ControlLogix 5580 vs 5570

Allen Bradley has developed the ControlLogix controllers to provide an economic and efficient control solution for all those applications which need or might need several I/O points for operation, thus featuring scalability. It is made possible by allowing these controllers’ installation into an available slot of ControlLogix I/O chassis. Furthermore, several of these controllers can be installed into one chassis.  

This article is to provide a comparison insight into two of the controllers from this family – ControlLogix 5580 and ControlLogix 5570. Here, similarities and differences between these controllers are penned down alongside important features pertaining to hardware, communication, software, etc.  

Programming Software 

ControlLogix 5580 controller and ControlLogix 5570 controller use Studio 5000 as their programming software which provides them configuration and design environment making commissioning and system design easy, quick, and flexible. Through this programming software, the user is given the freedom to make program settings so that controller could be configured to load from installed nonvolatile memory upon powerup. As an alternative, the user can also trigger the controller manually to save configuration settings to nonvolatile memory or load previously saved settings from it at any time.

Anyhow, there exists a little difference between the programming environment of ControlLogix 5580 controllers and ControlLogix 5570 controllers. The Former one uses 28.00 or later application versions of Studio 5000 Logix Designer. The Latter one uses version 21 or a later version of the automation engineering and design environment of Studio 5000.

Memory

Different catalog numbers of ControlLogix 5580 controllers and ControlLogix 5570 controllers have different user memory. For ControlLogix 5580 controllers, this memory can range between 3 MB and 40 MB. For example, 1756-L81E from the 5580 controller series has a 3 MB memory size while 1756-L85E from the same series has a 40 MB memory size. On the other hand, ControlLogix 5570 controllers have user memory ranging between 4 and 32 MB. 

ControlLogix 5570 controllers have dedicated input/output (I/O) memory of 0.98MB. ControlLogix 5580 controllers do not have dedicated memory for I/O as they allocate memory according to the need.  

Apart from discussed user memory, these controllers are capable of supporting SD (Secure Digital) cards to provide space as nonvolatile memory so data could be tagged on the controller or user program could be stored permanently. SD card memory can be brought to use upon power-up (provided SD card is unlocked) or the user can initiate the task manually.

5069 Compact I/O™ Supported 

5069 Compact I/O architecture contains a broad array of input & output modules for a variety of applications ranging from high-speed digital to process controls. The design employs Producer-Consumer functionality, which allows input and output statuses to be exchanged between many Logix5000 controllers. 

ControlLogix 5580 controller fully supports the 5069 compact I/O, whether it is connected directly or via an ethernet switch. This allows it to connect with multiple controllers in a single chassis. On the other hand, 5570 does not support 5069 compact I/O, that’s why it also has limited functionalities. 

Embedded Ethernet and Ethernet Performance 

ControlLogix 5580 controller has an embedded ethernet port that is capable of supporting maximum data rate (transmission) speed of 1000 Mbps (or 1Gbps); enabling high-speed communications, motion, and I/O control. It supports three rates of 10 Mbps/ 100 Mbps / 1000Mbps for transmitting data and adjusting the highest possible speed between the receiver and sender. However, its performance is optimal at 1000Mbps. 

ControlLogix 5580 controller supports class 0 and class 1 connections for I/O messages Ethernet protocol stack. It can transmit I/O messages at the rate of 20,000 packets per second (pps) with integrity and security, 40,000 pps with only integrity, and 128,000 packets per second without CIP security. It also supports explicit (HMI/MSG) messages for class 3 connection type with Ethernet protocol stack. It can transmit explicit messages with the rate of 900 messages per second with integrity, and security, 1500 messages per second with only integrity and 2,000 messages per second without CIP security. 

ControlLogix 5570 controller does not support these features as it has no embedded Ethernet.  

Integrated Motion Features

Both ControlLogix 5580 controllers and ControlLogix 5570 controllers support features of integrated motion. The former one supports 256 motion axes that can be any combination of the axis types supported by this family. The latter one offers 128 motion axes that are also the fusion of the motion axis supported by the 5570 controller family.

Supported Motion Axis types 

ControlLogix 5580 controllers support CIP (common industrial protocol) axis, Virtual axis (usually a master axis), position loop drives axis, and Consumed axis. Besides these, ControlLogix 5570 controller supports some additional axis including the generic axis, servo axis, and servo drive axis. 

In both families, all axes can be added to a single Motion Group, and also any combination of axis can be assigned to separate axis upgrade schedules. 

Supported Interfaces for Integrated Motion 

For ControlLogix 5570 controller, Integrated Motion axes can be associated with any acceptable drive, regardless of whether the communications connection to the drive is via the SERCOSE interface, EtherNet/IP network or Analog options. Analog options include LDT input, SSI input, and encoder input. 

ControlLogix 5580 controller supports the EtherNet/IP network motion. However, Analog or SERCOS motion is not supported by the whole ControlLogix 5580 controller family. Only ControlLogix 5580 controllers that have application version 31.00 or later of Studio 5000 Logix Designer can support SERCOSE and Analog Motion. 

Motion Rate 

The ControlLogix 5580 controller and ControlLogix 5570 controller can support 19 axes/ms and 8 axes/ms over the backplane, respectively. The former one supports 32 axes/ms over the EtherNet/IP port If the embedded EtherNet port is set to 1Gbps, and the latter one does not own this feature. 

To achieve a high-performance in motion system, Rockwell Automation recommends using a built-in EtherNet Port at the rate of 1Gbps. 

Communication and Connection Features 

Built-in communication ports: 

ControlLogix 5570 controllers have only 1 built-in communication port which is a universal serial bus (USB) port. This port is used for only temporary programming objectives, firmware updates, configuration, and online edits is of type 2.0 and offers a maximum speed of 12 Mbps.

ControlLogix 5580 controllers have two built-in communication ports. One is a USB port that offers functionalities similar to a USB port of the ControlLogix 5570 controller. The other one is an embedded Ethernet port that has performance rates of 10/100/1000Mbps.

Communication options: 

ControlLogix 5570 controllers and ControlLogix 5580 controllers support the following communication modules:

EtherNet/IP: By stacking the Common Industrial Protocol (CIP) onto the standard Internet protocols including TCP or UDP, the EtherNet/IP network provides a comprehensive platform of controlling, configuring, and data-gathering functions. This mix of these widely accepted standards offers the necessary capabilities to allow information data sharing and control applications. This network also supports the application features such as time synchronization, integrated motion, etc.

ControlNet: It is a control network in real-time and transports time-critical I/O data, interlocking data, and messaging info at high speeds. This involves uploading and downloading application and configuration data via a single physical-media link.

The ControlNet network is very predictable and repeatable, and it is unaffected by device connections and disconnections from the network. As a result of this quality, real-time performance is consistent, synced, and coordinated.

DeviceNet: It employs the Common Industrial Protocol (CIP) to offer the configuring, controlling, and data gathering features for industrial equipment. It uses the tried-and-true Controller Area Network (CAN) technology that reduces the installation costs, setup time, and pricey downtime.

A DeviceNet network allows you to access the information in your devices by direct connection to plant-floor controllers rather than hardwiring each and every device into an I/O unit.

Data Highway Plus: It allows information to be exchanged between ControlLogix controllers, PLC and SLC controllers, and ControlLogix controllers and SLC or PLC. It also allows for plant-wide & cellular-level data exchange.

You may connect up to 32 stations to a single DH+ link. Channel A is capable of speeds of 57.6 Kilobits per second (Kbps), 115.2 Kbps, and 230.4 Kbps. Whereas channel B is capable of 57.6 Kbps and 115.2 Kbps.

Remote I/O: Three module options are available for remote I/O communication. 1756-RIO works RIO adapter and scanner, schedules connections to update controller data, and allows 32 block transfers or 32 logical rack connections. 1756-RHIO works as an RIO scanner, allows 16 block transfers or 32 rack connection, offers to distribute I/O control, and develop connection among I/O adapters and controllers. 1756-DHRIOXT offer the same functions as the 1756-RHIO module and offers the additional feature of operating in adverse environments.

SynchLink: It is an optical fiber communication link that enables ControlLogix controllers to implement distributed motion & drive systems.

SynchLink must be implemented with a standard control network, including ControlNet /Ethernet/IP. A standardized network is employed for common control interlocking and diagnostic data flow through the system. SynchLink is not a conventional control network as it only broadcasts the data. figuration and online edits are of type 2.0 and offer a maximum speed of 12 Mbps.

Network Nodes and Controller Connections 

ControlLogix 5580 controllers with firmware version 30 or later can support 100 to 300 Ethernet/IP nodes. For example, 1756-L81E from this series can support a maximum of 100 nodes, 1756-L82E supports 175 nodes, 1756-L83E and 1756-L84E allow to include 250 nodes max. Nodes count is directly equal to the total number of allowed controller connections.

However, ControlLogix 5570 controllers do not support Ethernet/IP nodes as these controllers do not embed EtherNet. These controllers (1756-L7x and 1756-L7xS), however, support 500 controllers’ connections.

Network Connections: 

ControlLogix 5570 controllers and ControlLogix 5580 controllers support a different number of network connections depending on the network module. These modules are located in the local chassis.

ControlNet Modules 1756-CN2/A, 1756-CNB/D, 1756-CNB/E, and 1756-CN2/B, for ControlLogix 5570 controller family and ControlLogix 5580 controller family, allow 100, 40, 40, and 128 network connections, respectively. In both ControlLogix 5580 and 5570 controller families, EtherNet/IP modules 1756-EN2x and 1756-ENBT support 256 and 128 network connections, respectively.

However, ControlLogix 5580 controller family also supports network connections on embedded Ethernet ports. The supported network connections count is equal to the node’s capacity as mentioned in the previous head.

Controller Redundancy:  

ControlLogix 5570 controllers fully support the controller redundancy. ControlLogix 5570 controllers allow up to 7 EtherNet/IP or ControlNet communication modules featuring any combination. 

Redundancy is only supported by ControlLogix 5580 controllers when used with the Studio 5000 Logix Designer application, edition 33 or higher. They can allow up to seven EtherNet/IP connectivity modules. 

Communication Throughput

ControlLogix 5580 controllers run user applications and communications asynchronously. As application code and communication tasks run on different cores.

However, in ControlLogix 5570 controllers both application code and communication tasks are on the same main core.

Electrical Specifications 

Energy Storage Module: 

ControlLogix 5580 controller series has a non-removable energy storage module. ControlLogix 5570 controllers support both removable and non-removable energy storage modules.

1756-ESMCAP and 1756-ESMNSE are removable capacitor energy storage modules and 1756-ESMNRM is a non-removable capacitor energy storage module for ControlLogix 5570 controllers. The 1756-ESMNRM module protects the controller by blocking USB connections and SD card use indefinitely. It adds an extra layer of protection to your application.

Current, Voltage and Power Ratings: 

ControlLogix 5580 controllers and ControlLogix 5570 controllers draw 5.0 milliamperes current at 1.2 volts DC (direct current) voltage.  However, ControlLogix 5580 controllers and ControlLogix 5570 controllers draw 1.20 amperes and 800 milliamperes current at 5.1 Volts DC, respectively.  

ControlLogix 5580 controllers dissipate more power than ControlLogix 5570 controllers. ControlLogix 5580 controllers has rated power and thermal dissipation values of 6.2 watts and 21.2 BTU/hr. ControlLogix 5570 controllers feature 2.5 watts of power dissipation and 8.5 BTU/hr of thermal dissipation. 

Display and Indicators

Status Display 

ControlLogix 5580 controllers and ControlLogix 5570 controllers have 4 characters displayed on their front plate to inform the users about project status, firmware revision, energy storage status, and major faults of the controller. However, the ControlLogix 5580 controllers display has more updates message range than ControlLogix 5570 controllers. Such EtherNet Port status messages are only provided in ControlLogic 5580 controllers.

Status Indicators 

ControlLogix 5580 controllers and ControlLogix 5570 controllers offer the same status LED indicators as mentioned below.

Indicator	Goal
RUN	Displays the controller’s current mode
FORCE	Inform Whether I/O forces are turned on controller or not
SD	Indicated whether SD card is being used or not
OK	Indicate the controller’s state

EtherNet/IP Indicators

ControlLogix 5580 controllers has additional LED indicators for the embedded EtherNet/IP port. They are present to indicate the communications activity and state of the port. 

Reset Button

ControlLogix 5580 controllers offer the additional functionality of the reset button. To keep the IP address of the controller and clear the memory along with the application program, a stage 1 reset is available. A stage 2 reset is used to delete all network settings and return the controller to factory settings (out-of-box), including the firmware. ControlLogix 5570 controllers do not have this feature.

Physical Dimensions

ControlLogix 5580 controller weighs around 0.394 kilograms and has size of 5.50 inches x 5.717 inches x 1.360 inches (length x height x width).  

ControlLogix 5570 controller weighs about 0.25 kilograms and spans 5.627 inches in length, 5.717 inches in height and 1.360 inches in width.

Environmental Specifications  

ControlLogix 5580 controllers have a non-operating temperature range of -40 to 85 degrees Celsius, operating temperature range 0 to 60 degrees Celsius for chassis series C and 0 to 50 degrees Celsius for chassis series B. ControlLogix 5570 controllers have the same non-operating temperature range as ControlLogix 5570 controllers, but operating temperature ranges from 0 to 60 degrees Celsius.

ControlLogix 5580 controllers and ControlLogix 5570 controllers have IEC 61000-4-2 ESD immunity with 6 kV of contact discharges and 8 kV of air discharges. ControlLogix 5580 controllers and ControlLogix 5570 controllers offer IEC 61000-4-3 Radiated RF immunity.

However, only ControlLogix 5580 controllers have conducted RF immunity of 10 Volts rms (root mean square value) with 1 kHz (kilohertz) sinewave, EFT/B immunity of ±2 kV on Ethernet ports at 5 kHz, and surge transient immunity of ±2 kV line to earth on Ethernet ports as per IEC 61000-4-6, IEC 61000-4-3 and IEC 61000-4-4 standard, respectively.

This entry was posted on February 7th, 2022 and is filed under Allen-Bradley, Hardware Comparison, Uncategorized. Both comments and pings are currently closed.