Beckhoff EL33-00 Series, Документация

Страница: 149 / 204

Commissioning
EL33xx-00x0 149 Version: 4.2
5.6 Settings
5.6.1 Presentation, index 0x80n0:02
In the delivery state, the measured value is output in increments of 1/10° C in two's complement format
(signed integer).
Index
0x80n0:02 [
}
157] offers the possibility to change the method of representation of the measured value.
Measured value Output (hexadecimal) Output (signed integer, decimal)
-200.0 °C 0nF830 -2000
-100.0 °C 0nFC18 -1000
-0.1 °C 0nFFFF -1
0.0 °C 0n0000 0
0.1 °C 0n0001 1
100.0 °C 0n03E8 1000
200.0 °C 0n07D0 2000
500.0 °C 0x1388 5000
850.0 °C 0x2134 8500
1000.0 °C 0x2170 10000
Table 2: Output of measured value and process data
• Signed Integer:
The measured value is presented in two’s complement format.
Maximum presentation range for 16 bit = -32768 .. +32767
◦ Example:
◦ 1000 0000 0000 0000
bin
= 0x8000
hex
= - 32768
dec
◦ 1111 1111 1111 1110
bin
= 0nFFFE
hex
= - 2
dec
◦ 1111 1111 1111 1111
bin
= 0nFFFF
hex
= - 1
dec
◦ 0000 0000 0000 0001
bin
= 0n0001
hex
= +1
dec
◦ 0000 0000 0000 0010
bin
= 0n0002
hex
= +2
dec
◦ 0111 1111 1111 1111
bin
= 0x7FFF
hex
= +32767
dec
• Absolute value with MSB as sign:
The measured value is output in magnitude-sign format.
Maximum presentation range for 16 bit = -32767 .. +32767
◦ Example:
◦ 1111 1111 1111 1111
bin
= 0nFFFF
hex
= - 32767
dec
◦ 1000 0000 0000 0010
bin
= 0x8002
hex
= - 2
dec
◦ 1000 0000 0000 0001
bin
= 0x8001
hex
= - 1
dec
◦ 0000 0000 0000 0001
bin
= 0n0001
hex
= +1
dec
◦ 0000 0000 0000 0010
bin
= 0n0002
hex
= +2
dec
◦ 0111 1111 1111 1111
bin
= 0x7FFF
hex
= +32767
dec
• High resolution (1/100 C°):
The measured value is output in 1/100 °C steps.
5.6.2 Siemens bits, index 0x80n0:05
If the bit in index 0x80n0:05 [ } 157] is set, status displays are shown for the lowest 3 bits. In the error case
"overrange" or "underrange", bit 0 is set.