07: Procontic 07 / AC31 series

CT: Controller with Transistor outputs

42: 40-series, compact, expandable, with analog inputs

07CT42 (24VDC): 1SBP260025R1001

CPU: 8-bit processor, 1000 instructions in 1.2ms

Memory: 34kB (Flash EPROM for program, non-volatile RAM for data)

Power: 24VDC (19.2–30V), ~5W consumption

Fixed I/O:

• Digital inputs: 8 isolated 24VDC

• Digital outputs: 6 transistors (24VDC/0.5A, PNP/NPN selectable)

• Analog inputs: 3 (±10V, 0–20mA, Pt100 selectable)

Expansion: Up to 6 I/O expansion units

• Max digital I/O: 104DI / 54DO

• Max analog I/O: 51AI / 12AO

Communication: 1×RS-232 (programming, Modbus RTU, ASCII)

Operating temperature: 0°C～+55°C

Protection: IP20

Mounting: DIN rail, single-slot

Dimensions/Weight: Approx. 120×80×40mm; ~300g

Front: Removable terminal block (power, 8DI/6DO, 3AI); LED status (PWR/RUN/FAULT)

Side: RS-232 communication port (DB9)

Back: Expansion bus connector (for I/O modules)

Compact all-in-one design with fast-response, long-life transistor outputs for high-frequency loads

3 built-in analog inputs for basic analog acquisition without expansion modules

Flexible expansion with up to 6 I/O modules for small-to-medium control

RS-232 with Modbus/ASCII for easy third-party and host connectivity

Integrated real-time clock for time stamping and scheduled tasks

Self-diagnostics with LED status for fast fault localization

Small control stations for ABB AC31/800xA/Advant OCS systems

Control of high-frequency devices (solenoid valves, contactors, small motors)

Standalone control for packaging machinery, electronic equipment, HVAC, water treatment

Sites requiring both analog (temperature, pressure, flow) and high-speed digital control

Isolate power before wiring; separate high/low-voltage cables

Periodically clean dust and tighten terminals

Keep environment dry/ventilated, away from VFDs/high-power motors

Troubleshoot: power → I/O wiring → communication → expansion modules; do not open casing