Locating errors – Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD User Manual

Page 85

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Appendix

B

B-1

Locating Errors

In the status file, 2 words per loop provide error codes for their
corresponding loop. The first word for each loop indicates
configuration-block and gains-block errors for that loop.

Display of integer value in word 3,

6, 9, 12, 15, 18, 21, or 24 of the

status block

A nonĆzero value in

these two digits

indicate an error in the

gains block

A nonĆzero value in

these two digits

indicate an error in the

configuration block

Example: If a value 4713 is diplayed, the 47 in the upper

pair of digits would indicate an error in the gains block and

the 13 in the leastĆsignificant pair of digits would indicate an

error in the configuration block

If This Word of

Status Block:

Contains This

Value:

The Error is:

3 (loop 1)

6

(loop 2)

xx00

No error detected in configuration block.

6 (loop 2)

9 (loop 3)

12 (loop 4)

15 (loop 5)

18 (loop 6)

21 (loop 7)

24 (loop 8)

xx01

thru

xx23

A word in the configuration block has an outĆofĆrange

value or incompatible bit selection. Locate the specific

word by the value in the 2 leastĆsignificant decimal

digits of the status word. (value = word)

Example: If the value in word 6 is xx14, word 14

(cool maximum cycle time) of the loopĆ2

configuration block has an outĆofĆrange value,

00xx

No error detected in gains block.

1xx

thru

57xx

A word in the gains block has an outĆofĆrange value.

Locate the specific word by the value in the 3rd and 4th

leastĆsignificant decimal digits of the status word.

(value = word)

Example: If the value in word 9 is 14xx, word 14

(loopĆ2 cool derivative gain) of the gains block has

an outĆofĆrange value,

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