Keyence IV Series User Manual download pdf (Page 84)

5-26

- IV Series User’s Manual (Field Network) -

Data allocations in the data I/O communication

z

Device Status Words Address 0 to 15: Error/status/status result information

The Bits at Address 0 to 15 of the Device Status Words have the following functions:

Address

Data

type*

Item Content Data content

0 to 1 WORD Error code

Displays the currently occurring

error code.

0 to 128

2 to 3 WORD Warning code

Displays the currently occurring

warning code.

0 to 128

4 to 5 WORD

Number of remaining

buffers

Displays the number of status

results that can be buffered, if

handshake control is [Enabled].

0 to 10

6 to 7 WORD Checksum

Displays the current sensor

setting status using an arbitrary

5-digit integer.

0 to 65535

8 to 9 WORD Current program No.

Displays the current program

No.

0 to 31

10 to 11 WORD

Program No. during

judgment

Displays the program No. of the

latest judgment process.

0 to 31

12 to 13 WORD Result No.

Displays the judgment process

counts.

0 to 32767

14 to 15 WORD Processing time

Displays the processing time of

the latest judgment process.

0 to 10000

* WORD : Unsigned 16-bit integer

DWORD : Unsigned 32-bit integer

The unit of processing time is msec.

If two or more errors are occurring at the same time, the error code of the highest priority error will be

displayed.

“Error code list” (Page 5-29)

The rst occurred warning code will be displayed.

“Warning code list” (Page 5-30)

A checksum can be used to monitor whether the sensor settings have been modied by a third party.

The checksum will remain unchanged even if you switch programs.

The checksum will remain unchanged even if you change the IP address, subnet mask, default gateway

or port number of the IV series.

For the number of remaining buffers, refer to “Reading out the overall status result of the IV series

(Handshake control [Enabled])” (Page 5-34).

The upper limit value of the result No. is 32767. If the maximum value is exceeded, it will go back to 0

and start counting up again.

The result No. will also count the judgment process counts that were skipped due to the real-time

communication cycle setting.

Data I/O communication

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Keyence IV Series User Manual Page 84

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