Fairbanks X SERIES PR 5410 Process Indicator User Manual
Page 134
Section 7: Fieldbus Interface
10/08 134
51207 Revision 1
7.2.4 Example: Reading the Gross Weight
The master writes value 8 in
Read_Value_Select
(byte 4)
of the input area.
Input area
Byte
Value
Description
0
1
2
3
4
8
Gross
5
6
7
The master waits, until value 8 was reflected in
Read_Value_Selected (byte 4)
of the output area.
Output area
Byte
Value
Description
0
00
Gross value
1
00
"
2
4
"
3
D2
"
4
8
Gross weight
request was
detected
5
Status
6
Test
active
Command status
7
Stand-
still
Inside
ZSR
Center
zero
Below
zero
Over-
load
Above
Max
ADC
error
Device status
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 3
Bit 1
Bit 0
The gross value (hex:000004D2 <=> 1234) can be read from bytes 0...3. When the
'Overload'
,
'Test
Active'
or
'ADC error'
bits are set, the read value is invalid.
Negative values are output in two’s complement.