Siemens SIMATIC User Manual

Principles of analog modules
5.1 Representation of the values for analog input channels
S7-300 Module data
276 Manual, 06/2017, A5E00105505-AJ
Representation of the analog values of thermocouples type L
Table 5- 29 Representation of the analog values of thermocouples type L
Type L
in °C
Units
Type L in °F
Units
Type L in K
Units
Range
dec
hex
dec
hex
dec
hex
> 1150.0
32767
7FFF
H
> 2102.0
32767
7FFF
H
> 1423.2
32767
7FFF
H
Overflow
1150.0
:
900.1
11500
:
9001
2CEC
H
:
2329
H
2102.0
:
1652.2
21020
:
16522
521C
H
:
408A
H
1423.2
:
1173.3
14232
:
11733
3798
H
:
2DD5
H
Overshoot
range
900.0
:
-200.0
9000
:
-2000
2328
H
:
F830
H
1652.0
:
-328.0
16520
:
-3280
4088
H
:
F330
H
1173.2
:
73.2
11732
:
732
2DD4
H
:
02DC
H
Rated range
< -200.0
< -2000
< F830
H
< -328.0
< -3280
< F330
H
< 73.2
< 732
<02DC
H
Underflow
Faulty wiring (polarity reversal, or open inputs, for example), or sensor error in the negative range (wrong
type of thermocouple, for example) will cause the analog input module to signal underflow, starting at ...
... from F380
H
underflow and
outputs 8000
H
.
... from EAC0
H
underflow and
outputs 8000
H
.
... from FE2C
H
underflow and
outputs 8000
H
.
Representation of the analog values of thermocouples type N
Table 5- 30 Representation of the analog values of thermocouples type N
Type N
in °C
Units
Type N in
°F
Units
Type N in K
Units
Range
dec
hex
dec
hex
dec
hex
> 1550.0
32767
7FFF
H
> 2822.0
32767
7FFF
H
> 1823.2
32767
7FFF
H
Overflow
1550.0
:
1300.1
15500
:
13001
3C8C
H
:
32C9
H
2822.0
:
2372.2
28220
:
23722
6E3C
H
:
5CAA
H
1823.2
:
1573.3
18232
:
15733
4738
H
:
3D75
H
Overshoot
range
1300.0
:
-270.0
13000
:
-2700
32C8
H
:
F574
H
2372.0
:
-454.0
23720
:
-4540
5CA8
H
:
EE44
H
1573.2
:
0
15732
:
0
3D74
H
:
0000
H
Rated range
< -270.0
< -2700
< F574
H
< -454.0
< -4540
<EE44
H
< 0
< 0
< 0000
H
Underflow
Faulty wiring (polarity reversal, or open inputs, for example), or sensor error in the negative range (wrong
type of thermocouple, for example) will cause the analog input module to signal underflow, starting at ...
... from F0C4
H
underflow and
outputs 8000
H
.
... from E5D4
H
underflow and
outputs 8000
H
.
... from FB70
H
underflow and
outputs 8000
H
.

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)