ABB 1SAP121200R0071 PM556-TP-ETH is a 24 V DC Ethernet-equipped AC500-eCo programmable logic controller CPU. It executes the PLC application and connects onboard digital field signals with serial and network communication.
- 512 kB Flash EPROM program memory
- 8 digital inputs and 6 transistor outputs
- 1 onboard industrial Ethernet interface
- RS-485 COM1 and I/O-bus expansion for up to 10 I/O modules
The PM556-TP-ETH reads eight discrete input channels, processes the configured control program, and commands six transistor output circuits. It exchanges configured network data through onboard Ethernet while COM1 supports programming, Modbus master or slave, serial ASCII, or CS31 master operation. ABB lists the MC503, TA561-RTC, TA562-RS, TA569-RS-ISO and TA562-RS-RTC as usable accessories; verify network settings, loads, accessories and field wiring against current ABB documentation.
Important Notice: Confirm whether pluggable I/O terminal blocks, optional memory, clock and serial modules, manuals, software and other accessories are included in the quotation or stock description.
Apter Power 1SAP121200R0071 PM556-TP-ETH Manuals and Guides
Important Notice: These are two separate Apter Power documents independently prepared from manufacturer-published ABB information. Confirm the physical nameplate, current ABB documents, network plan, and installed-system requirements before configuration or installation. They do not replace official ABB manuals.
Networked compact machines
Executes PLC logic while exchanging configured controller data through onboard Ethernet
Fast discrete control
Reads eight digital field states and drives six transistor output circuits from a 24 V DC system
Serial and Ethernet integration
Combines onboard industrial Ethernet with RS-485 programming, Modbus, serial ASCII, or CS31 master communication
Expandable automation panels
Coordinates up to 10 additional I/O modules through the local I/O bus
Read the current ABB documentation, approved network plan and control-panel instructions before use. Verify 1SAP121200R0071 PM556-TP-ETH from the physical nameplate.
1
Power supply: Use 24 V DC within the ABB-published system limits and the specified extra-low-voltage source types
2
Temperature: 0 to +60 °C horizontally; 0 to +40 °C vertically with output load reduced to 50% per group
3
Transistor outputs: Verify each 24 V DC load, switching requirement and protective device against the current ABB wiring data
4
Ethernet: Apply only the network functions and settings defined in the approved ABB project and site network plan
5
Enclosure, COM1 and commissioning: Tighten terminal screws for IP20, keep RS-485 within -8 V to +12 V common-mode range, and confirm wiring, accessories, software and project compatibility
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