4 diagnostic flag commands, Diagnostic flag commands – Rice Lake iQUBE2 Digital Diagnostic Junction Box User Manual

Page 56

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52

iQUBE

2

Installation Manual

specified range. In this example, the 5% range allowed represents 6000 lb (120000 x 0.05), but cells 1 and 2 exceed
that range (17760.0 – 4500.0 = 13260.0).

Parameter Setting Commands Example:

SC1.DIA.UNBAL=ON

Enables the unbalanced load diagnostic test for Scale 1.

SC1.DIA.UNBAL.RANGE=10

Sets the allowed difference in weight between load cells to 10% of scale capacity. The default value is 5 (5%);
allowed values are 5–75.

SC1.DIA.UNBAL.THRESH=15

Sets the threshold for running the unbalanced diagnostic test to 15% of scale capacity. (That is, the test for an
unbalanced load is not made until the scale reaches 15% of capacity.) The default value is 10 (10%); allowed val-
ues are 0–50.

6.2.4 Diagnostic Flag Commands

When data is streamed from the iQUBE

2

, the <D> diagnostic code field shows only the highest priority error. The

DIA.FLAGS command can be used to show all errors present in the system.

The DIA.FLAGS command returns either an

OK

(no error) response or a scale name followed by a hexadecimal

value. The hexadecimal value shows the bits set on for all errors present on that scale.

Table 6-4 lists the mask bits set for each diagnostic error condition. Table 6-5 shows the bits and their associated
error conditions as they appear in the hexadecimal value returned by the DIA.FLAGS commands.

For example, if the DIA.FLAGS command returns the following:

DIA.FLAGS=SC2 0x28; SC4 0x20;

Referring to Table 6-5 shows that an overload condition (V) exists on both Scale 2 and Scale 4 (0x20), with a cell
connection error (C) also on Scale 2 (0x08).

Because the diagnostic code (<D>) returned from the iQUBE

2

shows only the highest priority error, only the cell

connection error (C) would appear in the data.

The DIA.CLEAR command clears all diagnostic flags. The completed command responds with an

OK

.

Mask Bit

<D>

Error Type

‘ ‘

OK

0x001

P

Power supply error

0x002

S

Secondary connection error

0x004

E

Excitation error

0x008

C

Cell connection error

0x010

R

Zero reference

0x020

V

Cell overload

0x040

D

Cell drift

0x080

U

Cell underload

0x100

N

Peak-to-peak noise

0x200

L

Unbalanced load

Table 6-4. Mask Bits and Codes for Diagnostic Errors

0x100–0x800

0x010–0x080

0x001–0x008

8

4

2

1

8

4

2

1

8

4

2

1

L

N

U

D

V

R

C

E

S

P

Table 6-5. Diagnostic Flag Mask Bits

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