WAGO 750 Series Manual page 22

22 • 750-461, (/xxx-xxx) [2 AI Pt100/ RTD]
Process Image
2.1.2.7.1.3 Pt 100 with Status Information for S5-FB250 in Data Word
The analog input module 750-461/000-200 transmits 16-bit measured values
per channel as well as 8 optional status bits to the coupler/controller.
When a S5 is used as higher-level control system, this data can be directly
processed using the FB 250 function block.
However, accessing the status byte depends on the fieldbus system being used.
The status information is mapped to bits 0 to 2 and the digitized measured
value to bits 3 to 14.
perature
1
2)
Values marked with "ca." are not calibrated.
Tem- Resis-
tance
°C Ω
10 '0000.0011.0011.0
-200.0 20 '0000.0110.0110.0
-185.0 25 '0000.1000.0000.0
-125.0 50 '0001.0000.0000.0
0.0 100 '0010.0000.0000.0
266.0 200 '0100.0000.0000.0
560.0 300 '0110.0000.0000.0
850.0 390 '0111.1100.1100.1
800 '1111.1111.1111.1
>800
>ca.1200 '0001.0000.0001.0
Status information: X: not used, F: short-circuit, broken wire, Ü: overrange
Temperature values below 0 °C are represented in two's complement binary form.
750-461/000-200
Numerical value
with status information
binary XFÜ hex.
1)
000' 0x0330
000' 0x0660
000' 0x0800
000' 0x1000
000' 0x2000
000' 0x4000
000' 0x6000
000' 0x7CC8 32949
000' 0xFFF8 65535
undefined
001' 0x1011
2)
Status-
1)
byte
dec. hex.
819 0x00
1638 0x00
2048 0x00
4096 0x00
8192 0x00
16384 0x00
24576 0x00
0x00
0x00
0x00
4113 0x42
WAGO-I/O-SYSTEM 750
I/O Modules
LED
Error
AI 1,2
off
off
off
off
off
off
off
off
off
off
on