See Appendix C.3 for further details. The | ||
request. | Mjr=%x(h) | Min=%x(h) | message reports the Map Descriptor which generated the | ||
Possible | Offending Poll | =<%s> | rejected poll, the data type, the address and the number of | ||
addr=%d length=%d |
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| elements being requested. Often this message will be the | ||
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| result of a poll that requests data past the end of a PLC |
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| data table or when the length is based on a bit count but |
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| the poll actually requests bytes.5 |
SNP:10 | Err. | Wrong | msg | This message is reported when the driver receives an | |
type=%d(h) mbox=%x(h) |
| unexpected SNP message. Record this information, take | |||
| a log and report the error to FieldServer. | ||||
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5Edit the CSV, correct the problem and reset the FieldServer
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldServer.com Tel: (408)
