Download - PRO1 13e Analog
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Date: 02.05.2015File: PRO1_13E.1
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Value Processing
Level
transmitter
High level
Low level
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Date: 02.05.2015File: PRO1_13E.2
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Objectives
Upon completion of this chapter the participant will ...
... know the principle of analog value processing
... be able to assign parameters to an analog module using the "HW
Config" tool and will be able to set the measuring range module that
belongs to the module to the correct position
... be able to address an analog module
... be able to interpret the resolution of a module
... be able to evaluate the result of an analog module in the program
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Date: 02.05.2015File: PRO1_13E.3
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Using Analog Modules
Process
Physicalquantity Standardanalog signal
Sensor Transducer
Pressure
Temperature Flow Speed pH value Viscosity etc.
500mV
1V 5V 10V 20mA4 to 20mAetc.
DAC
PQW ...PQW ...:::PQW ...
Analog output module
MRmodule
ADC
Resultmemory
PIW ...PIW ...:::PIW ...
Analog input module CPU
::::::L PIW 352
T PQW 368:
Analogactuator
Physicalquantity
.........
..........................
...
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Date: 02.05.2015File: PRO1_13E.4
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Measuring Range Module
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Date: 02.05.2015File: PRO1_13E.5
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Module Parameters
DoubleClick
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Date: 02.05.2015File: PRO1_13E.6
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Input Modules
SM335 (Inputs) SM331
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Date: 02.05.2015File: PRO1_13E.7
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Output Module
SM335 (Outputs) SM332
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Date: 02.05.2015File: PRO1_13E.9
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Value Representation of Different Measuring Ranges
Range
Overflow
Overrange
Rated range
Underrange
Underflow
Meas.range 10V
Voltagesuch as:
>= 11.759
11.7589:
10.0004
10.007.50:
-7.5-10.00
- 10.0004:
- 11.759
= 22.815
22.810:
20.0005
20.00016.000
::
4.000
3.9995:
1.1852
= 1000.1
1000.0:
850.1
850.0:::
-200.0
- 200.1:
- 243.0
=352.778
352.767:
300.011
300.000225.000
::
0.000
Negativevaluesnot
possible
Units
32767
32511:
27649
2764820736
::
0
- 32768
- 1:
- 4864
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Date: 02.05.2015File: PRO1_13E.10
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Value Representation for the Analog Outputs
Range
Overflow
Overrange
Rated range
Underrange
Underflow
Units
>=32767
32511:
27649
27648:0
:- 6912
- 6913:::
- 27648
- 27649:
- 32512
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Date: 02.05.2015File: PRO1_13E.11
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Analog Module Addresses for the S7-300
IM256
to
270
336
to
350
352
to
366
368
to
382
304
to
318
320
to
334
272
to
286
288
to
302
(Send)
Slot 2 3 4 5 6 7 8 9 10 11
384
to
398
400
to
414
432
to
446
448
to
462
464
to
478
480
to
494
496
to
510
416
to
430
Rack 1
R0
Power
Supply
IM
(Receive)
Power
Supply CPU
512to
526
528to
542
544to
558
560to
574
576to
590
592to
606
608to
622
624to
638
Rack 2 IM(Receive)
PowerSupply
Rack 3 640
to
654
656
to
670
672
to
686
688
to
702
704
to
718
720
to
734
736
to
750
752
to
766
IM
(Receive)
Power
Supply
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Date: 02.05.2015File: PRO1_13E.12
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Scaling Analog Input Values
HI_LIM = 500.0
LO_LIM = 0.0
0 27648-27648
bipolar (M 0.0 = 1)(Sensor also supplies negative voltage)
B
27648
HI_LIM = 500.0
LO_LIM = 0.0
0
unipolar (M 0.0 = 0)(Sensor supplies only positive voltage)
A
OUT
IN IN
OUT
x x+1
x x+1
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Date: 02.05.2015File: PRO1_13E.13
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Unscaling Analog Output Values
27648
0
0.0(LO_LIM)
100.0(HI_LIM)
IN
OUT
0.0(LO_LIM)
100.0(HI_LIM)
IN
OUT
27648
-27648
A
B
unipolar (M 0.0 = 0)(Actuator is energized
only with positive values)
bipolar (M 0.0 = 1)(Actuator is energized withpositive and negative values)
0
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Date: 02.05.2015File: PRO1_13E.14
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Exercise: Assigning Parameters to the Analog Module SM335
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Date: 02.05.2015File: PRO1_13E.15
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Exercise: Assigning Parameters to the Analog Module SM331
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Date: 02.05.2015File: PRO1_13E.16
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
Exercise: Hardware Diagnostics with Diagnostic Interrupt
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Date: 02.05.2015File: PRO1_13E.17
SIMATICS7Siemens AG 2002. All rights reserved.
SITRAINTraining forAutomation and Drives
CPUExercise: Recording and Displaying the Weight of Transported Parts
AI2AI1
Weight 0 to 500kg
-15V...+15VAI1
AI2 AO1AO2
V
010
Simulator
0...10VPIW 352
(PIW 304)
AI module
0...27648
QW 12(QW 6)
DO module
0 to 500 kg
BCD Display
1 2 30
Weight Display
for I 0.6 = 1