Panasonic AFP7CPS4E User manual

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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 safety.
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 excessive exothermic heat or smoke generation, use this product at the values
less than the maximum of the characteristics and performance that are assured in these
specifications.
-Do not dismantle or remodel the product. It could cause excessive 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 could cause excessive 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 could cause excessive exothermic heat or smoke generation.
-Do not undertake construction (such as connection and disconnection) while the power
supply is on. It could lead to an electric shock.
Copyright / Trademarks
-This manual and its contents are copyrighted.
-You may not copy this manual, in whole or part, without written consent of Panasonic
Industrial Devices SUNX Co., Ltd.
-Windows is a registered trademark of Microsoft Corporation in the United States and other
countries.
-All other company names and product names are trademarks or registered trademarks of
their respective owners. PLC_ORG
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Introduction
Thank you for buying a Panasonic product. Before you use the product, please carefully read
the installation instructions and the users manual, and understand their contents in detail to
use the product properly.
Types of Manual
There are different types of user's manual for the FP7 series, as listed below. Please refer to
a relevant manual for the unit and purpose of your use.

The manuals can be downloaded on our website.
Unit name or purpose of
use Manual name Manual code
FP7 Power Supply Unit FP7 CPU Unit Users Manual (Hardware) WUME-FP7CPUH
FP7 CPU Unit Command Reference Manual WUME-FP7CPUPGR
FP7 CPU Unit Users Manual
(Logging Trace Function) WUME-FP7CPULOG
FP7 CPU Unit
FP7 CPU Unit Users Manual (Security Function) WUME-FP7CPUSEC
Instructions for Built-in
LAN Port FP7 CPU Unit Users Manual (LAN Port Communication) WUME-FP7LAN
Instructions for Built-in
COM Port
FP7 Extension Cassette
(Communication)
(RS-232C/RS485 type)
FP7 series Users Manual (SCU communication) WUME-FP7COM
FP7 Extension Cassette
(Communication)
(Ethernet type)
FP7 series Users Manual (Communication
cassette Ethernet type) WUME-FP7CCET
FP7 Extension (Function)
Cassette
Analog Cassette FP7 Analog Cassette Users Manual WUME-FP7FCA
(Upcoming)
FP7 Digital Input/Output Unit FP7 Digital Input/Output Unit Users Manual WUME-FP7DIO
FP7 Analog Input Unit FP7 Analog Input Unit Users Manual WUME-FP7AIH
FP7 Analog Output Unit FP7 Analog Output Unit Users Manual WUME-FP7AOH
FP7 High-speed counter Unit FP7 High-speed counter Unit Users Manual WUME-FP7HSC
FP7 Pulse Output Unit FP7 Pulse Output Unit Users Manual WUME-FP7PG
(Upcoming)
FP7 Positioning Unit FP7 Positioning Unit Users Manual WUME-FP7POSP
FP7 Serial Communication
Unit FP7 series Users Manual (SCU communication) WUME-FP7COM
PHLS System PHLS System Users Manual WUME-PHLS
Programming Software
FPWIN GR7 FPWIN GR7 Introduction Guidance WUME-FPWINGR7
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Table of Contents
ii
Table of Contents
1. Functions of Units and Restrictions on Combination.....1-1
1.1 Features and Functions of Units ............................................................ 1-2
1.1.1 Functions of Units....................................................................................1-2
1.1.2 Types of Unit...........................................................................................1-3
1.1.3 Types of Cassette ...................................................................................1-3
1.1.4 Applications that can be Used in Each Port............................................1-3
1.2 Overview of Communication Functions.................................................. 1-4
1.2.1 PLC Link Functions (MEWNET-W0).......................................................1-4
1.2.2 MEWTOCOL Master/Slave Communication...........................................1-5
1.2.3 MODBUS RTU Master/Slave Communication........................................1-6
1.2.4 General-Purpose Communication...........................................................1-7
1.3 Restrictions on Units Combination......................................................... 1-8
1.3.1 Restrictions on the Number of Installed Units.........................................1-8
1.3.2 Restrictions on the Combination of Extension Cassettes (Communication
Cassettes)...............................................................................................1-8
1.3.3 Restrictions on Communication Functions to be Used...........................1-8
1.3.4 Unit to be Used and Applicable Versions of CPU Unit and FPWIN GR71-8
1.3.5 Restrictions on Consumption Current.....................................................1-9
2. Names and Functions of Parts ..........................................2-1
2.1 Names and Functions of Parts............................................................... 2-2
2.1.1 Communication Port of CPU Unit............................................................2-2
2.1.2 Parts Names and Functions of Serial Communication Unit....................2-3
3. Wiring the COM. Port..........................................................3-1
3.1 Attaching a Communication Cassette.................................................... 3-2
3.1.1 Attachment Instructions...........................................................................3-2
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iii
3.2 Wiring of COM Port Terminal Block........................................................3-3
3.2.1 Suitable Wires and Tools........................................................................3-3
3.2.2 Applicable Cable.....................................................................................3-4
3.2.3 Wiring Method.........................................................................................3-5
3.3 Wiring for CPU Unit (GT Power Supply and COM0 Port).......................3-6
3.3.1 Handling of GT Power Supply Terminals................................................3-6
3.3.2 Terminal Layouts and Examples of Wiring .............................................3-6
3.4 Wiring for Communication Cassettes COM.1 to COM.4 Ports...............3-8
3.4.1 Communication Cassette AFP7CCS1 (RS-232C, 1-Channel Insulated
Type).......................................................................................................3-8
3.4.2 Communication Cassette AFP7CCS2 (RS-232C, 2-channel insulated
type) ........................................................................................................3-9
3.4.3 Communication Cassette AFP7CCM1 (RS-422 / RS-485, 1-Channel
Insulated Type) .....................................................................................3-12
3.4.4 Communication Cassette AFP7CCM2 (RS-422 / RS-485, 2-Channel
Insulated Type) .....................................................................................3-15
3.4.5 Communication Cassette AFP7CCS1M1 (RS-232C 1-Channel + RS-485
1-Channel Insulated Type)....................................................................3-19
4. I/O Allocation .......................................................................4-1
4.1 Input/Output Signals Used for Communication.......................................4-2
4.1.1 I/O Allocation of CPU Unit.......................................................................4-2
4.1.2 I/O Allocation of Serial Communication Unit...........................................4-4
4.2 Registration in I/O Map...........................................................................4-6
4.2.1 Settings Using FPWIN GR7 (For CPU with built-in SCU).......................4-6
4.2.2 Settings Using FPWIN GR7 (For Serial Communication Unit) ...............4-6
5. Setting and Confirming Communication Conditions.......5-1
5.1 Setting Applications and Communication Conditions.............................5-2
5.1.1 Applications to be Set for Each Port .......................................................5-2
5.1.2 Conditions to be Set for Each Port..........................................................5-2
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Table of Contents
iv
5.2 Setting Communication Conditions........................................................ 5-3
5.2.1 Settings Using FPWIN GR7 (For CPU with built-in SCU).......................5-3
5.2.2 Settings Using FPWIN GR7 (For Serial Communication Unit) ...............5-4
6. PLC Link...............................................................................6-1
6.1 Operation of PLC link MEWNET-W0...................................................... 6-2
6.1.1 Overview of PLC Link Operation.............................................................6-2
6.1.2 Operation of Link Relays and Link Registers..........................................6-3
6.2 Configuration Required for PLC Link...................................................... 6-4
6.2.1 Setup Procedure (For CPU with built-in SCU)........................................6-4
6.2.2 Setup Procedure (For Serial Communication Unit).................................6-5
6.2.3 List of Setting Items.................................................................................6-6
6.3 Setting Items for PLC Link...................................................................... 6-7
6.3.1 Station No. Setting ..................................................................................6-7
6.3.2 Max. Station No. Setting..........................................................................6-7
6.3.3 Memory Block Numbers for Link Relays and Link Registers to be Used6-8
6.3.4 Range of Use of Link Relays and Range of Use of Link Registers ........6-8
6.3.5 Starting No. for Link Relay Send Area and Sending Size.......................6-9
6.3.6 Starting No. for Link Register Send Area and Sending Size.................6-10
6.4 PLC Link Response Time..................................................................... 6-12
6.4.1 Response Time of 1 Transmission Cycle..............................................6-12
6.4.2 Response Time When There is a Station Yet to be Added ..................6-14
7. MEWTOCOL Master/Slave Communication......................7-1
7.1 Configuration.......................................................................................... 7-2
7.1.1 Setting Communication Conditions.........................................................7-2
7.2 List of MEWTOCOL / MEWTOCOL7 Supporting Commands................ 7-3
7.2.1 List of MEWTOCOL Commands.............................................................7-3
7.2.2 List of MEWTOCOL7 Commands...........................................................7-3
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v
7.3 MEWTOCOL-COM Master Communication (RECV)..............................7-4
7.3.1 Read Data from an External Device .......................................................7-4
7.3.2 RECV Instruction (When MEWTOCOL-COM is Used)...........................7-7
7.4 MEWTOCOL-COM Master Communication (SEND)..............................7-8
7.4.1 Write Data into an External Device.........................................................7-8
7.4.2 SEND Instruction (When MEWTOCOL-COM is Used).........................7-11
8. MODBUS RTU Master/Slave Communication..................8-1
8.1 Configuration ..........................................................................................8-2
8.1.1 Setting Communication Conditions.........................................................8-2
8.2 List of MODBUS RTU Supported Commands........................................8-3
8.2.1 List of MODBUS Function Codes............................................................8-3
8.3 MODBUS RTU Master Communication (RECV)....................................8-4
8.3.1 Read Data from an External Device .......................................................8-4
8.3.2 RECV Instruction (MODBUS Function Code Specified Type)................8-7
8.3.3 RECV Instruction (MODBUS Function Code Unspecified Type)............8-8
8.4 MODBUS RTU Master Communication (SEND)....................................8-9
8.4.1 Write Data into an External Device.........................................................8-9
8.4.2 SEND Instruction (MODBUS Function Code Specified Type)..............8-12
8.4.3 SEND Instruction (MODBUS Function Code Unspecified Type)..........8-13
9. General-Purpose Communication .....................................9-1
9.1 Operation of General-Purpose Communication......................................9-2
9.1.1 Read Data from an External Device .......................................................9-2
9.1.2 Write Data into an External Device.........................................................9-2
9.2 Configuration ..........................................................................................9-3
9.2.1 Setting Communication Conditions.........................................................9-3
9.3 Sending Operation..................................................................................9-4
9.3.1 Overview of Sending Operation..............................................................9-4
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Table of Contents
vi
9.3.2 Contents of Sent Data.............................................................................9-6
9.3.3 GPSEND (General-Purpose Communication Sending Instruction)........9-7
9.3.4 Precautions on Sending Data .................................................................9-8
9.4 Receiving Operation............................................................................... 9-9
9.4.1 Overview of Receiving Operation............................................................9-9
9.4.2 Contents of Received Data ...................................................................9-12
9.4.3 Precautions on Receiving Data.............................................................9-12
9.4.4 Operations of the "Reception done copy" flag and multiplex reception9-13
9.4.5 GPRECV (General-Purpose Communication Receiving Instruction) ...9-14
9.5 Sending/Receiving Flag Operation....................................................... 9-15
9.5.1 No Header (Start Code), Terminator (End Code) "CR": .......................9-15
9.5.2 Start Code "STX", End Code "ETX":.....................................................9-16
10. Troubleshooting...............................................................10-1
10.1 Self-diagnostic Function....................................................................... 10-2
10.1.1 CPU Unit’s Operation Monitor LED.......................................................10-2
10.1.2 Operation at the Time of Error ..............................................................10-2
10.1.3 Serial Communication Unit's Operation Monitor LED...........................10-3
10.2 What to DO If an Error Occurs (For Each Communication Mode)...... 10-4
10.2.1 When Using PLC Link Function ............................................................10-4
10.2.2 When Using MEWTOCOL/ MEWTOCOL7/ MODBUS-RTU Function..10-4
10.2.3 When Using General-purpose Communication Function......................10-5
10.3 Checking Status with PMGET Instruction ............................................ 10-6
10.3.1 Specifications of PMGET Instruction.....................................................10-6
10.3.2 List of Communication Parameters.......................................................10-6
10.4 Clearing Errors Using User Programs.................................................. 10-9
10.4.1 Clearing Errors Using User Programs...................................................10-9
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Table of Contents
vii
11. Specifications ...................................................................11-1
11.1 Communication Function Specifications...............................................11-2
11.1.1 CPU Unit Communication Specifications..............................................11-2
11.1.2 Extension Cassette Communication Specifications..............................11-4
11.2 MEWTOCOL-COM Format...................................................................11-5
11.2.1 MEWTOCOL-COM Command Format.................................................11-5
11.2.2 MEWTOCOL-COM Response Format..................................................11-7
11.3 MEWTOCOL7-COM Format.................................................................11-9
11.3.1 MEWTOCOL7-COM Command Format...............................................11-9
11.3.2 MEWTOCOL7 Response Format .......................................................11-11
11.4 MODBUS RTU Format.......................................................................11-13
11.4.1 MODBUS RTU Command Format......................................................11-13
11.4.2 MODBUS RTU Response Format ......................................................11-14
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Table of Contents
viii
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1
Functions of Units and
Restrictions on Combination
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Functions of Units and Restrictions on Combination
1-2
1.1 Features and Functions of Units
1.1.1 Functions of Units
Removable serial communication cassettes are used.
Selectable from five communication cassettes in conformity with communication standards
of RS-232C, RS-422 and RS-485. (Sold separately)
One communication cassette can be attached to the CPU unit, and two communication
cassettes to the serial communication unit.
The CPU unit includes a COM.0 port as standard equipment.
The CPU unit includes a RS-232C port (3-wire type) for the connection with a programmable
display and a power supply as standard equipment.
Four communication modes are available.
The PC link, MEWTOCOL, MODBUS RTU and general-purpose communication modes are
provided, and many serial communication devices can be connected by the combination of
communication cassettes.
CPU Unit
Two
communication
cassettes can be
attached.
One
communication
cassette can be
attached.
COM.0 port is
equipped as standard.
(For 3-wire RS-232C)
Serial Communication Unit
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1.1 Features and Functions of Units
1-3
1.1.2 Types of Unit
Types of unit that can perform serial communication
Communication ports that can be allocated
Name Model no. COM.0 COM.1 COM.2 COM.3 COM.4
CPU Unit AFP7CPS4E AFP7CPS3E
AFP7CPS3 ●●●
Serial Communication Unit AFP7NSC ●●●●
(Note 1) The COM.0 port equipped in the CPU unit is a terminal block especially for RS-232C (3-wire type).
1.1.3 Types of Cassette
Types of communication cassette Communication ports that can be allocated
Model no. Communication interface COM.0 COM.1 COM.2 COM.3 COM.4
AFP7CCS1 1-channel RS-232C ●●
3-wire 2-channel RS-232C ●●●●
AFP7CCS2 5-wire 1-channel RS-232C ●●
AFP7CCM1 1-channel RS-422 / RS-485 ●●
AFP7CCM2 2-channel RS-422 / RS-485 ●●●●
1-channel RS-485 ●●
AFP7CCS1M1 3-wire 1-channel RS-232C ●●
(Note 1) For AFP7CCS2, select and use either 3-wire 2-channel RS-232C or 5-wire 1-channel RS-232C. Switching
should be performed using a switch on the Communication Cassette.
(Note 2) For AFP7CCM1 and AFP7CCM2, select and use either RS-422 or RS-485. Switching should be performed
using a switch on the Communication Cassette.
(Note 3) For AFP7CCS1M1, both 1-channel RS-485 and 3-wire 1-channel RS-232C can be used.
1.1.4 Applications that can be Used in Each Port
Available functions for each communication port
Communication ports that can be allocated
Communication function to be used COM.0 COM.1 COM.2 COM.3 COM.4
PLC link ●
Master ●●●●●
MEWTOCOL7-COM (Note 1)
MEWTOCOL-COM Slave ●●●●●
Master ●●●●●
MODBUS-RTU Slave ●●●●●
General-purpose communication ●●●●●
(Note 1) In MEWTOCOL7-COM, there is no master communication function.
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Functions of Units and Restrictions on Combination
1-4
1.2 Overview of Communication Functions
1.2.1 PLC Link Functions (MEWNET-W0)
Overview of function
A system can be configured for the PLC link (MEWNET-W0).
Exclusive internal relays “link relays (L)” and data registers “link registers (LD)” are shared
between the connected PLCs.
Among up to 16 PLCs, data can be exchanged with 1,008 link relay points and 128 link
register words.
Applications of PLC Link Functions (MEWNET-W0)
Among our FP series PLC, it can be used for link functions with the following models. It is also
capable of 1:1 communication via RS-232C port.
FP-X0 (L40MR / L60MR)
FP0R (RS485 type)
FPΣ(Using Communication cassette RS-485 type)
FP-X (Using Communication cassette RS-485 type)
FP2 Multi Communication Unit (Using Communication cassette RS-485 type)
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1.2 Overview of Communication Functions
1-5
1.2.2 MEWTOCOL Master/Slave Communication
Overview of function
Execute communication using MEWTOCOL-COM, a communication protocol used by our PLC.
In master communication, PLC executes communication by sending commands to devices that
support MEWTOCOL, and receiving responses. Messages in accordance with the protocol are
automatically generated by PLC. In the user program, reading and writing can be done simply by
specifying the station no. and memory address and executing SEND/RECV instructions.
Slave communication is performed when the computer or display connected to PLC has the
sending right, and sends commands, and PLC returns responses. In slave communication, PLC
responds automatically, so no program concerning communication is necessary on the PLC side.
The data size that can be sent or received in a single communication is up to 507 words for
register transmission (up to 1,014 words for MEWTOCOL7-COM) and 1 bit for bit transmission.
Master function
Slave function
Examples of applications of MEWTOCOL master communication
This is used for connection with a device that supports our PLC's protocol MEWTOCOL.
Programmable controller FP series
Displacement sensor HL series
Eco power meter KW series
Examples of applications of MEWTOCOL slave communication
This is used for connection with a device that supports our PLC's protocol MEWTOCOL-COM
master communication.
Programmable displays made by various manufacturers
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Functions of Units and Restrictions on Combination
1-6
1.2.3 MODBUS RTU Master/Slave Communication
Overview of function
This is used for communicating with other devices that support the MODBUS RTU protocol.
In master communication, communication is performed when the master unit sends
instructions (command messages) to slave units and the slave unit returns responses
(response messages) according to the instructions. Messages in accordance with the
protocol are automatically generated by PLC. In the user program, reading and writing can
be done simply by specifying the station no. and memory address and executing
SEND/RECV instructions.
Slave communication is performed when the higher device connected to PLC has the
sending right, and sends commands, and PLC returns responses. In slave communication,
PLC responds automatically, so no program concerning communication is necessary on the
PLC side.
The data size that can be sent or received in a single communication is up to 127 words for
register transmission and 2,040 bit for bit transmission.
Master function
Slave function
Examples of applications of MODBUS-RTU master communication
This is used for connection with a device that supports the MODBUS-RTU protocol.
Thermoregulator KT series
Devices from other manufacturers that support MODBUS-RTU
Examples of applications of MODBUS-RTU slave communication
This is used when access is made from the higher device using MODBUS-RTU commands.
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1.2 Overview of Communication Functions
1-7
1.2.4 General-Purpose Communication
Overview of function
General-purpose communication is used when PLC executes communication in accordance
with the protocol of the partner device.
Formulation and sending of command messages to the partner device, and reception
processing of responses from the partner device, are performed by the user program.
Sending/receiving of data with an external device is executed via given operation memory
(e.g. data register).
Data are sent by converting commands in accordance with the partner device as strings into
ASCII text, setting them into a given data register, and executing GPSEND instruction.
Response received from the partner device is temporarily saved in the buffer. Based on the
reception done flag, GPRECV instruction is executed. The ASCII strings can be converted
into numerical data, etc. as necessary, by the user program.
The data size that can be sent or received in a single communication is up to 4,096 bytes.
(including control codes)
Applications of general-purpose communication
This is used for connection with devices made by differing manufacturers that have dedicated
communication protocols.
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Functions of Units and Restrictions on Combination
1-8
1.3 Restrictions on Units Combination
1.3.1 Restrictions on the Number of Installed Units
There are following restrictions depending on units to be used.
Unit type Number of installed units Remarks
Serial Communication Unit Max. 8 units
1.3.2 Restrictions on the Combination of Extension Cassettes
(Communication Cassettes)
One communication cassette can be attached to the CPU unit, and two communication
cassettes to the serial communication unit.
The FP7 communication cassette (Ethernet type) can be attached to the CPU only. It cannot
be attached to the serial communication unit (SCU).
1.3.3 Restrictions on Communication Functions to be Used
There are the following restrictions on functions to be used when using the SCU or ET-LAN
that is built in the CPU unit, or the serial communication unit (SCU).
Function to be used Restrictions
PLC link function
Up to two communication ports can be used. For using two ports, allocate
different link areas to them.
CPU with built-in SCU (COM.1 port)
Serial communication unit (COM.1 port)
MEWTOCOL-COM master
MODBUS-RTU master
A maximum of 16 communication ports and the number of connections in
combination can be used simultaneously.
CPU with built-in SCU (COM.1 port to COM. 2 port)
Serial communication unit (COM.1 port to COM.4 port)
CPU with built-in ET-LAN (User connections 1 to 16)
MEWTOCOL-COM slave
MEWTOCOL7-COM slave
MODBUS-RTU slave
A maximum of 15 communication ports and the number of connections in
combination can be used simultaneously.
CPU with built-in SCU (COM.1 port to COM. 2 port)
Serial communication unit (COM.1 port to COM.4 port)
CPU with built-in ET-LAN
(System connections 1 to 4 / User connections 1 to 16)
General-purpose
communication There is no restriction.
1.3.4 Unit to be Used and Applicable Versions of CPU Unit and FPWIN GR7
For using the unit, the following versions of CPU unit and FPWINGR7 are required.
Applicable versions
Unit type CPU unit FPWINGR7 Remarks
FP7 Serial Communication Unit Ver.1.2 or later Ver.1.3 or later
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1.3 Restrictions on Units Combination
1-9
1.3.5 Restrictions on Consumption Current
Including other units, the consumption current should be within the allowable capacity of a
power supply unit.
Unit's consumption current table (24 V)
Product name Model number Consumption
current (mA)
196k steps, Built-in Ethernet
function AFP7CPS4E 200 mA or less
120k steps, Built-in Ethernet
function AFP7CPS3E 200 mA or less
CPU Unit
120k steps, No Ethernet function AFP7CPS3 200 mA or less
RS-232C x 1ch AFP7CCS1 35 mA or less
RS-232C x 2ch AFP7CCS2 60 mA or less
RS-422 / 485 x 1ch AFP7CCM1 60 mA or less
RS-422 / 485 x 2h AFP7CCM2 90 mA or less
RS-232C x 1ch
RS-422 / 485 x 1ch AFP7CCS1M1 70 mA or less
When attaching
Extension Cassette
(Communication
Cassette) to CPU
Unit
(Note 1) (Note 2)
Ethernet AFP7CCET 35 mA or less
Serial Communication Unit AFP7NSC 50 mA or less
RS-232C x 1ch AFP7CCS1 20 mA or less
RS-232C x 2ch AFP7CCS2 40 mA or less
RS-422 / 485 x 1ch AFP7CCM1 30 mA or less
RS-422 / 485 x 2h AFP7CCM2 60 mA or less
When attaching
Extension Cassette
(Communication
Cassette) to Serial
Communication Unit
(Note 1) (Note 2) RS-232C x 1ch
RS-422 / 485 x 1ch AFP7CCS1M1 50 mA or less
(Note 1) The consumption currents listed in the Extension Cassette column indicate the increased amount of the
CPU's consumption current which increases when each extension cassette is added.
(Note 2) The consumption current of extension cassette (communication cassette) varies according to the unit to
which the cassette is attached (CPU or serial communication unit).
REFERENCE
For information on the restrictions on the combination of units, also refer to FP7 CPU
Unit User's Manual (Hardware).
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Functions of Units and Restrictions on Combination
1-10
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