ABB PM591-2ETH Processor Module · 4 MB / Dual Ethernet
ABB PM591-2ETH processor module
ABB PLC processor with dual Ethernet
ABB PM591-2ETH 4MB processor module
Place of Origin:
SWEDEN
Brand Name:
ABB
ABB PM591-2ETH processor module
,ABB PLC processor with dual Ethernet
,ABB PM591-2ETH 4MB processor module
ABB PM591-2ETH Processor Module · 4 MB / Dual Ethernet
AC500 processor module with 4 MB memory, two independent Ethernet interfaces, configurable RS-232/RS-485 communication, LCD display and eight function keys.
Technical Parameters
Core specifications are shown below; additional engineering data is available under the expandable section.
| Manufacturer | ABB |
| Part number | PM591-2ETH |
| Product type | Processor module |
| Memory | 4 MB |
| Ethernet | 10/100Base-TX, 2 independent interfaces, 2 × RJ45 |
| Serial interface | COM1, configurable RS-232 or RS-485 |
| Serial speed | 0.3 to 187.5 kB/s |
View additional technical parameters ＋
| Serial communication | Modbus master/slave, serial ASCII communication, CS31 master |
| Integrated Ethernet functions | Web server, SNTP and IEC 60870-5-104 |
| External communication modules | Up to 4 communication modules |
| Display / controls | LEDs, LCD display and 8 function keys |
| Timers | Unlimited |
| Counters | Unlimited |
| Program execution | Cyclic, time-controlled and multitasking |
| Programming languages | ST, IL, FBD, LD, SFC and CFC |
Dual Ethernet architecture
Two independent 10/100Base-TX interfaces provide the Ethernet connections described for the module. ABB also documents redundancy configurations using the two Ethernet interfaces.
RS-232 / RS-485 through COM1
COM1 can be configured for RS-232 or RS-485. ABB specifies Modbus master/slave, serial ASCII and CS31 master communication functions.
Check the AC500 terminal-base arrangement
ABB identifies TB523-2ETH for PM591-2ETH. Before installation or replacement, match the terminal base and project hardware configuration with the installed AC500 system.
AC500 control and communication
The module serves as an AC500 processor where Ethernet and serial communication are required within the control architecture.
When customers usually look for the part
Typical searches occur around processor faults, communication loss or unexpected controller stoppage. A processor or network failure can interrupt the associated control system and extend equipment downtime.
LED
Local status and diagnosis
LEDs, LCD display and eight function keys provide local status indication, RUN/STOP control and diagnostic access.
Need this part for a running system?
Send the exact requirement and the system details. We will work from the part number rather than guess at the configuration.
PM591-2ETH purchasing questions
Does PM591-2ETH have two Ethernet ports?
Yes. ABB specifies two independent 10/100Base-TX Ethernet interfaces with RJ45 connections.
What serial communication does PM591-2ETH support?
COM1 is configurable as RS-232 or RS-485 and supports Modbus master/slave, serial ASCII and CS31 master functions.
Can the two Ethernet interfaces be used for redundancy?
ABB documents redundancy configurations using the two Ethernet interfaces; the relevant network configuration must follow the ABB procedure.
Which terminal base is associated with PM591-2ETH?
ABB identifies TB523-2ETH for PM591-2ETH. Check the installed hardware and project configuration before ordering the terminal base.
What information should I send for a PM591-2ETH quotation?
Provide the exact Part Number, Quantity, Destination, Required Date and Machine/System Model.
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