1TNE968900R1110 is PM573-T main CPU module of ABB AC500-eCo PLC series with fixed screw terminal structure. It is high-performance controller for medium and large automation projects, widely used in cabinet assembly and obsolete control system spare replacement.

1TNE is fixed part number prefix for ABB AC500 PLC series. 968900 corresponds to PM573 CPU hardware platform specification. Suffix R1110 represents factory standard fixed-terminal version with commercial model PM573-T.

Rated supply voltage DC24V, program memory 512kB, data memory 256kB. Onboard 8-channel digital input and 6-channel transistor digital output with single channel 0.5A rated load. DIN rail mounting, operating ambient temperature 0℃~+55℃, storage temperature -25℃~+70℃, protection grade IP20 for cabinet installation.

One integrated 10/100Mbps Ethernet port and one RS485 serial port supporting Modbus RTU, CS31 and ASCII communication protocols. Two expansion slots for optional communication modules, expandable with S500/S500-eCo remote I/O modules.

Execute user programs developed by Control Builder software with LD, ST, FBD, SFC programming languages. Collect field switch signals to realize equipment interlock, sequence control and closed-loop adjustment. Transmit runtime data and fault logs to upper HMI or DCS via Ethernet or serial bus, support SD card program backup and firmware upgrade, maximum expandable total I/O up to 1024 points.

Applied in medium-large sewage treatment projects, centralized pump and fan control, automated production lines and small process industry automation systems, matched with ABB low voltage components to form complete control solution.

Disconnect DC24V power before module disassembly or wiring modification. Perform quarterly maintenance to clear dust with dry compressed air and check terminal tightness regularly. Back up control program into SD card periodically. Check communication cable and field loop status prior to module replacement once communication fault occurs.