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

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Observe the following notices to ensure personal safety or to prevent accidents.
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Make sure that you fully understand the product and information on safe.
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WARNING
If critical situations that could lead to user’s death or serious injury is assumed by mishandling of the
product.
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system remains safe in the event of failure of this product or other external factor.
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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.
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-Use the external devices to function the emergency stop and interlock circuit.
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The loose connection might cause abnormal exothermic heat or smoke generation
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inside of the product. It might cause exothermic heat or smoke generation.
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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.”