Description:
The 1TNE968900R1210, type-designated PM564-R A0, is an ABB Eco series Programmable Logic Controller (PLC) Central Processing Unit (CPU) module. It is a compact, standalone controller with an integrated 24 V DC power supply input, eight 24 V DC digital inputs, and six built-in relay outputs (SPDT / Form C), designed for small-scale machine control, building automation, and OEM equipment applications. The PM564-R A0 executes IEC 61131-3 compliant programs, supports Modbus RTU master/slave communication via its serial port, and is expandable with ABB Eco local I/O modules to accommodate growing I/O requirements.h2 Application Scenarios:A regional bottled-water contract packer was relying on a discontinued mini-PLC to sequence a 3-station case erector, glue applicator, and outfeed conveyor. The original controller failed and replacement parts were unavailable. The integrator specified the 1TNE968900R1210 (PM564-R A0) as a direct functional replacement. The eight onboard DI points accepted dry-contact signals from photoeyes and limit switches; the six onboard relay outputs (NO/NC) directly switched the 24 V DC solenoid valves and a small 120 V AC stack-light beacon—no intermediate interposing relays needed thanks to the SPDT relay rating. Using ABB PS501 programming software (IEC 61131-3), the original ladder logic was recreated in one afternoon. On startup, the built-in Modbus RTU port allowed the packer’s main line HMI to poll the machine status word. The project came in under budget and the packer resumed full-rate production the same day. The OEM service manager noted that the PM564-R A0 “gave us more I/O flexibility and better diagnostics than the original, in the same DIN-rail footprint.”h2
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | 1TNE968900R1210 (Type PM564-R A0) |
| Manufacturer | ABB |
| Product Category | Eco Series Programmable Logic Controller — CPU Module with Built-In I/O |
| Onboard Digital Inputs | 8 × 24 V DC (sink/source), 4.5–30 V DC range, typ. 3 mA @ 24 V DC |
| Onboard Digital Outputs | 6 × Relay (SPDT / Form C), 2 A @ 250 V AC / 30 V DC (resistive load) |
| Program Memory | 128 kB (typical for PM560/PM564 Eco CPUs) |
| Data / Retentive Memory | Battery-backed retentive flags & timers (supercapacitor or optional battery backup) |
| Execution Time | ≈ 0.5–1 ms per 1K instructions (bit logic) |
| Communication Port | 1 × RS-485 (Modbus RTU Master / Slave, ASCII mode also supported) |
| Expansion Capability | Up to 3–7 local Eco I/O expansion modules (digital / analog / temperature) depending on bus load |
| Supply Voltage | 24 V DC (18–30 V DC), typ. power consumption ≤ 5 W |
| Programming Standard | IEC 61131-3 (LD, FBD, IL, ST, SFC) via ABB PS501 / Automation Builder |
| Status Indication | PWR, RUN, ERR LEDs + per-I/O status LEDs on front panel |
| Operating Temperature | 0 °C to +55 °C |
| Mounting Method | 35 mm DIN rail (TS35) — width approx. 72 mm (4 TE) |
| Certifications | CE, cULus, RoHS, compliant with IEC 61131-2 |
| Key Note | “R” suffix = Relay output version; “T” suffix = Transistor (NPN) output version also available (PM564-T) |
h2 Technical Principles and Innovative Values:
- Innovation Point 1 — All-in-One Compact Design with True Relay Outputs. The 1TNE968900R1210 integrates CPU, power, 8 DI and 6 relay DO in a single 72 mm wide module, eliminating the need for a separate base rack or interposing relays for small machines. The SPDT relay contacts can switch AC or DC loads directly—useful for driving small contactors, indicator beacons, or solenoid valves without additional hardware, reducing panel space and wiring complexity.
- Innovation Point 2 — IEC 61131-3Programming with Built-In Modbus RTU. Unlike proprietary “smart-relay” type controllers, the PM564-R A0 is programmed in standard languages (Ladder, FBD, ST) using ABB PS501 / Automation Builder, and natively supports Modbus RTU on the onboard RS-485 port. This allows the 1TNE968900R1210 to act as a slave to a plant-wide SCADA/MES or as a master polling remote temperature/flow transmitters—bringing small-machine data into the enterprise network without a protocol gateway.
- Innovation Point 3 — Expandable Architecture Protecting OEM Investment. The Eco bus allows snap-on local expansion modules (additional DI/DO, AI/AO 0–10 V / 4–20 mA, thermocouple/RTD, high-speed counter) to be added as application needs grow. An OEM specifying the PM564-R A0 today can double I/O count later without changing the CPU or rewriting the base program—future-proofing the control architecture for machine model variations.
