Index ..............................................................................................................25
Record of Changes.......................................................................................27
vi
Page 8
Precautions Before Use
FP0 RTD Unitnit
Precautions Before Use
Accuracy
When extremely sensitive temperature data is required, use the temperature data obtained 15
minutes after turning ON the FP0 RTD unit. (The temperature data obtained in the first 15
minutes is, however, within the total accuracy range.)
A rapid temperature change in the FP0 RTD unit might change the temperature data
temporarily.
A draft (air) created e.g. by a cooling fan built into the control panel and blowing on the FP0
RTD unit will lower accuracy. Avoid any kind of draft.
Programming
Between power ON and the first valid conversion data, the digital value will be 8191 or 16383.
When programming, be sure not to use the data obtained during this period.
When the RTD is broken, the digital value will change to 8191 or 16383. When programming
avoid any risks resulting from a broken RTD. A broken RTD needs to be replaced.
vii
Page 9
Page 10
FP0 RTD Unit
Unit Outline
1 Unit Outline
1.1 Functions
RTD input unit for the FP0/FPΣ control unit.
The temperature data obtained using the RTD (Resistance Temperature Detector) is
converted to the digital value to be read into the FP0/ FPΣ control unit.
The unit can be installed to the DIN rail by one-touch operation. The one-touch hook is also
used for installing the unit to the FP0 Slim Type Mounting Plate (AFP0803).
5. Expansion hook
Used to secure expansion units.
3
Page 13
Input Range Setting Switch
2 Input Range Setting Switch
Input range setting switch
ON
OFF
1
MODE
2
3
4
5
FP0 RTD Unit
NOTE
The following switch settings are read once when the control unit is turned ON.
Changes will not be reflected if they are performed while the control unit is
turned ON.
Input range setting switch
OFF ON OFF ON OFF ON OFF ON
MODE SW 1
2
CH0, CH1, CH2 Pt100 Pt1000 Ni1000 Resistor
OFF ON OFF ON OFF ON OFF ON
MODE SW 3
4
CH3, CH4, CH5 Pt100 Pt1000 Ni1000 Resistor
OFF ON OFF ON
MODE SW 5
Sampling cycle 0.1s 1s
4
Page 14
FP0 RTD Unit
3 Wiring
Wiring method
Wiring
Input line wiring
NOTE
Keep a distance of more than 100mm between the input line and the power
line/high-voltage line.
RTD
5
Page 15
Conversion Characteristics
Converted
value
Converted
value
4 Conversion Characteristics
FP0 RTD Unit
NOTE
The measurement range available for degrees Celsius is larger than for degrees
Fahrenheit as the digital value (temperature value displayed) for °F is higher
than the one for °C.
4.1 Pt100
Input range:-200.0°C to 500.0°C/-328.0°F to 800.0°F, resolution: 0.1K/0.1°F
Input value
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-200.0 -2000 -328.0 -3280
+500.0 +5000 +800.0 +8000
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-200.1 or less -328.1 or less
+500.1 or more +800.1 or more
RTD broken
6
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
Page 16
FP0 RTD Unit
Converted
value
Conversion Characteristics
Input range:-80.00°C to 80.00°C/-80.00°F to 80.00°F, resolution: 0.01K/0.01°F
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-80.00 -8000 -80.00 -8000
+80.00 +8000 +80.00 +8000
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-80.01 or less -80.01 or less
+80.01 or more +80.01 or more
RTD broken
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
7
Page 17
Conversion Characteristics
Converted
value
Converted
value
FP0 RTD Unit
4.2 Pt1000
Input range: -200.0°C to 300.0°C/-328.0°F to 572.0°F, resolution: 0.1K/0.1°F
Input value
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-200.0 -2000 -328.0 -3280
+300.0 +3000 +572.0 +5720
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-200.1 or less -328.1 or less
+300.1 or more +572.1 or more
RTD broken
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
8
Page 18
FP0 RTD Unit
Converted
value
Conversion Characteristics
Input range: -80.00°C to 80.00°C/-80.00°F to 80.00°F, resolution: 0.01K/0.01°F
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-80.00 -8000 -80.00 -8000
+80.00 +8000 +80.00 +8000
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-80.01 or less -80.01 or less
+80.01 or more +80.01 or more
RTD broken
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
9
Page 19
Conversion Characteristics
Converted
value
Converted
value
FP0 RTD Unit
4.3 Ni1000
Input range: -30.0°C to 150.0°C/-22.0°F to 302.0°F), resolution: 0.1K/0.1°F
Input value
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-30.0 -300 -22.0 -220
+150.0 +1500 +302.0 +3020
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-30.1 or less -22.1 or less
+150.1 or more +302.1 or more
RTD broken
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
10
Page 20
FP0 RTD Unit
Converted
value
Converted
value
Conversion Characteristics
Input range: -30.00°C to 80.00°C/-22.00°F to 80.00°F, resolution: 0.01K/0.01°F
Input value
Input value
Correspondence table for A/D conversion values
Analog input
value (°C)
-30.00 -3000 -22.00 -2200
+80.00 +8000 +80.00 +8000
Digital output
value
Analog input
value (°F)
Digital output
value
Processing if the input value range is exceeded
Analog input
value (°C)
-30.01 or less -22.01 or less
+80.01 or more +80.01 or more
RTD broken
Digital output
value
8191
RTD broken
Analog input
value (°F)
Digital output
value
8191
11
Page 21
Conversion Characteristics
Converted
value
4.4 Resistor
Input range: 20Ω to 2200Ω, resolution: 1Ω
FP0 RTD Unit
Input value
(Ω)
Correspondence table for A/D conversion values
Analog input
value (Ω)
+20 +20
+2200 +2200
Digital output
value
Processing if the input value range is exceeded
Analog input
value (Ω)
+19 or less
+2201 or more
Resistor broken
Digital output
value
16383
12
Page 22
FP0 RTD Unit
Converted
value
Input range: 20.0Ω to 163.0Ω, resolution: 0.1Ω
(Ω)
Input value
Correspondence table for A/D conversion values
Analog input
value (Ω)
+20.0 +200
+1630.0 +16300
Digital output
value
Conversion Characteristics
Processing if the input value range is exceeded
Analog input
value (Ω)
+19.9 or less
+1630.1 or more
Resistor broken
Digital output
value
16383
13
Page 23
I/O Allocation and Sample Programs
FP0 RTD Unit
5 I/O Allocation and Sample Programs
5.1 I/O Numbers
Up to three expansion units including the FP0 RTD unit can be connected to the CPU (2
words [2x16 bits] are assigned to each WX and WY).
I/O Numbers
FP0/FPΣ CPU
Expansion unit
1 2 3
WY3, WY5, and WY7 are allocated but not used.
NOTES
• Always install the FP0 RTD unit the farthest to the right of the control unit.
• With 3 expansion units, one of which being the FP0 RTD unit, mount the
FP0 RTD unit in the place of expansion unit no. 3.
•With 3 expansion units, two of which being FP0 RTD units, mount the FP0
RTD units in the places of expansion units no. 2 and no. 3.
With the setup illustrated above, the I/O data is allocated as in the table below.
Expansion Unit No.1 Expansion Unit No.2 Expansion Unit No.3
RTD input
channel
RTD output
CH0, 2, 4
CH1, 3, 5
WX2 WX4 WX6
WX3 WX5 WX7
WY2 WY4 WY6
14
Page 24
FP0 RTD Unit
EXAMPLE
The converted digital data is assigned to WX2 and WX3 when the FP0 RTD unit
is installed as expansion unit no. 1.
I/O Allocation and Sample Programs
Converted data for CH1, 3, and 5
(signed 14-bit data)
Conversion data switch flag
Converted data for CH0, 2, and 4
(signed 16-bit data)
A1 A0 WX3 WX2
0 0 CH1 data CH0 data
0 1 CH3 data CH2 data
1 0 CH5 data CH4 data
Unused
For assignment, see table below
Assignment of outputs Y20…Y27
.
Off On
Y20
Y21
Y22
Y23
Y24
Y25
Y26
Y27
Y28…Y2F
°C °F
CH0: 0.1°C/°F CH0: 0.01°C/°F
CH1: 0.1°C/°F CH1: 0.01°C/°F
CH2: 0.1°C/°F CH2: 0.01°C/°F
CH3: 0.1°C/°F CH3: 0.01°C/°F
CH4: 0.1°C/°F CH4: 0.01°C/°F
CH5: 0.1°C/°F CH5: 0.01°C/°F
Always off Always off
Unused
15
Page 25
I/O Allocation and Sample Programs
FP0 RTD Unit
5.2 Programming with FPWIN Pro
Control FPWIN Pro provides the convenient function block “Read_RTD6” to read data from
the input channels. It can be used by the FP0 RTD unit for all RTD types (Pt100, Pt1000,
Ni1000, and Resistor).
You may download it free of charge from Matsushita Electric Work (Europe) AG’s website at:
www.mew-europe.com.
Figure 1: Function block Read_RTD6
NOTES
Select a data range with or without sign for Switch1 and Switch2:
This program shows you how to store temperature data for CH0 to CH5 of the FP0 RTD unit
installed as expansion unit no.1 in data registers DT0 to DT5.
EXAMPLE
REFERENCE
For further information, see page 14, I/O Allocation and Sample Programs.
Conversion data switch flag
When transferring the data from the FP0 RTD unit to the control unit, it is converted to 32-bit
data including the channel information. Data for WX2 can be used as is, but the following
procedure is required for WX3 data since its higher 2 bits are used as a conversion data
switch flag.
PROCEDURE
1. When temperature data is negative, the data is automatically represented as
two's complement of WX2 and WX3: bit F of WX2 and bit D of WX3 will be
“1”.
2. The higher 2 bits of WX3 are used as conversion data switch flag. After
saving the channel information, the conversion data switch flag needs to be
masked. Mask the data with "00” when the conversion data is positive and
with “11” when it is negative.
17
Page 27
I/O Allocation and Sample Programs
FP0 RTD Unit
Data for CH3 WX3
1 0100000000000001 → 0000000000000001
-1 0111111111111111 → 1111111111111111
Bit D: recognizes
positive or negative
Conversion data switch flag
→
Data after masking
NOTE
X3D, X3E, X3F, WX2 and WX3 may be different, depending on where the FP0
RTD unit is installed.
5.3.2 RTD Type Resistor
Ladder program to read data from input channels
This program shows you how to store temperature data for CH0 to CH5 of the FP0 RTD unit
installed as expansion unit no.1 in data registers DT0 to DT5.
EXAMPLE
18
REFERENCE
For further information, see page 14, I/O Allocation and Sample Programs.
Page 28
FP0 RTD Unit
I/O Allocation and Sample Programs
Conversion data switch flag
When transferring the data from the FP0 RTD unit to the control unit, it is converted to 32-bit
data including the channel information. Data for WX2 can be used as is, but the following
procedure is required for WX3 data since its higher 2 bits are used as a conversion data
switch flag.
PROCEDURE
1. As resistor data is only positive, handle the complete data of bit 0 to bit F
for WX2 and bit 0 to bit D for WX3 as the resistance value.
2. The higher 2 bits for WX3 are used as conversion data switch flag. After
saving the channel information, the conversion data switch flag needs to be
masked. Mask the data using “00” as the conversion data is positive.
Data for CH3 WX3
1 0100000000000001 → 0000000000000001
Conversion data switch flag
→
Data after masking
NOTE
X3E, X3F, WX2 and WX3 may be different, depending on where the FP0 RTD
unit is installed.
19
Page 29
When an Error Occurs
6 When an Error Occurs
6.1 Troubleshooting
FP0 RTD Unit
PROCEDURE
1. Check whether the input signal lines are connected properly.
When the RTD is not connected properly or broken, K8191 is displayed for RTD
types Pt100, Pt1000, and Ni1000. K16383 is displayed for the RTD type Resistor.
2. Check whether the input range setting switch is set properly.
It specifies the allowed temperature range and the RTD type.
3. Use the programs described above.
REFERENCE
For further information, see page 4, Input Range Setting Switch and page 14, I/O
Allocation and Sample Programs.
6.2 Digital Value When Out Of Measuring Range
When the input of the FP0 RTD unit is out of the measuring range, the following digital values
are displayed:
10Hz to 55Hz, 1 cycle/min: double amplitude of 75mm for 10 min. on 3 axes (toward
X, Y and Z directions)
98m/s2 for 4 times on 3 axes (toward X, Y and Z directions)
1000V [P-P] with pulse widths 50ns and 1µs (using noise simulator)
Free from corrosive gases and excessive dust.
Approx. 75g
Specifications
Input specifications
Parameter Specification
Input channels
Input range
Up to 6 channels per unit
Resolution 0.1
Pt100
Resolution 0.01
Resolution 0.1
Pt1000
Resolution 0.01
Resolution 0.1
Ni1000
Resolution 0.01
Resistor
Resolution 1
Resolution 0.1
-200.0°C to 500.0°C
-328.0°F to 800.0°F (see note 1)
-80.00°C to 80.00°C
-80.00°F to 80.00°F (see note 1)
-200.0°C to 300.0°C
-328.0°F to 572.0°F (see note 1)
-80.00°C to 80.00°C
-80.00°F to 80.00°F (see note 1)
-30.0°C to 150.0°C
-22.0°F to 302.0°F (see note 1)
-30.00°C to 80.00°C
-22.00°F to 80.00°F (see note 1)
20Ω to 2200Ω
20.0Ω to 1630.0Ω
21
Page 31
Specifications
FP0 RTD Unit
Parameter Specification
Digital output
Resolution
Sampling cycle
Accuracy
Insulation
Resolution 0.1
Pt100
Resolution 0.01
Resolution 0.1
Pt1000
Resolution 0.01
Resolution 0.1
Ni1000
Resolution 0.01
Resistor
When out of range or RTD is broken: 8191 or 16383 (see note 2)
Until temperature can be measured at initial startup: see note 3
0.1K/°F, 0.01K/°F
0.1 or 1s for all channels (see note 4)
Pt100
Pt1000
Ni1000
Resistor
none
Resolution 1
Resolution 0.1
Cycle 1s
Cycle 0.1s Whole temp. range 0.5%/3.5K
Cycle 1s
Cycle 0.1s Whole temp. range 0.5%/2.5K
Cycle 1s Whole temp. range 1K
Cycle 0.1s Whole temp. range 2K
Cycle 1s Whole temp. range
Cycle 0.1s Whole temp. range
-200.0 to 500.0°C:
-328.0 to 800.0°F:
-80.00 to 80.00°C:
-80.00 to 80.00°F:
-200.0 to 300.0°C:
-328.0 to 572.0°F:
-80.00 to 80.00°C:
-80.00 to 80.00°F:
-30.0 to 150.0°C:
-22.0 to 302.0°F:
-30.00 to 80.00°C:
-22.00 to 80.00°F:
20 to 2200Ω:
20.0Ω to 1630.0Ω:
Ambient temp.: 25°C 0.3K (-10°C to +30°C)
Whole temp. range 0.35%/2.5K
Ambient temp.: 25°C 0.3K (-10°C to +30°C)
Whole temp. range 0.35%/1.7K
-2000 to 5000
-3280 to 8000
-8000 to 8000
-8000 to 8000
-2000 to 3000
-3280 to 5720
-8000 to 8000
-8000 to 8000
-300 to 1500
-220 to 3020
-3000 to 8000
-2200 to 8000
20 to 2200
200 to 16300
0.2%/1.4K (-200°C to +500°C)
0.2%/1.0K (-200°C to +300°C)
1Ω (20 to 2200Ω)
2Ω (20 to 2200Ω)
method
Input/output
points
Input 32 points:
Output 8 + 24 points (reserved)
16 points for WX2, 4, 6 Analog input CH0, 2, 4 (WX2)
(see notes 5 and 6)
16 points for WX3, 5, 7 Analog input CH1, 3, 5 (WX3)
(see notes 5 and 6)
22
NOTES
1. The measurement range available for degrees Celsius is larger than
for degrees Fahrenheit as the digital value (temperature value
displayed) for °F is higher than the one for °C.
2. When the RTD is broken, the digital value will change to 8191 or
16383. Use a program to avoid risks resulting from a broken RTD. A
broken RTD needs to be replaced.
Page 32
FP0 RTD Unit
3. Until conversion data is ready after the initial startup, the digital
value shows 8191 or 16383. These are not temperature data. Program
in such a way that these values are not interpreted as temperature
data.
4. These are the settings of the input channel selection switch.
5. The control unit reads data from 2 channels in one scan. Read data
by using the programs described above.
6. This address applies when the FP0 RTD unit is installed as
expansion unit no. 1.