What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Engineered for basic standalone machine automation, the Omron CP1E-E30SDR-A serves as an entry-level controller within the CP1E Series CPU Unit family. This compact controller consolidates power supply, processing capability, and digital input/output interfaces into a single integrated housing, minimizing control panel footprint. Featuring an direct-connection USB 2.0 port, it allows for direct programming and debugging without the need for specialized external conversion adapters. With 30 integrated I/O points consisting of 18 DC inputs and 12 relay outputs, it provides a stable and highly reliable platform for cost-sensitive automation architectures operating on standard 100 to 240 VAC power.
| Specification Parameter | Value / Details |
|---|---|
| Manufacturer | Omron |
| Model Code | CP1E-E30SDR-A |
| Series Class | CP1E (Basic E-type S-renewal) |
| Supply Voltage | 100 to 240 VAC (50/60 Hz) |
| Operating Voltage Range | 85 to 264 VAC |
| Power Consumption | 15 VA max. (at 100 to 240 VAC) |
| Total Built-In I/O Capacity | 30 I/O points |
| Built-In Inputs | 18 points (24 VDC inputs) |
| Built-In Outputs | 12 points (Electromechanical relay outputs) |
| Programming Interface | USB 2.0 peripheral port (Type-B) |
| Memory Allocation | Program: 2k steps / Data: 2k words |
| Ambient Operating Temperature | 0 to 55 degC (no icing/condensation) |
| Unit Dimensions | 78 mm x 130 mm x 90 mm (L x W x H) |
| Net Unit Weight | 0.67 kg |
| Shipping Weight (Calculated) | 2.00 kg |
| Terminal Cluster | Terminal Label | Function Description |
|---|---|---|
| Top Power & Input Block | L1, L2/N | Main AC operational power supply input (100 to 240 VAC) |
| COM | Common terminal for internal 24 VDC inputs | |
| 0.00 to 1.05 | 18 Discrete DC input points split across word address spaces | |
| Bottom Output Block | COM (00 to 03) | Common contact points for output relay channels |
| 100.00 to 101.03 | 12 Mechanical relay output channels |
The CP1E-E30SDR-A is an "E-type" (Basic) model and cannot be expanded with CP1W option boards or standard CP1W expansion units. Systems that scale up to require additional I/O, RS-232C, RS-422, or RS-485 serial communications must transition to the "N-type" (Application) or "NA-type" CPU options, such as the CP1E-N30SDR-A, which natively support option boards and communication expansion modules.
Because this model is equipped with relay outputs, it is subject to mechanical wear and electrical contact erosion. Do not use the integrated relay outputs for high-frequency PID control loop outputs or high-speed pulse-train generation. If high-speed switching is necessary, either install external solid-state switches or select the transistor-output variant of this PLC family.
Always route the operational AC supply wiring (L1/L2) physically separate from the low-voltage DC input cables. It is critical to establish a solid ground connection at the protective earth (PE) terminal using a dedicated grounding conductor (resistance below 100 ohms) to minimize electric noise coupling from surrounding high-power switchgear or variable frequency drives (VFDs).
CRITICAL WARNING:
Completely isolate and lock out all upstream power sources before making electrical physical contact with the terminal screws. High-voltage hazard on L1 and L2 terminals. Verify all terminal safety shields are securely locked back in place after wiring is finalized and prior to main breaker activation.
Position the CPU unit on a standard 35 mm DIN rail, applying uniform pressure until the integral plastic mounting track clip engages with a distinct lock sound.
Affix mechanical DIN rail stop clips on either end of the PLC module to eliminate any potential physical shift during machine-induced vibration.
Terminate the input, output, and AC supply wiring using insulated M3 crimp ring or spade terminals, torque-tightening each terminal screw strictly to 0.5 N-m.
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| Country of origin |
Japan
|