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Process Image
WAGO-I/O-SYSTEM 750
750-451 8 AI RTD
Manual
Version 1.1.0
4.3.13.2 S5-FB250 Format
With the setting “Resistance measurement 1” (0 Ohm to 5.0 kOhm) and activated
S5-FB250 format, the I/O module outputs the measured resistance values of the
sensors directly.
The resistance values are displayed at a resolution of 1 digit per 4 Ohm. The status
information is depicted in bit 0 to bit 2 and the digitalized measured value in bit 3
to bit 15.
Table 43: ID 14, Setting “Resistance measurement 1”, S5-FB250 Format
Resistance
Ω
Numeric value with status information
3)
Status
byte
hex.
Error
LED
Binary
XFÜ
Hex.
Dec.
0
'0000.0000.0000.0 000'
0x0000
0
0x00
OFF
100
'0000.0000.1100.1 000'
0x00C8
200
0x00
OFF
200
'0000.0001.1001.0 000'
0x0190
400
0x00
OFF
300
'0000.0010.0101.1 000'
0x0258
600
0x00
OFF
1000
'0000.0111.1101.0 000'
0x07D0
2000
0x00
OFF
2000
'0000.1111.1010.0 000'
0x0FA0
4000
0x00
OFF
3000
'0001.0111.0111.0 000'
0x1770
6000
0x00
OFF
4000
'0001.1111.0100.0 000'
0x1F40
8000
0x00
OFF
5000
'0010.0111.0001.0 000'
0x2710
10000
0x00
OFF
> 5000
'0010.0111.0001.0 001'
0x2711
10001
0x42
ON
Overrange
2)
> 5010
'0010.0111.0001.0 010'
0x2712
10002
0x60
ON
Wire break
1)
1) When short circuit and wire break monitoring is ON (see section “Diagnostics” > „Behavior in
the Event of an Error“)
2) When underrange / overrange limit is ON (see section “Diagnostics” > „Behavior in the Event
of an Error“)
3) Status information:
X: Not used,
F: Short circuit, wire break,
Ü: Underrange, overrange
4.3.14 Resistance Measurement 2, 0 Ohm … 1.2 kOhm, ID 15
No short-circuit detection for resistance measurements!
For sensor types “Resistance measurement 1” and “Resistance measurement 2”,
short-circuit detection is not technically possible.
4.3.14.1 Default Format
With the setting “Resistance measurement 2” (0 Ohm to 1.2 kOhm), the I/O
module outputs the measured resistance values of the sensors directly.
The resistance values are displayed at a resolution of 1 digit per 0.05
Ω
in one
word (16-bit). The maximum number range viewable in one word in two's