Panasonic FP3 User manual
Technical
Manual
FP3/FP10S THERMOCOUPLE INPUT UNIT Technical Manual
ACG-M0072-1 '96.3
FP3/FP10S
THERMOCOUPLE INPUT UNIT
PROGRAMMABLE CONTROLLER
Safety Precautions
Observe the following notices to ensure personal safety or to prevent accidents.
To ensure that you use this product correctly, read this User’s Manual thoroughly before use.
Make sure that you fully understand the product and information on safe.
This manual uses two safety flags to indicate different levels of danger.
WARNING
If critical situations that could lead to user’s death or serious injury is assumed by mishandling of the
product.
-Always take precautions to ensure the overall safety of your system, so that the whole
system remains safe in the event of failure of this product or other external factor.
-Do not use this product in areas with inflammable gas. It could lead to an explosion.
-Exposing this product to excessive heat or open flames could cause damage to the lithium
battery or other electronic parts.
CAUTION
If critical situations that could lead to user’s injury or only property damage is assumed by mishandling
of the product.
-To prevent abnormal exothermic heat or smoke generation, use this product at the values less
than the maximum of the characteristics and performance that are assure in these specifications.
-Do not dismantle or remodel the product. It could lead to abnormal exothermic heat or
smoke generation.
-Do not touch the terminal while turning on electricity. It could lead to an electric shock..
-Use the external devices to function the emergency stop and interlock circuit.
-Connect the wires or connectors securely.
The loose connection might cause abnormal exothermic heat or smoke generation
-Do not allow foreign matters such as liquid, flammable materials, metals to go into the
inside of the product. It might cause exothermic heat or smoke generation.
-Do not undertake construction (such as connection and disconnection) while the power
supply is on.
Copyright / Trademarks
-This manual and its contents are copylighted.
-You may not copy this manual,in whole or part,without written consent of Matsushita Electric
Works,Ltd.
-Windows and Windows NT are registered trademarks of Microsoft Corporation in the
United States and/or other countries.
-All other company names and product names are trademarks or registered
trademarks of their respective owners.
-Matsushita Electric Works,Ltd. pursues a policy of continuous improvement of the
Design and performance of its products, therefore,we reserve the right to change the manual/
product without notice.
Preface
1. Thermocouple Input Unit: AFP3420
This manual explains the thermocouple input unit with 4-channel input possibility. The unit can convert the data
from a K or J type thermocouple sensor into digital values for processing them in an FP3 or FP10S in the following
specifications:
- K type: 0 °C to 200 °C/32 °F to 392 °F,
0°C to 400 °C/32 °F to 752 °F,
0°C to 600 °C/32 °F to 1112 °For
0°C to 1000 °C/32 °F to 1832 °F range
- J type: 0 °C to 200 °C/32 °F to 392 °F,
0°C to 400 °C/32 °F to 752 °For
0°C to 600 °C/32 °F to 1112 °F range
Note:
SBe sure to use a J or K type thermocouple sensor which conforms to DIN standards.
2. Composition of the Manual
The THERMOCOUPLE INPUT UNIT Technical Manual is composed of the following chapters:
- 1. FEATURES:
The features and basics about the units are explained.
- 2. SPECIFICATIONS:
The specifications for the thermocouple input unit are given.
- 3. INSTALLATION AND SETTINGS:
The unit installation, settings and wiring descriptions are given.
- 4. PROGRAMMING FOR THERMOCOUPLE INPUT UNITS:
Key knowledge about programming for the thermocouple input unit is given.
- 5. TROUBLESHOOTING:
Steps to take when an error occurs are given.
- 6. APPENDIX:
Major data and explanations for using the thermocouple input unit are given for your reference.
CONTENTS
CONTENTS
CHAPTER 1: FEATURES
1-1. Features and Functions 2.............................................
1-2. Limitations on Configurations 3........................................
1. Limitations on Unit Installation Position 3.............................
2. Limitations on Unit Current Consumption 3............................
1-3. I/O Allocation and Slot Position 4......................................
1. I/O Allocation 4..................................................
2. Slot Position 4...................................................
CHAPTER 2: SPECIFICATIONS
2-1. Parts Terminology and Functions 8.....................................
2-2. Specifications 10...................................................
1. General Specifications 10..........................................
2. Performance Specifications 10......................................
3. Data Conversion Characteristics 11...................................
2-3. Shared Memory Specifications 13......................................
2-4. Dimensions 15.....................................................
CHAPTER 3: INSTALLATION AND SETTINGS
3-1. Installing a Thermocouple Input Unit 18.................................
1. Basic Configurations 18............................................
2. How to Install a Thermocouple Input Unit 19...........................
3. Installation Environment 20.........................................
3-2. Settings 22........................................................
1. Temperature Range Settings 22......................................
2. Channel Enable Settings 23.........................................
3-3. Wiring 24.........................................................
CHAPTER 4: PROGRAMMING FOR THERMOCOUPLE
INPUT UNIT
4-1. The Basics of Programming 28........................................
4-2. Reading Normalized Data 32..........................................
4-3. Reading Celsius Data 33.............................................
4-4. Reading Averaged Value 34...........................................
4-5. Setting Offset for Celsius Data 36......................................
4-6. Monitoring Unit’s Self-diagnostic Error Flag 37...........................
CHAPTER 5: TROUBLESHOOTING
5-1. Check Points for Troubleshooting 40....................................
5-2. Troubleshooting 41..................................................
5-3. Total-check Error Codes 47...........................................
5-4. Self-diagnostic Error Codes 48........................................
CONTENTS
CHAPTER 6: APPENDIX
6-1. Shared Memory Specifications 54......................................
6-2. Instructions for Accessing Shared Memory 56............................
6-3. Terminology 68....................................................
INDEX 79................................................................................
RECORD OF CHANGES 81.................................................................
CHAPTER 1 FEATURES
1-1. Features and Functions 2.............................
1-2. Limitations on Configurations 3........................
1. Limitations on Unit Installation Position 3.............
2. Limitations on Unit Current Consumption 3............
1-3. I/O Allocation and Slot Position 4......................
1. I/O Allocation 4..................................
2. Slot Position 4...................................
1-1. Features and Functions
2
1-1. Features and Functions
Thermocouple sensor
K type
J type
Thermocouple input unit
(AFP3420)
Analog input
(4 channels per unit)
•Thermocouple input unit for FP3/FP10S
This unit converts temperature data from a thermocouple sensor into digital values for processing by an FP3 or
FP10S CPU.
•Supports K and J type thermocouples
Temperature sensors which may be used are the K and J types.
•Automatic zero point correction
With the zero point correction sensor, the measured value of thermocouple sensor is automatically converted to
Celsius. Therefore, no complex calculation is required for handling data in an FP3 or FP10S.
•Four selections for temperature measurement range
The following selections are available for the measurement range:
-0°C to 200 °C/32 °F to 392 °F (with a K or J type)
-0°C to 400 °C/32 °F to 752 °F (with a K or J type)
-0°C to 600 °C/32 °F to 1,112 °F (with a K or J type)
-0°C to 1000 °C/32 °F to 1,832 °F (with a K type)
•Two data styles available
In addition to converting the temperature data in normalized 0 to 4000 form, the unit can also express the data in
digital Celsius data. (The Celsius data is expressed up to the 0.1 degree accuracy by multiplying 10 and the Celsius
value together.)
•Offset settings possible for Celsius data
An offset value can be set to correct the Celsius data when the data given differs from those of other measuring
instruments due to measurement error.
•Averaging function available for regular and Celsius data
The unit also has function for averaging normalized and Celsius data. This enables an FP3 or FP10S to handle
unstable data.
•Easy-to-use self-diagnostic functions
The unit can detect the disconnection or the broke of thermocouple sensor and temperature range abnormality.
•Shared memory based communication between an FP3/FP10S CPU and a thermocouple input unit
Data exchanges between the FP3/FP10S CPU and a thermocouple input unit can be performed using the shared
memory of the unit. By executing the F150 (READ)/P150 (PREAD) and F151 (WRT)/P151 (PWRT), CPU can
read various digital data, such as normalized, Celsius and their averaging data, its self-diagnostic condition etc. and
can write offset enable flags and offset values.
1-2. Limitations on Configurations
3
1-2. Limitations on Configurations
1. Limitations on Unit Installation Position
There are no limitations on the installation position when the thermocouple input unit is used on the basic system
(master backplane with a CPU), on the expansion system (expansion backplane) or on a MEWNET-F (remote I/O)
slave unit system.
Can be installed in any position. Can be installed in any position.
Basic system Expansion system
Can be used on a MEWNET-F (remote I/O) slave station.
MEWNET-F slave unit system
2. Limitations on Unit Current Consumption
There is limitation current consumption when configuring the FP3 and FP10S systems.
The 5 V power for unit operation is supplied from a power supply unit on the backplane and the total power
consumption of all installed units must be less than the power supply unit capacity.
The current consumption for thermocouple input unit is 500 mA at 5 V DC.
Be sure to verify that the capacity of the power supply unit of the backplane is sufficient for controlling units
installed.
Power Supply Unit Rated output current (5 V)
AFP3631
AFP3636
AFP3634
2.4 A
6A
2.4 A
The internal power supply (5 V) goes
to each unit via the backplane bus.
Note:
SFor details about the limitations on the current consumption, refer to “FP3/FP10S HARDWARE Technical
Manual.”
1-3. I/O Allocation and Slot Position
4
1-3. I/O Allocation and Slot Position
1. I/O Allocation
SI/O addresses for each unit can be allocated according to the type of units and its location in one of the following
two methods:
- Automatic I/O allocation
SI/O addresses are automatically allocated according to the type of units and its location each time power is supplied
to the system.
SWith this I/O allocation method, sixteen points (16SX) are occupied for each thermocouple input unit.
- Arbitrary I/O allocation
SI/O addresses can be freely allocated using the NPST-GR Software.
SEven with this I/O allocation method, sixteen points (16SX) must be allocated for each thermocouple input unit in
the same way as automatic I/O allocation.
0
to
F
10
to
1F
20
to
3F
40
to
7F
80
to
8F
90
to
9F
100
to
10F
110
to
14F
Thermocouple input unit
Note:
SFor details about the automatic and arbitrary I/O allocation methods, refer to the “FP3/FP10S HARDWARE
Technical Manual.”
2. Slot Position
SFor programming for the thermocouple input unit control, the unit position (slot number) is required as:
R9010 F150 READ, K3, K0, K4, DT100
Slot number Transfer
destination
Read word number
Starting address for the
shared memory read
R10 P151 WRT, K3, DT200, K4, K61
Slot number
Set data storage location
Number of data written
Starting shared memory address
Program examples
Note:
SIf a thermocouple input unit is installed on a MEWNET-F (remote I/O) slave station, the F152 (RMRD)/P152
(PRMRD) and F153 (RMWT)/P153 (PRMWT) instructions are used specifying the slot position of the
MEWNET-F slave station.
For details about the instructions, refer to page 56, “6-2. Instructions for Accessing Shared Memory.”
1-3. I/O Allocation and Slot Position
5
SSlot numbers are used for expressing the position of units except for the CPU and power supply unit. The slot
number is assigned for each unit for the FP3 and FP10S systems, starting from the unit in the slot nearest to the
CPU as shown in the following example.
19
On five slot backplanes, each of
the three open slots, which
actually do not exist, is counted
as one slot.
On three slot backplanes, each
of the five open slots, which
actually do not exist, is counted
as one slot.
8 9 10 11 12 13 14 15
20 21 22 23Slot number 16 17 18
Slot number
01234567
Slot number
6
CHAPTER 2 SPECIFICATIONS
2-1. Parts Terminology and Functions 8.....................
2-2. Specifications 10....................................
1. General Specifications 10..........................
2. Performance Specifications 10......................
3. Data Conversion Characteristics 11..................
2-3. Shared Memory Specifications 13......................
2-4. Dimensions 14.....................................
2-1. Parts Terminology and Functions
8
2-1. Parts Terminology and Functions
Front of unit Rear of unit
2Input terminal 5Dip switches
6Unit mounting screw
1Operation monitor LED
3Terminal fixing screw
4Zero point
correction
sensor
SW1
SW2
SW3
SW4
SW5
SW6
O
NO
F
F
1Operation monitor LED
- This LED lights green during normal operation.
- This LED lights red when an error occurs.
2Input terminal
Input wiring section connected to input field devices. This terminal block can be removed by loosening the terminal
fixing screws. Terminals marked with “•” cannot be used.
3Terminal fixing screw
The terminal block can be removed after loosening these screw.
4Zero point correction sensor
A Pt100 sensor (AFP84201) is attached to the unit in order to measure the ambient temperature. With it,
thermocouple sensor measured values are adjusted for getting correct normalized or Celsius data.
If a Pt. 100 sensor with different characteristics is used, correct temperature cannot be obtained. Therefore, if you
need to replace zero point correction sensors in some reasons, optionally available Pt. 100 sensor (AFP84201) should
be used.
2-1. Parts Terminology and Functions
9
5Dip switches
These dip switches specify the effective temperature range, thermocouple sensor type and effective number of
channels as follows:
- Effective temperature range (SW1, SW2 and SW3) and sensor type (SW4) settings
The effective temperature range settings vary depending on which of the two sensors will be used as:
Using K type sensor (Be sure to set the SW4 to OFF.)
Temperature
range setting for
K type sensor
0°C to 200 °C/
32 °F to 392 °F
ON OFF
0°C to 400 °C/
32 °F to 752 °F
ON OFF
0°C to 600 °C/
32 °F to 1112 °F
ON OFF
0°C to 1000 °C/
32 °F to 1832 °F
ON OFF
SW1
SW2
SW3
SW4
Using J type sensor (Be sure to set the SW4 to ON.)
Temperature
range setting for
J type sensor
0°C to 200 °C/
32 °F to 392 °F
ON OFF
0°C to 400 °C/
32 °F to 752 °F
ON OFF
0°C to 600 °C/
32 °F to 1112 °F
ON OFF
SW1
SW2
SW3
SW4
- Channel enable (SW5 and SW6) settings
Enabled channels 1 channel enabled
(CH0)
ON OFF
2 channel enabled
(CH0 and CH1)
ON OFF
3 channel enabled
(CH0 through CH2)
ON OFF
4 channel enabled
(CH0 through CH3)
ON OFF
SW5
SW6
Notes:
SThe SW5 and SW6 are set to OFF position at factory before shipping. In this setting, all 4 channels are
enabled.
SThe time required for the sensor data conversion will vary depending on the number of enabled channels.
SFor details about the dip switches settings, refer to page 22, “3-2. Settings.”
6Unit mounting screw
This screw secures the unit to the backplane.
2-2. Specifications
10
2-2. Specifications
1. General Specifications
Item Descriptions
Ambient temperature
0°Cto55°C/32 °F to 131 °F
Ambient humidity
30 % to 85 % RH (non-condensing)
Storage temperature
-20°Cto70°C/-4 °F to 158 °F
Storage humidity
30 % to 85 % RH (non-condensing)
Vibration resistance
10 Hz to 55 Hz, 1 cycle/min: double amplitude of 0.75 mm/0.030 in.,
10 min on 3 axes
Shock resistance
98 m/s2or more, 4 times on 3 axes
Noise immunity
1,000 Vp-p with pulse width 50 ns or 1 μs (based on in-house
measurements)
Operating condition
Free from corrosive gases and excessive dust
2. Performance Specifications
Item Descriptions
Number of channels
4 channels per unit
Applicable temperature sensor
K type thermocouple sensor: 0 °C to 1,000 °C/32 °F to 1,832 °F
J type thermocouple sensor: 0 °C to 600 °C/32 °F to 1,112 °F
Resolution
1/4000
Overall accuracy
1 % of full-scale (0 °Cto55°C/32 °F to 131 °F)
0.5 % of full-scale (at 25 °C/77 °F)
Conversion speed
Max. 500 ms per channel (*1)
Digital conversion data
Normalized data: K0 to K4000
Celsius data: Temperature up to first decimal place (*2)
Applicable temperature range
0°C to 200 °C/32 °F to 392 °F (with a K or J type)
0°C to 400 °C/32 °F to 752 °F (with a K or J type)
0°C to 600 °C/32 °F to 1,112 °F (with a K or J type)
0°C to 1,000 °C/32 °F to 1,832 °F (with a K type)
Insulation
Optical coupler insulation between sensor input terminal and internal
circuit
PhotoMOS relay insulation between sensor input channels
Breakdown voltage
500 V AC for 1 min between DC terminal and ground
Insulation resistance
100 MΩor more, across sensor input terminal and ground
(measured with a 500 V DC megger testing)
Internal current consumption
(at 5 V DC)
500 mA
Connection method
Terminal block (M 3.5 screw)
Other functions
Averaging function for normalized and Celsius data, Offset adjustment
for Celsius data, Self-diagnostic function for sensor connection error and
temperature range error, Error indication LED, Internal circuit protection
2-2. Specifications
11
Notes:
S(*1): The time required for the sensor data conversion will vary depending on number of enabled
channels as follows:
CH0
conversion CH1
conversion CH2
conversion CH3
conversion
Conversion
time
500 ms
Conversion time
1,000 ms
Conversion time
1,500 ms
Conversion time
2,000 ms
S(*2): The Celsius data is expressed up to the 0.1 degree accuracy by multiplying 10 and the Celsius value
together.
Example: Temperature measured : 100 °C, Celsius data in the shared memory: K1000
3. Data Conversion Characteristics
1) Temperature range settings: 0 °C to 200 °C/32 °F to 392 °F
JInput value range vs normalized data conversion characteristics
Measured temperature (°C) Normalized data
0
0
50
1000
100
2000
150
3000
200
4000
4000
3000
2000
1000
0400200 600 800 1000
Normalized data
Effective temperature range °C
0
2-2. Specifications
12
2) Temperature range settings: 0 °C to 400 °C/32 °F to 752 °F
JInput value range vs normalized data conversion characteristics
Measured temperature (°C) Normalized data
0
0
100
1000
200
2000
300
3000
400
4000
4000
3000
2000
1000
0400200 600 800 1000
Normalized data
Effective temperature range °C
0
3) Temperature range settings: 0 °C to 600 °C/32 °F to 1,112 °F
JInput value range vs normalized data conversion characteristics
Measured temperature (°C) Normalized data
0
0
150
1000
300
2000
450
3000
600
4000
4000
3000
2000
1000
0400200 600 800 1000
Normalized data
Effective temperature range °C
0
4) Temperature range settings: 0 °C to 1,000 °C/32 °F to 1,832 °F
JInput value range vs normalized data conversion characteristics
Measured temperature (°C) Normalized data
0
0
250
1000
500
2000
750
3000
1000
4000
4000
3000
2000
1000
0400200 600 800 1000
Normalized data
Effective temperature range °C
0
2-3. Shared Memory Specifications
13
2-3. Shared Memory Specifications
The shared memory is used for communication between the FP3/FP10S CPU and thermocouple input unit. For
accessing the thermocouple input unit, the CPU should execute F150 (READ)/P150 (PREAD) and F151
(WRT)/P151 (PWRT) instructions specifying the slot number of the unit and shared memory address.
The shared memory of the thermocouple input unit is configured as follows:
Shared memory
address (word units) Descriptions
K0
Normalized data
(
CH0
Temperature measured using the thermocouple and zero
K1
(Data range: K0
to
K4000)
CH1
p
g
p
point correction sensors are converted to K0 to K4000
digital
data
and
stored
here
When
a
sensor
connection
K2
t
o
K4000)
CH2
di
g
it
a
l
d
a
t
aan
d
s
t
ore
d
h
ere.
Wh
en a sensor connec
ti
on
error occurs
,
K8000 is set here.
K3
CH3
error
occurs
,
K8000
is
set
here
.
K4 to K7
Areas not used.
K8
Self-diagnostic
f
CH0
If a sensor connection error occurs or the temperature
K9
g
error flag area
CH1
p
becomes outside the preset temperature range, K1 is set
here
K10
CH2
h
ere.
K11
CH3
K12 to K15
Areas not used.
K16
Unit’s dip switch
settings
Bit position ···
Dip switch numbers 654321
43 0
Data 000001
The dip switch settings of the unit can be monitored with
the lower 6 bits of this word as follows:
Example: K type 0 °C to 200 °C (CH0 through CH3
enabled)
K17 to K23
Areas not used.
K24
Celsius data
(
CH0
Temperature measured using the thermocouple and zero
C
K25
(Expressed in
01
°
C
units
by
CH1
p
g
p
point correction sensors are stored in units of 0.1 °Casa
number
ten
times
the
Celsius
value
(eg:
If
the
measured
K26
0
.
1
°
C
un
it
s
b
y
10 times the
CH2
num
b
er
t
en
ti
mes
th
e
C
e
l
s
i
us va
l
ue.
(
e.g.:
If
th
e measure
d
tem
p
erature is 543.2 °C
,
K5432 will be stored.
)
K27
10
times
the
temperature)
CH3
temperature
is
543
.
2
C
,
K5432
will
be
stored
.
)
K28
Averaged value
f
C
CH0
Celsius data is averaged over five times and stored.
K29
g
of Celsius data
(A
veraged
over
CH1
g
K30
(A
verage
d
over
5 times
)
CH2
K31
5
times)
CH3
K32 to K39
Areas not used.
K40
Averaged value
f
li d
CH0
Normalized data is averaged over five times and stored.
K41
g
of normalized
data
(A
veraged
CH1
g
K42
d
a
t
a
(A
verage
d
over 5 times
)
CH2
K43
over
5
times)
CH3
K44 to K59
Areas not used.
K60
Celsius data offset
enable flag
Setting 1 here will enable the unit to adjust Celsius data
according to the offset value set to addresses K61 to K64.
2-3. Shared Memory Specifications
14
Descriptions
Shared memory
address (word units)
K61
Offset value for
C
CH0
The values in the Celsius data and its averaged value
f
f
K62
Celsius data
CH1
g
areas of the shared memory will be shifted according to
of
fset
value
set
here
if
1
is
set
to
address
K60
(eg:
T
o
K63
CH2
o
f
f
se
t
va
l
ue se
t
h
ere
if
1
i
sse
t
t
oa
dd
ress
K60
.
(
e.g.:
T
o
ad
j
ust the Celsius data b
y
1°C
,
set K10 and b
y
-1°C
,
set
K64
CH3
adjust
the
Celsius
data
by
1
C
,
set
K10
and
by
1
C
,
set
K-10.)
Note:
SWhen the power is turned ON, all addresses in the shared memory are cleared to 0. Therefore, when you
need to backup the shared memory data, be sure to take an appropriate measure using your program
such as transferring its contents to the hold-type CPU’s registers.
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