07: Procontic 07 / AC31 series

CR: Controller with I/O (central unit)

42: 40-series, compact, expandable version

Model & Part Numbers

07CR42-24VDC: 1SBP260023R1001

07CR42-120/230VAC: 1SBP260024R1001

Technical Specifications

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) or 120/230VAC; 5W/10W consumption

Fixed I/O:

• Digital inputs: 8 isolated 24VDC

• Digital outputs: 6 relays (250VAC/2A)

• 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; ~330g

Interface & Indicators

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)

Core Functions

Compact all-in-one design for independent logic control and data acquisition

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

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

Integrated real-time clock for time stamping and scheduled tasks

Self-diagnostics with LED status for fast fault localization

Application Scenarios

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

Standalone control for HVAC, water treatment, pump stations, packaging machinery

Remote signal acquisition and control with scattered field devices

Maintenance

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