![WAGO 750-450 Скачать руководство пользователя страница 57](http://html1.mh-extra.com/html/wago/750-450/750-450_manual_868434057.webp)
WAGO-I/O-SYSTEM 750
Process Image 57
750-450 4 AI RTD
Manual
Version 1.2.0
4.3.14 Potentiometer, ID 13
Potentiometer!
The "Potentiometer" sensor type and the corresponding measuring range may
only be used with 3-wire connecting technology.
4.3.14.1 Standard Format
At the "Potentiometer" setting the I/O module outputs the resistance ratio
between the slider resistance (conneRx/+RxL) and the overall resistance
(conneRx/−Rx) of the potentiometer connected to the system. The set
values are displayed at a resolution of 1 digit per 0.005 % in one word (16 bits).
The maximum numeric range in the two's complement representation that can be
displayed with one word ranges from −32768 to +32767. The numeric range that
is used depends on the set sensor type and on the resolution for the process
value. With the "Potentiometer" setting, the possible numeric range corresponds
to the defined measuring range of 0 % to 100 %, meaning it covers a range of 0
to +20000.
Table 50: ID 13, Potentiometer, Standard Format
Percentage
%
Numeric value
Status
byte
hex.
Error
LED
Binary
Hex.
Dec.
0.0
'0000.0000.0000.0000'
0x0000
0
0x50
ON
Short circuit
1)
0.0
'0000.0000.0000.0000'
0x0000
0
0x41
ON
Underrange
2)
0.0
'0000.0000.0000.0000'
0x0000
0
0x00
OFF
20.0
'0000.1111.1010.0000'
0x0FA0
4000
0x00
OFF
40.0
'0001.1111.0100.0000'
0x1F40
8000
0x00
OFF
60.0
'0010.1110.1110.0000'
0x2EE0
12000
0x00
OFF
80.0
'0011.1110.1000.0000'
0x3E80
16000
0x00
OFF
100.0
'0100.1110.0010.0000'
0x4E20
20000
0x00
OFF
> 100
'0100.1110.0010.0000'
0x4E20
20000
0x42
ON
Overrange
2)
> 100
'0100.1110.0010.0000'
0x4E20
20000
0x60
ON
Wire break
1)
1) When short circuit and wire break monitoring is on (see Section "Diagnostics" > "Error
Response")
2) When lower/upper limit violation detection is on (see Section "Diagnostics" > "Error Response")