Panasonic FP2 -C1A, FP2 -AD8, FP2 -DA4 User Manual

FP2 Analog Unit Manual

ARCT1F283E-4 04.10

FP2 Analog Unit

Manual

PROGRAMMABLE CONTROLLER

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Safety Precautions

Observe the following notices to ensure personal safety or to prevent acci dents.
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 exothermi c 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, metal s 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.

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-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.

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i

Table of Contents

Chapter 1 Functions and Restrictions

1.1 Features 1 - 3........................................................

1.2 Type of Unit 1 - 4.....................................................

1.3 Data Processing Functions 1 - 5........................................

1.4 Installation Restrictions 1 - 7...........................................

1.5 Current Consumption 1 - 8.............................................

1.6 Range Setting Restrictions 1 - 9........................................

Chapter 2 Parts and Specifications

2.1 CPU Unit with Analog I/O (FP2-C1A) 2 - 3...............................

2.2 Analog Input Unit (FP2-AD8) 2 - 5......................................

2.3 Analog Output Unit (FP2-DA4) 2 - 6....................................

Chapter 3 Wiring

3.1 Suitable Terminals and Wires 3 - 3......................................

3.2 Wiring for Analog Input 3 - 5............................................

3.3 Wiring for Analog Output 3 - 7..........................................

3.4 EMC Conformity 3 - 8.................................................

Chapter 4 Setting the I/O Range and I/O Allocation

4.1 Setting the Input and Output Range 4 - 3................................

4.2 I/O Allocation 4 - 5....................................................

Chapter 5 Initial Settings

5.1 Analog Input Initial Settings 5 - 3........................................

5.2 Analog Output Initial Settings 5 - 6......................................

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Table of Contents FP2 Analog Unit

ii

Chapter 6 Analog I/O Conversion Characteristics and

Conversion Cycle Time

6.1 Analog Input Conversion Characteristics 6 - 3............................

6.2 Analog Output Conversion Characteristics 6 - 11...........................

6.3 Analog Input and Output Conversion Cycle Time 6 - 13....................

Chapter 7 Procedure for Handling Analog Unit

7.1 Outline of Procedure for Handling Analog Unit 7 - 3.......................

7.2 Reading the Analog Input Data 7 - 4.....................................

7.3 Writing the Analog Output Data 7 - 5....................................

Chapter 8 Sample Program for Analog Input

8.1 Basic Program (CPU Unit with Analog I/O) 8 - 3..........................

8.2 Basic Program (Analog Input Unit) 8 - 5..................................

8.3 Scale Conversion Processing Program (CPU Unit with Analog I/O) 8 - 7.....

8.4 Temperature Sensor Input Broken Wire Detection 8 - 9....................

Chapter 9 Sample Program for Analog Output

9.1 Basic Program (Analog Output Unit) 9 - 3................................

Chapter 10 Sample Program for Analog Input Average

Processing Setting

10.1 Sample Program (CPU Unit with Analog I/O) 10 - 3........................

10.2 Sample Program (Analog Input Unit) 10 - 5...............................

Chapter 11 Sample Program of Analog Input Offset Setting

11.1 Sample Program (CPU Unit with Analog I/O) 11 - 3.........................

11.2 Sample Program (Analog Input Unit) 11 - 5................................

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Table of Contents

FP2 Analog Unit

iii

Chapter 12 Sample Program for Analog Output Hold Setting

12.1 Output Hold Setting Basic Program (CPU Unit with Analog I/O) 12 - 3.......

12.2 Output Hold (Any Value) Setting Program 12 - 4..........................

Chapter 13 Troubleshooting

13.1 Problems Concerning the Analog Input 13 - 3.............................

13.2 Problems Concerning the Analog Output 13 - 4...........................

Chapter 14 Specifications

14.1 Table of Performance Specifications 14 - 3...............................

14.2 Table of Input/Output Contact Allocation 14 - 7............................

14.3 Table of Shared Memory Area 14 - 8....................................

14.4 Shared Memory for Analog Input Processing 14 - 13.......................

14.5 Shared Memory of Analog Output Processing 14 - 17......................

Record of changes

R-1...................................................

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Precautions Before You Start

About a similar manual

For FP2 Analog Input Unit, there are two manuals, which is for FP2-AD8 (traditional type), and for FP2­AD8VI, AD8X and RTD (new type).
The appropriate manual must be refered to use each product.
(T

w

o manuals for FP2 Analog Output Unit FP2-DA4 include the same contents.)

Manual Name Manual No. Relevant models

This manual FP2 Analog Unit ARCT1F283 FP2-AD8
New manual FP2 New Analog Unit ARCT1F397 FP2-AD8VI,FP2-AD8X,FP2-RTD

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Chapter 1

Functions and Restrictions

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FP2 Analog UnitFunctions and Restrictions

1-2

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FP2 Analog Unit Functions and Restrictions

1-3

1.1 Features

1.1 Features

Analog input

16-bit high resolution
High-speed A/D conversion (500µs to 90ms/channel)
Multiple input range (12 types such as voltage, current, and temperature sensor)
Temperature sensor (resistance thermometer device, thermocouple) direct input

possible

Analog output

12-bit resolution
High-speed D/A conversion (500µs/channel)
Dual output range (

±

10V and 0 to 20mA)

Handling of I/O data

During the processing of the program, the analog input and output data is allocated to
the normal I/O (X and Y) and refreshed.

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FP2 Analog Unit

Functions and Restrictions

1-4

1.2 Type of Unit

1.2 Type of Unit

Name Function Order number

CPU unit with analog I/O

Analog input: 4-channel
Analog output: 1-channel

FP2-C1A

Analog input unit

Analog input: 8-channel FP2-AD8

Analog output unit

Analog output: 4-channel FP2-DA4

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FP2 Analog Unit

Functions and Restrictions

1-5

1.3 Data Processing Functions

1.3 Data Processing Functions

1.3.1 Analog Input

For analog input, there is the “General sampling function,” “Averaging function,” and
“Offset changing function.”

1.3.1.1 General Sampling Function

The analog input values are converted point by point and the digital values are stored
in converted value area (input contact area).

1.3.1.2 Averaging Function

From the data sampled according to the number of times set in the shared memory, the
average value of the data (excluding the maximum and minimum values) is stored in
the conversion value area (input contact area). If the number of times is 2 or less, or
outside of the allowable range (65 or more), the general sampling function is used.

The time for the average value to be stored in the conversion value area changes
drastically depending on the number of inputs used, the used input range, and the
average number of times.

For detailed information

section 6.3

1.3.1.3 Offset Changing Function

The conversion data for the all ranges of the input channels is offset by the amount set
in the shared memory (range: -2048 to +2047) and stored in the conversion value area
(input contact area).

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FP2 Analog Unit

Functions and Restrictions

1-6

1.3 Data Processing Functions

1.3.2 Analog Output

For analog output, there is the “Analog output hold function.”

1.3.2.1 Analog Output Hold Function

Non-hold, hold (final value during RUN mode), and hold (any value) for the analog
output during the FP2 CPU unit PROG. mode can be set by the shared memory
settings.

For hold (final value during RUN mode), the analog output value is held corresponding
to the final digital data written during the RUN mode before changing to the FP2 CPU
unit PROG. mode.

Forhold (any value), the analogoutputvalueis held corresponding totheholddata(any
value) set in the shared memory when changing to the FP2 CPU unit PROG. mode.

Note

When set to either hold (final value duringl RUN mode) or hold
(any value), the each analog output is held during stops in
operatiohn due to FP2 CPU unit hardware malfunctions or
operation delays.

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FP2 Analog Unit

Functions and Restrictions

1-7

1.4 Installation Restrictions

1.4 Installation Restrictions

1.4.1 CPU Unit with Analog I/O

Can only be installed the CPU unit with analog I/O to the immediate right of the power
supply unit on the CPU backplane (where the CPU unit is normally located).

Cannot be installed the CPU unit with analog I/O on an expansion backplane.

CPU backplane

CPU unit with analog I/O

Expansion backplane

Expansion
cable

Cannot be installed here

Cannot be installed on an
expansion backplane

1.4.2 Analog Input Unit and Analog Output Unit

There are no restrictions regarding the installation position when installed on the CPU
backplane or expansion backplane.

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FP2 Analog Unit

Functions and Restrictions

1-8

1.5 Current Consumption

1.5 Current Consumption

The internal current consumption values for the FP2 analog units noted below.
When the system is configured, the other units being used should be taken into

consideration, and a power supply unit with a sufficient capacity should be used.

Name Order number Current consumption (at 5 V DC)

CPU unit with analog I/O FP2-C1A 1,060mA or less
Analog input unit FP2-AD8 500mA or less
Analog output unit FP2-DA4 600mA or less

Forinformationon restrictions applying to combinations basedon current consumption,
refer to the FP2 hardware manual and each unit’s manuals.

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FP2 Analog Unit

Functions and Restrictions

1-9

1.6 Range Setting Restrictions

1.6 Range Setting Restrictions

The following combinations cannot be specified within the same unit when setting the
range for each channel using software.

Range Voltage input Current in-

Thermocou-

R.T.D. input

+ / - 10V,
1to5V

+ /- 100 mV

put ple input

Voltage
input

+/-10V,

1to5V

A A A A A

+ / - 100 mV

A A N/A A A

Current input

A N/A A N/A N/A

Thermocouple input

A A N/A A A

R.T.D. input

A A N/A A A

A: Combination available, N/A: Combination not available

The current input and thermocouple input cannot be used at the same time.
The current input and R.T.D. input cannot be used at the same time.
The current input and +/-100mV voltage input cannot be used at same time.

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FP2 Analog Unit

Functions and Restrictions

1-10

1.6 Range Setting Restrictions

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Chapter 2

Parts and Specifications

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FP2 Analog UnitParts and Specifications

2-2

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FP2 Analog Unit Parts and Specifications

2-3

2.1 CPU Unit with Analog I/O (FP2-C1A)

2.1 CPU Unit with Analog I/O (FP2-C1A)

4

32

1

7

6

5

8

9 10

F

ront

Bac

k

1

Status indicator LEDs

display the operating condition and error statuses.

2

Mode selector

is used to change the operation mode.

3

Initialize/test switch

is used to clear the errors, initializes the operation memory and set the test operation
mode.

4

Analog input terminals

For CPU unit with analog I/O, there are analog input terminals for channels 0 to 3.
The terminal block can be removed to facilitate wiring.

For detailed information

section 3.1.2

5

Tool port (RS232C)

is used to connect a programming tool.

6

COM port (RS232C)

is used to connect a computer or general-serial devices with RS232C port.

next page

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FP2 Analog UnitParts and Specifications

2-4

2.1 CPU Unit with Analog I/O (FP2-C1A)

7

Analog output terminals

For CPU unit with analog I/O, there are analog output terminals for channel 1.
Terminals with a dot mark are not used; however, they are connected to the analog

input circuit internally so do not connect anything to them.
The terminal block can be removed to facilitate wiring.

For detailed information

section 3.1.2

8

Range setting switch

Used to set the analog input and output range.
For detailed information

section 4.1

9

Operation condition switches

are used to set the baud rate of the programming tool, to select the program memory
and to select the writing operation for the program memory.

10

Memory backup battery

for backup of the internal memory (RAM).
Order number: AFC8801 (CR2450 or equivalent)

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FP2 Analog Unit Parts and Specifications

2-5

2.2 Analog Input Unit (FP2-AD8)

2.2 Analog Input Unit (FP2-AD8)

1

2

1

Analog input terminals

For analog input unit, there are analog input terminals for channels 0 to 7.
The terminal block can be removed to facilitate wiring.

For detailed information

section 3.1.2

2

Range setting switch

Used to set the analog input range.
For detailed information

section 4.1.1

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FP2 Analog UnitParts and Specifications

2-6

2.3 Analog Output Unit (FP2-DA4)

2.3 Analog Output Unit (FP2-DA4)

1

2

1

Analog output terminals

For analog output unit, there are analog outpput terminals for channels 0 to 3.
Terminals with a dot mark are not used; however, they are connected to the analog
input circuit internally so do not connect anything to them.

The terminal block can be removed to facilitate wiring.
For detailed information

section 3.1.2

2

Range setting switch

Used to set the analog output range.
For detailed information

section 4.1.2

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Chapter 3

Wiring

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FP2 Analog UnitWiring

3-2

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FP2 Analog Unit Wiring

3-3

3.1 Suitable Terminals and Wires

3.1 Suitable Terminals and Wires

3.1.1 Suitable Terminals and Suitable Wires

Suitable connection terminals

M3 terminal screws are used for the terminals of analog input and output units. The
followingsuitable connectionterminals arerecommendedfor thewiringto theterminals.

6mm or less

6mm or less

3.2mm or more

Fork type terminal Round type terminal

3.2mm or more

Suitable wires

Size Torque

AWG22 to AWG14 (0.3mm2to 2.0mm2) 0.5 to 0.6NVm

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FP2 Analog UnitWiring

3-4

3.1 Suitable Terminals and Wires

3.1.2 Wiring to Terminal Block

Remove the terminal block before beginning the wiring operations. To remove the
terminal block, push downward on the release lever located at the top of the terminal
block.

1

2

OPEN

8

Terminals

Note

Install the terminal block by inserting it all the way to its original
position and pressing the lock button on the bottom of the unit.
Then confirm that the terminal block is securely attached and
cannot be removed.

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FP2 Analog Unit Wiring

3-5

3.2 Wiring for Analog Input

3.2 Wiring for Analog Input

3.2.1 Voltage Input (±10V, 1 to 5V and ±100mV ranges)

COM

In

Input equipment

Shielded wire

Ch n
Input terminals

There is no ground terminal
on the analog input units.

Vn

3.2.2 Current Input (±20mA and 4 to 20mA ranges)

Vn

COM

In

Input equipment

Shielded wire

Ch n
Input terminals

There is no ground terminal
on the analog input units.

3.2.3 Thermocouple Input (J, K, R, S and T ranges)

COM

In

Thermocouple

Thermocouple polarity:+side

Thermocouple polarity:-side

Ch n
Input terminals

Vn

There is no ground terminal
on the analog input units.

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FP2 Analog UnitWiring

3-6

3.2 Wiring for Analog Input

3.2.4 R.T.D. (Resistance thermometer device) Input (Pt100, Pt1000)

Vn

COM

In

There is no ground terminal
on the analog input units

Ch n
Input terminals

Three-wire R.T.D.
(Resistance thermometer device)

3.2.5 Precautions Regarding Analog Input Wiring

Forthe wiringof “sections3.2.1and 3.2.2”ranges,always usedouble-core twisted-pair
shielded wires.

Ground the shielding of the shielded wires by connecting them to the ground terminal
at the analog input terminal block (for CPU unit with analog I/O), or to the frame ground
at the control panel.
The analog input terminal block’s grounding terminal of the CPU unit with analog I/O is
connected to the FP2 power supply unit’s grounding terminal inside the FP2.

For the current input of “section 3.2.2”, connect terminals V and I.
For the thermocouple input of “section 3.2.3”, perform the wiring correctly according to

the polarity of the thermocouple. Also, to lengthen the signal wire of the thermocouple,
use the compensating wire of the thermocouple.

For copper wiring used in wiring the R.T.D. (resistance thermometer device) in “section

3.2.4”, use insulated wiring, and wiring with a nominal cross-section of 1.25mm

2

(or

equivalent) to not allow a large build-up in electrical resistance.
Do not have the analog input wiring close to AC wires, power wires, or load wires from

sources other than the PLC.
The terminals marked with a dot on the input and output terminal blocks are not to be

used. However,they may be connected to circuits internally, so be sure not to connect
any wiring to them.

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FP2 Analog Unit Wiring

3-7

3.3 Wiring for Analog Output

3.3 Wiring for Analog Output

3.3.1 Voltage Output (±10V range)

Vn

COM

In

E

Ch n
Output terminals

Load equipment

Shielded wire

3.3.2 Current Output (0 to 20mA range)

Vn

COM

In

E

Ch n
Output terminals

Load equipment

Shielded wire

3.3.3 Precautions Regarding Analog Output Wring

For the analog output wiring, always use double-core twisted-pair shielded wires.
Ground the shielding of the shielded wires at the side of the load devices. However,

depending on the conditions of the external noise, it may be necessary to ground
externally, or leave the shielding open.

Do not have the analog output wiring close to AC wires, power wires, or load wires from
sources other than the PLC.

The terminals marked with a dot on the input and output terminal blocks are not to be
used. However,they may be connected to circuits internally, so be sure not to connect
any wiring to them.

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FP2 Analog UnitWiring

3-8

3.4 EMC Conformity

3.4 EMC Conformity

The FP2 CPU unit with analog I/O (FP2-C1A), FP2 Analog input unit (FP2-AD8) and
FP2 Analog output unit (FP2-DA4) conform to the European EMC standards
EN50081-2: 1993, EN50082-2: 1995 as required by the European EMC Directive
89/336/EEC.

As a condition for conformity to the above standards, a ferrite core is attached to the
wiring that goes to the terminal blocks (as shown below).

Analog I/O wires

Ferrite core

Side view of analog unit

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