PM5052-R-ETH is an AC500-eCo V3 standard processor module that combines controller, Ethernet and onboard I/O functions in one compact CPU. The relay-output version is identified by current article 1SAP124100R0172.

Its onboard signal set includes twelve 24 V DC digital inputs, six relay outputs and two configurable 24 V DC digital channels. Three option-board positions provide the largest option-board capacity among the PM5012, PM5032 and PM5052 variants in this group.

Manufacturer	ABB
Product Family	AC500-eCo V3
Processor Type	Standard CPU
Model	PM5052-R-ETH
Current Article Number	1SAP124100R0172
Memory	4 MB
Supply Voltage	24 V DC
Digital Inputs	12 channels, 24 V DC
Digital Outputs	6 relay channels
Configurable Channels	2 digital input/output channels, 24 V DC
Ethernet Interfaces	1
Option-Board Slots	3
Memory Card Support	MC5102 micro memory card
Required Terminal Accessory	TA52xx terminal block set, ordered separately
Lifecycle	Revision 1 article is active

• Integrates the CPU, one Ethernet connection and a substantial onboard I/O set in one AC500-eCo V3 device.
• Uses six relay outputs for loads that require dry-contact switching within the documented relay ratings.
• Adds two configurable 24 V DC channels beyond the twelve fixed digital inputs.
• Accepts as many as three TA51xx option boards for selected communication or functional extensions.
• Provides status and I/O indication together with a RUN control and a micro memory card slot.
• Supports AC500-eCo V3 local I/O expansion over the processor-module I/O bus.

• Compact machine controllers that need Ethernet communication and mixed onboard digital I/O.
• Control panels where relay outputs are preferred for electrically separated switching tasks.
• Automation stations requiring up to three CPU-mounted option boards.
• Modernization of an installed PM5052-R-ETH while retaining the verified program and terminal assignment.
• Distributed equipment that combines local logic, hardwired signals and an Ethernet engineering connection.

• Use revision 1 article 1SAP124100R0172 for current planning; the earlier R0072 article is in the Classic phase.
• Revision 1 requires CPU and boot firmware V3.6.x or later and Automation Builder 2.6.0 or later.
• Upgrade older projects before fitting an R0172 processor into an installation engineered with Automation Builder earlier than 2.6.
• Archive the application, firmware level, Ethernet parameters, option-board list and complete I/O map before exchange.
• Order and verify the correct TA52xx terminal block set because pluggable terminal blocks are separate accessories.

Which current article number identifies PM5052-R-ETH revision 1?

The active revision 1 article number is 1SAP124100R0172.

How many relay outputs are onboard?

PM5052-R-ETH provides six onboard relay outputs.

How does PM5052-R-ETH differ from PM5032-R-ETH?

Both have twelve inputs and six relay outputs, but PM5052-R-ETH has 4 MB memory and three option-board slots instead of 2 MB and two slots.

Can an older R0072 application run on the R0172 hardware?

Yes, after the project is upgraded to Automation Builder 2.6.0 or later and the required V3.6.x-or-later firmware level is used.

Are the pluggable I/O terminals included with the CPU?

The applicable TA52xx terminal block set is a required accessory and is ordered separately.

What should be checked before replacing this CPU?

Confirm the full article revision, application backup, firmware, Ethernet settings, option boards, terminal set and channel wiring.