ABB AC500 V3 User guide

SYSTEM MANUAL
PLC Automation
Automation Builder, programmable logic control-
lers, control panels
Automation Builder, AC500 V3, AC500-eCo V3, AC500-XC V3, AC500-S, CP600, CP600-eCo,
CP600-Pro

—
Table of contents
1 Preface............................................................................................................................................................. 4
1.1 Guidance through the documentations..................................................................................................... 4
1.2 Do I have AC500 V2 or AC500 V3?.......................................................................................................... 4
1.3 Regulations............................................................................................................................................... 5
1.4 Older revisions of this document............................................................................................................... 5
1.5 Use the "magic button" to display your current position in the table of contents....................................... 6
1.6 Structure of safety notices......................................................................................................................... 6
2 Safety instructions.......................................................................................................................................... 8
3System overview........................................................................................................................................... 12
3.1 AC500 PLC product family...................................................................................................................... 12
3.2 AC500/S500 system structure................................................................................................................. 13
3.3 AC500-eCo/S500-eCo system structure................................................................................................. 14
3.4 AC500/S500: Short description hardware............................................................................................... 16
3.5 AC500-eCo/S500-eCo: Short description hardware............................................................................... 20
3.6 AC500-S.................................................................................................................................................. 21
3.7 CP600 control panels.............................................................................................................................. 22
3.8 Automation Builder: Short description engineering software................................................................... 22
4 Application planning..................................................................................................................................... 24
4.1 Processor module and I/O selection....................................................................................................... 24
4.2 Communication within the PLC............................................................................................................... 24
4.3 Power supply dimensioning..................................................................................................................... 26
4.3.1 Calculation of the total current consumption............................................................................ 26
4.3.2 Dimensioning of the fuses........................................................................................................ 28
4.4 Libraries and software............................................................................................................................. 29
5 Mechanical planning and installation.......................................................................................................... 30
5.1 Control cabinet assembly for AC500 (Standard)..................................................................................... 30
5.2 Control cabinet assembly for AC500-eCo............................................................................................... 32
5.3 Mounting and demounting - general information..................................................................................... 33
5.3.1 Optimized mounting of the option boards................................................................................ 34
5.4 Mounting and demounting the terminal base.......................................................................................... 35
5.5 Mounting and demounting the AC500 processor module....................................................................... 37
5.6 Mounting and demounting the terminal unit............................................................................................ 38
5.7 Mounting and demounting the communication module........................................................................... 39
5.8 Mounting and demounting the I/O module.............................................................................................. 41
5.9 Mounting and demounting the AC500-eCo processor module............................................................... 42
5.9.1 Mounting a processor module on a DIN rail............................................................................. 42
5.9.2 Demounting a processor module mounted on a DIN rail......................................................... 43
5.9.3 Mounting a processor module on a metal plate....................................................................... 44
5.9.4 Demounting a processor module mounted on a metal plate................................................... 45
5.9.5 Mounting of TA5301-CFA......................................................................................................... 46
5.10 Mounting and demounting the S500-eCo I/O module........................................................................... 46
5.11 Accessories for AC500 (Standard)........................................................................................................ 50
5.11.1 Inserting and removing a memory card.................................................................................. 51
5.12 Accessories for AC500-eCo.................................................................................................................. 52
5.12.1 Mounting and demounting the option boards......................................................................... 52
5.12.2 Mounting and demounting of the terminal blocks for onboard I/Os....................................... 54
5.12.3 Inserting and removing a memory card.................................................................................. 56
Table of contents
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5.13 Control panels CP600........................................................................................................................... 57
6 Wiring............................................................................................................................................................. 58
6.1 Grounding concept.................................................................................................................................. 58
6.2 EMC-conforming assembly and construction.......................................................................................... 59
6.2.1 General principles.................................................................................................................... 59
6.2.2 Cable routing............................................................................................................................ 60
6.2.3 Cable shields............................................................................................................................ 61
6.2.4 Control cabinet......................................................................................................................... 61
6.2.5 Reference potential.................................................................................................................. 62
6.2.6 Equipotential bonding............................................................................................................... 62
6.3 Connection and wiring............................................................................................................................. 63
6.3.1 AC500...................................................................................................................................... 64
6.3.2 AC500-eCo.............................................................................................................................. 71
6.3.3 Control panels CP600.............................................................................................................. 72
7 Configuration and programming................................................................................................................. 73
7.1 Cyber security......................................................................................................................................... 74
7.1.1 Defense in depth...................................................................................................................... 75
7.1.2 Secure operation...................................................................................................................... 76
7.1.3 Hardening................................................................................................................................. 79
7.1.4 Certificates factory default - no encryption............................................................................... 80
7.1.5 Open Ports and Services......................................................................................................... 83
8 Commissioning............................................................................................................................................. 84
9Operation....................................................................................................................................................... 86
9.1 Status LEDs, display and control elements............................................................................................. 86
9.2 PLC firmware/application update............................................................................................................ 86
9.3 Control panel firmware/application update.............................................................................................. 87
9.4 Reset to factory settings.......................................................................................................................... 87
10 Troubleshooting............................................................................................................................................ 88
11 Maintenance................................................................................................................................................... 90
11.1 Replace an AC500 module.................................................................................................................... 90
11.2 Replace an I/O module with hot swap................................................................................................... 91
11.2.1 Preconditions for using hot swap........................................................................................... 91
11.2.2 Compatibility of hot swap....................................................................................................... 94
11.2.3 Hot swap behavior.................................................................................................................. 95
12 Decommissioning......................................................................................................................................... 96
13 Recycling....................................................................................................................................................... 97
14 Appendix........................................................................................................................................................ 98
14.1 Diagnosis messages via display of the processor module.................................................................... 98
14.1.1 Error severity E2: Severe errors............................................................................................. 99
14.1.2 Error severity E3: Minor errors............................................................................................. 100
14.1.3 Error severity E4: Warnings................................................................................................. 104
14.1.4 Error severity E11: Parameter errors................................................................................... 106
14.1.5 Diagnosis messages of communication modules or fieldbuses........................................... 108
14.2 PLC firmware/application update via memory card............................................................................. 108
14.2.1 Preparation of memory card................................................................................................. 108
14.2.2 Execution of update via memory card.................................................................................. 111
15 Glossary....................................................................................................................................................... 113
16 Index............................................................................................................................................................. 116
Table of contents
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1 Preface
1.1 Guidance through the documentations
Where to find information about:
●PLC system
– System description
Ä Chapter 3 “System overview” on page 12
–Getting started: First steps with the platform and create your first program
–Starter kit: Introduction into PLC programming using pre-installed kits, including creation
of control panel visualization
–Safety user manual for safety PLCs
●Devices
–Data sheets
–Installation instructions
–PLC hardware descriptions
–Safety user manual for safety PLCs
–Control panels
●Software and programming
–Engineering suite Automation Builder
–Programming examples for download
–Programming examples available in engineering suite: Open Automation Builder menu
“Help è Project examples”
–Application descriptions for specific features and use cases
–Release notes for the latest version of the engineering suite Automation Builder
1.2 Do I have AC500 V2 or AC500 V3?
This document describes AC500 V3 products.
We offer different ranges of the processor modules (V2, V3). You can easily find out which ones
are used in your system. Either have a look at your used modules or your configuration.
Fig. 1: Hardware: Processor modules
Written type on the module Example Range Relevant manual
Processor module type PM +
3 digits
PM595 V2 AC500 V2
Processor module type PM +
4 digits
PM5670 V3 AC500 V3 (this manual)
Preface
Do I have AC500 V2 or AC500 V3?
2023/03/033ADR011074, 1, en_US4

Fig. 2: Software: Configuration in engineering software Automation Builder
Written type in brackets Example Range Relevant manual
Processor module type PM +
3 digits
PM564 V2 AC500 V2
Processor module type PM +
4 digits
PM5675 V3 AC500 V3 (this manual)
1.3 Regulations
The planning and installation of the electrical system must be carried out in compliance with the
applicable regulations and standards. Hazards due to malfunctions must be prevented by taking
appropriate measures.
The suitability of the products for the respective application is proven by declarations of con-
formity and certificates.
The PLC Automation catalog contains an overview of the available declarations of conformity
and certificates. These can be found in the table "Certifications" in the chapter "Additional
information" of the catalog.
Both the AC500 control system and other components in the vicinity are operated with dan-
gerous touch voltages. Touching live components can lead to serious health implications or
even death.
To avoid such risks and the occurrence of property damage, persons involved in the installation,
commissioning and maintenance must have relevant knowledge about:
● Automation technology
● Handling of hazardous voltages
● Application of relevant standards and regulations, accident prevention regulations and reg-
ulations on special environmental conditions (e.g., hazardous areas due to explosive sub-
stances, heavy soiling or corrosive influences).
1.4 Older revisions of this document
You can always find all revisions of our documents on our website.
System manual
Planning and
installation of
the electrical
system
Qualified per-
sonnel
Preface
Older revisions of this document
2023/03/03 3ADR011074, 1, en_US 5

Revisions Select any of the revisions
Latest revision Get a link to the latest revision
This revision Get a direct link to the selected revision
1.5 Use the "magic button" to display your current position in the table of con-
tents
Documentation is opened in a PDF reader. PDF readers often provide a button to syn-
chronize with the table of contents. Usually, you can find the "magic button" in the bookmarks
tab. For example, it looks like this: /
Select the "magic button".
ðYour current position will be highlighted in the bookmark tab.
1.6 Structure of safety notices
Throughout the documentation we use the following types of safety and information notices.
They make you aware of safety considerations or give advice on AC500 products usage.
1Safety alert symbol indicates the danger.
2Signal word classifies the danger.
3Type and source of the risk are mentioned and possible consequences are described.
4Measures to avoid these consequences (enumerations).
Preface
Structure of safety notices
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DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
Ensure to take measures to prevent the described impending danger.
WARNING!
WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
Ensure to take measures to prevent the described dangerous situation.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
Ensure to take measures to prevent the described dangerous situation.
NOTICE!
NOTICE is used to address practices not related to physical injury but might
lead to property damage for example damage of the product.
Ensure to take measures to prevent the described dangerous situation.
NOTE provides additional information on the product, e.g., advices for configu-
ration or best practice scenarios.
Signal words
Preface
Structure of safety notices
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2 Safety instructions
Relevant standards and regulations, accident prevention regulations and regulations on spe-
cial environmental conditions must be observed (e.g., hazardous areas due to explosive sub-
stances, heavy soiling or corrosive influences).
The devices must be handled and operated within the specified technical data and system data.
The devices contain no serviceable parts and must not be opened.
Removable covers must be closed during operation unless otherwise specified.
Any liability for the consequences of incorrect use or unauthorized repairs is rejected.
Both the AC500 control system and other components in the vicinity are operated with dan-
gerous touch voltages. Touching live components can lead to serious health implications or
even death.
To avoid such risks and the occurrence of property damage, persons involved in the installation,
commissioning and maintenance must have relevant knowledge about:
● Automation technology
● Handling of hazardous voltages
● Application of relevant standards and regulations, accident prevention regulations and reg-
ulations on special environmental conditions (e.g., hazardous areas due to explosive sub-
stances, heavy soiling or corrosive influences).
The AC500-S safety user manual must be read and understood before using the safety configu-
ration and programming tools of Automation Builder/PS501 Control Builder Plus. Only qualified
personnel are permitted to work with AC500-S safety PLCs.
The examples and diagrams in this manual are included solely for illustrative purposes.
Because of the many variants and requirements associated with any particular installation, ABB
cannot assume responsibility or liability for actual use based on the examples and diagrams.
The PLC was developed according to the relevant standards. Any module-specific measures
are described in the individual descriptions of the modules.
The product family AC500 control system is designed according to the EN
61131-2 and IEC 61131-2 standards. Any data that differs from IEC 61131-2,
is due to the higher requirements of Maritime Services. Other differences are
described in the technical data description of the devices.
NOTICE!
Avoidance of electrostatic charging
PLC devices and equipment are sensitive to electrostatic discharge, which can
cause internal damage and affect normal operation. Observe the following rules
when handling the system:
– Touch a grounded object to discharge potential static.
– Wear an approved grounding wrist strap.
– Do not touch connectors or pins on component boards.
– Do not touch circuit components inside the equipment.
– If available, use a static-safe workstation.
– When not in use, store the equipment in appropriate static-safe packaging.
Qualified per-
sonnel
Functional
safety
General infor-
mation
PLC-specific
safety notices
Safety instructions
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NOTICE!
Use of suitable enclosure
The devices must be mounted in a control cabinet that ensures compliance with
the specified environmental conditions.
Cleaning instructions
Do not use cleaning agent for cleaning the device.
Use a damp cloth instead.
Connection plans and a user program must be created so that no dangerous situations can
occur during normal operation or failure.
The application must be tested to ensure that no dangerous situations can occur during opera-
tion.
Do not operate devices outside of the specified, technical data!
Trouble-free functioning cannot be ensured outside of the specified data.
NOTICE!
PLC damage due to missing grounding
– Make sure to ground the devices.
–The grounding (switch cabinet grounding) is supplied both by the mains
connection (or 24 V supply voltage) and via the DIN rail. The DIN rail
must be connected to ground before power is supplied to the device. The
grounding may be removed only if it is certain that no more power is being
supplied to the control system.
– In case of screw mounting, grounding must be ensured by the screws.
CAUTION!
Do not obstruct the ventilation for cooling!
The ventilation slots on the upper and lower sides of the devices must not be
covered.
CAUTION!
Run signal and power wiring separately!
Signal and supply lines (power cables) must be laid out so that no malfunctions
due to capacitive and inductive interference can occur (EMC).
WARNING!
Warning sign on the module!
This indicates that dangerous voltages may be present or that surfaces may
have dangerous temperatures.
Safety instructions
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WARNING!
Splaying of strands can cause hazards!
Avoid splayed strands when wiring terminals with stranded conductors.
– Ferrules can be used to prevent splaying.
WARNING!
Removal/Insertion under power
Removal or insertion under power is permissible only if all conditions for hot
swapping are fullfilled.
Ä Chapter 11.2 “Replace an I/O module with hot swap” on page 91
The devices are not designed for removal or insertion under power when the
conditions for hot swap do not apply. Because of unforeseeable consequences,
it is not allowed to plug in or unplug devices with the power being ON.
Make sure that all voltage sources (supply and process voltage) are switched
off before you
– connect or disconnect any signal or terminal block
– remove, mount or replace a module.
Disconnecting any powered devices while they are energized in a hazardous
location could result in an electric arc, which could create an ignition source
resulting in fire or explosion.
Prior to proceeding, make sure that power is been disconnected and that the
area has been thoroughly checked to ensure that flammable materials are not
present.
The devices must not be opened when in operation. The same applies to the
network interfaces.
CAUTION!
Use only ABB approved lithium battery modules!
At the end of the battery’s lifetime, always replace it only with a genuine battery
module.
CAUTION!
Risk of explosion!
Do not open, re-charge or disassemble lithium batteries. Attempting to charge
lithium batteries will lead to overheating and can cause explosions.
Protect them from heat and fire and store them in a dry place.
Never short-circuit or operate lithium batteries with the polarities reversed. The
batteries are likely to overheat and explode. Avoid unintentional short circuiting
do not store batteries in metal containers and do not place them on metallic
surfaces. Escaping lithium is a health hazard.
Information on
batteries
Safety instructions
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Environment considerations
Recycle exhausted batteries. Dispose of batteries in an environmentally con-
scious manner in accordance with regulations issued by the local authorities.
Safety instructions
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3 System overview
3.1 AC500 PLC product family
The AC500 (Standard), AC500-eCo, AC500-S and AC500-XC scalable PLC ranges provide
solutions for small, medium and high-end applications. Our AC500 platform offers different
performance levels and is the ideal choice for high availability, extreme environments or safety
solutions. Our AC500 PLC platform offers interoperability and compatibility in hardware and
software from compact PLCs up to high-end and safety PLCs.
Due to the flexible combinations of AC500 devices and components, AC500 PLCs can be used
for controlling a wide variety of applications to fulfill your automation needs.
Features of AC500 PLCs
● Scalable and consistently expandable system
● Different performance classes of processor modules (CPUs) available
● Several fieldbusses available
● Parallel connection to several fieldbusses which can be combined arbitrarily
The AC500 product family consists of the product groups:
● AC500 (Standard):
AC500 standard PLCs offer a wide range of performance levels and scalability. The PLCs
are highly capable of communication and extension for flexible application.
● AC500-eCo:
AC500-eCo PLCs are cost-effective, high-performance compact PLCs that offer total inter-
operability with the core AC500 range and provide battery-free buffering of remanent data.
All I/O modules can be freely connected in a simple, stable and reliable manner.
● AC500-S:
AC500-S PLCs are designed for safety applications in factory, process or machine
automation.
● AC500-XC:
AC500 (Standard) and AC500-S provide devices with -XC extension as a product variant.
These variants operate according to their product group and can, in addition, be operated
under extreme conditions. AC500-XC PLCs can be used at high altitudes, extended oper-
ating temperature and in humid conditions. The devices also provids a high level of resist-
ance to vibration and corrosive gases. The AC500-XC series is consistent with standard
devices concerning the overall dimensions, the control function and the software compati-
bility.
The AC500 product family is characterized by functional modularity. As the complete AC500
product family shares the same hardware platform and programming software tool, the devices
of the AC500 product groups can be flexibly combined.
AC500 program-
mable logic con-
trollers (PLCs)
System overview
AC500 PLC product family
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S500 devices represent the I/O modules of the product group AC500 (Standard), whereas
S500-eCo devices represent the I/O modules of the product group AC500-eCo. Both S500 and
S500-eCo devices can be flexibly combined with devices of the AC500 product family.
3.2 AC500/S500 system structure
The AC500 product family provides a variety of modules and pluggable components for
expanding the capabilities of the processor module with additional I/Os or other communication
protocols. Depending on the features and functions of the processor module (CPU) compatible
components can be added to a complete AC500 PLC system.
01 Terminal base for processor module and 0 to 6 communication modules, with serial and
Ethernet interfaces
02 Communication module for, e.g., PROFIBUS, EtherCAT, and for support of safety solution
03 Processor module with integrated communication
04 I/O module, up to 10 I/O modules can be connected
05 Terminal unit for I/O modules, also for decentralized extension
Centralized I/O
extension
System overview
AC500/S500 system structure
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1 Terminal unit for communication interface modules
2 Communication interface module with up to 24 integrated I/Os
3 I/O bus
4 Terminal unit for I/O modules, with screw or spring connection
5 Terminal unit for hot swap of I/O modules to exchange of I/O modules while the system is
running
6 S500 I/O modules with up to 32 channels for analog and/or digital signals
7 Compact S500-eCo I/O modules with up to 16 channels for analog and/or digital signals
8 Removable terminal blocks
3.3 AC500-eCo/S500-eCo system structure
AC500-eCo/S500-eCo series is compatible with AC500/S500.
The compact AC500-eCo processor module can be used for small applications with the inte-
grated I/O channels.
The functionality of the processor modules can be extended with option boards, e.g., for addi-
tional I/O channels.
For larger applications, I/O modules can be connected centralized or decentralized.
Decentralized
I/O extension
System overview
AC500-eCo/S500-eCo system structure
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1 AC500-eCo processor module with option boards, different memory sizes, inputs and out-
puts available
2 S500-eCo I/O module, up to 10 I/O modules can be connected, also for decentralized
extension
3 Terminal blocks in different variants available
Processor modules with an I/O bus interface on the right side can be expanded by up to 10 I/O
modules to increase the number of the I/O channels.
Fig. 3: I/O modules (S500-eCo) directly connected to an AC500-eCo processor module
Up to 10 I/O modules can be connected remotely with the onboard Ethernet interface. Usually, a
Modbus/TCP communication interface module or a processor module is used for the decentral-
ized I/O extension.
Centralized I/O
extension
Decentralized
I/O extension
System overview
AC500-eCo/S500-eCo system structure
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Fig. 4: I/O modules (S500-eCo) connected to an AC500-eCo processor module via Modbus/TCP network, using a
Modbus/TCP communication interface module or a processor module as client.
3.4 AC500/S500: Short description hardware
AC500 processor modules contain the CPU with the core component of the PLC. The CPU is
connected with the user memory, input and output module, communication port and other units
via the system bus and performs tasks by means of system programs preset in the system
memory. The CPU adopts the function preset by the application program to command the PLC
for operation.
It has the following functions:
● To receive user programs and data entered
● To diagnose work faults of the power supply and PLC circuit as well as syntax errors in
programming
● To receive the state or data of the site via the input interface and save it into the shadow
register or data register
● To read the user programs in the memory one by one and execute them after interpretation
● To updating the state of the associated flag bits and the contents of the shadow register
according to the execution results and providing output control using the output unit.
Processor modules are available in different performance classes. Only one processor module
is required for a valid system architecture.
There are different types of processor module available that differ in the features and functions
they provide, e.g. performance, LED display etc.
If required, processor modules are also available with an integrated Ethernet communication
module (TCP/IP).
Processor
modules
Communication
modules
System overview
AC500/S500: Short description hardware
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AC500 communication modules are required for
● a connection to standard fieldbus systems and
● for integration into existing networks.
AC500 communication modules
● enable communication on different fieldbuses.
● are mounted on the left side of the processor module on the same terminal base.
● are directly powered via the internal communication module bus of the terminal base.
A separate voltage source is not required.
The terminal base is needed for mounting and connecting the processor module and the
communication modules. The modules are plugged on the terminal base.
Terminal bases
System overview
AC500/S500: Short description hardware
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On AC500-eCo processor modules and special AC500 (Standard) processor
modules the terminal base cannot be removed.
The I/O modules are the input/output unit which connects the PLC with the process. The PLC
can detect controlled object data via the input interface and the data is taken as the basis
for PLC control on the controlled object. In addition, the PLC sends processing results via the
output interface to the controlled object to execute the control.
External input equipment and output equipment needs various signal levels whereas the infor-
mation processed by the processor module in the PLC can only be the standard level. In
order to perform this conversion, the I/O interface generally uses optical isolation and filtering
to improve the interference immunity of the PLC. In addition, the I/O interface can generally
indicate the working state to facilitate maintenance.
The PLC provides multiple I/O interfaces for operation level and drive capability to users for
selection such as digital input, digital output, analog input, analog output, etc. I/O interfaces
of the PLC interpret the number of input/output signals as the number of PLC I/O points. The
number of I/O points is an important basis for PLC selection. If the system has insufficient I/O
points, it can be expanded via the I/O extension interface of the PLC.
The I/O modules for digital and/or analog inputs and outputs are available in different versions
and allow flexible use thanks to configurable channels.
The modules can be simply plugged onto a terminal unit for a centralized or decentralized I/O
extension via communication interface modules.
I/O modules and function modules are plugged on a terminal unit.
Terminal units enable simple prewiring without electronics and are available for 24 V DC and
120/230 V AC, optionally for spring or screw-type terminals.
I/O modules
Terminal units
System overview
AC500/S500: Short description hardware
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Communication interface modules are used to build decentralized I/O stations in decentralized
systems. They contain the fieldbus interface and a set of onboard I/O channels. Additional I/O
modules can be attached to build larger decentralized I/O stations. A communication interface
module is mounted on a terminal unit.
Function modules extend the PLC system to perform special task control. These modules often
provide independent components such as a CPU, system programs, memory and interfaces
connected with the PLC system bus.
Function modules are connected with the PLC via the I/O bus to exchange data and independ-
ently work under cooperative management of the PLC.
In the PLC, the memory is mainly used for saving system programs, user programs and work
data. There are two types of memory:
● Volatile memory:
All saved data will be lost after power failure of the memory but the memory can provide
a high access rate and unlimited programming cycles. Common volatile memories mainly
include SRAM and DRAM (including common memories such as SDRAM).
● Nonvolatile memory:
All saved data will not be lost after power failure of the memory, but the memory is subject
to a low read-write rate and limited rewrite cycles. Common nonvolatile memories mainly
include NORflash, NANDflash, EEPROM, memory card, etc.
AC500 PLCs store all user programs in the nonvolatile memory to protect them from power
failure. The programs are exported to the volatile memory during operation of the PLC to ensure
high-speed and efficient operation. If user program debugging is finished, the programs can be
fixed in the nonvolatile memory when they need no change. The work data is subject to frequent
change and access during the PLC operation. It is saved in the volatile memory to meet the
requirements for random access.
The work data memory of the PLC has the memory area for input and output relay, auxiliary
relay, timer, counter and other logic devices. The state of these devices depends on initial
setting and operation of the user programs. Some data maintains its existing state by using
built-in supercapacitors or backup batteries in the event of a power failure. The memory area for
data saving in the event of a power failure is called the data retention area.
The PLC is equipped with a switching power supply for the internal supply. In comparison with
an ordinary power supply, the switching power supply has a higher stability and a higher noise
immunity.
Some modules include a stabilized power supply for the supply of external sensors.
Communication
interface
modules
Function
modules
Memory
Power supply
System overview
AC500/S500: Short description hardware
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3.5 AC500-eCo/S500-eCo: Short description hardware
AC500-eCo processor modules contains the CPU with the core microprocessor of the PLC. It is
integrated with power supply, onboard I/Os and communication interface.
Functions:
● To download user programs
● To run the CPU
● To execute user programs in loops
● To monitor program input and output devices.
Processor modules are available in different performance classes and provide different numbers
of onboard I/Os.
Only one processor module is required for a valid system architecture.
AC500-eCo processor modules can be extended with option boards. Option boards provide
specific functionality. According to the processor module type, up to three option board slots
are available for extension. Each option board slot supports most existing types of option board
module. The option board modules provide the following functionality for processor module
extension:
● Serial interface RS232 (isolated) or RS485 (isolated or not isolated)
● Digital I/O channels extension (digital inputs, digital outputs, or mixed type)
● Analog I/O channels extension (analog inputs, analog outputs) for standard signal voltage or
current, but also temperature measurement with RTD/NTC or thermocouple sensors
● RTC real-time clock board for processor module PM5012 (other processor modules include
RTC functionality)
● Configuration address switch board for KNX protocol, for specific processor module
PM5072
Processor
modules
Option boards
System overview
AC500-eCo/S500-eCo: Short description hardware
2023/03/033ADR011074, 1, en_US20