The PCE984485 CPU module drives processing tasks for Schneider 984 series programmable controllers. This central unit executes ladder logic, manages I/O scanning, and coordinates communication across the backplane. Engineers depend on it for reliable control in legacy industrial installations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | CPU Module |
| Compatibility | Schneider 984 Series PLC Systems |
| Processor | 16-Bit Microprocessor |
| Program Memory | 64 KB RAM, Expandable |
| Interface | Backplane Bus, Modbus RS-485 Port |
| Dimensions | 250 mm x 40 mm x 180 mm |
| Weight | Approximately 0.90 kg |
| Component Count | 48 Active Electronic Components |
| Energy Storage | 3.6 V Lithium Backup Battery |
| Power Consumption | 5 VDC at 1.4 A |
| Operating Temperature | 0°C to 60°C |
| Relative Humidity | 5% to 95%, Non-Condensing |
Processing and Memory Architecture
The module runs a 16-bit microprocessor with 64 KB of onboard RAM. Therefore, it handles complex logic programs and data registers efficiently. Furthermore, memory expansion options support larger application requirements. Consequently, one unit covers a wide range of control duties.
Communication and Interface
An RS-485 port supports Modbus protocol for networked data exchange. Moreover, the backplane bus links the PCE984485 to local I/O modules. As a result, scan cycles stay fast and deterministic across the rack.
Power and Backup
The unit draws 5 VDC at 1.4 A from the system power supply. Additionally, a 3.6 V lithium battery preserves program memory during outages. Consequently, technicians avoid reloading logic after brief interruptions.
Installation Notes
Operators insert the module into a standard 984 rack slot for quick setup. The unit occupies one single-width position, conserving chassis space. However, users should confirm firmware revision before commissioning the system.
Details
| Weight | 0.15 kg |
|---|---|
| Dimensions | 110 × 72 × 38 mm |
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