EP-2218 Emerson RSTi-EP Digital Output Module | New & Original Stock
Manufacturer: GE Fanuc
-
Part Number: EP-2218
Condition：New with Original Package
Product Type: Digital I/O Cards
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson EP-2218 RSTi-EP Digital Output Module
The Emerson EP-2218, also cataloged as the EP-2218 RSTi-EP 8-Channel Digital Output Module, operates as a dedicated hardware component for switching positive-logic digital loads within Emerson PACSystems RSTi-EP Remote I/O platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | EP-2218 |
| Brand | Emerson |
| Origin | USA |
| Weight | 1.4 kg |
| Dimensions | 11.5 mm slice form factor |
| Operating Temp | -25 to +60 deg C |
| Power Consumption | Isys: 8 mA; Iin: 35 mA + external load |
| System Compatibility | Emerson PACSystems RSTi-EP Remote I/O |
| Output Channels | 8 positive-logic (source) outputs |
| Output Rating | 0.5 A at 24 VDC per channel |
| Max Current per Module | 4 A continuous total |
| Switching Frequency | 1 kHz max (resistive loads) |
| Supply Voltage Range | 20.4 to 28.8 VDC |
| Network Integration | PROFINET RT, PROFIBUS, Modbus TCP, EtherCAT |
| System Redundancy | PROFINET System Redundancy (PNSR) compliant |
| System Certifications | CE, UL |
Backplane Bus Communication Velocity and Deterministic Networking
The module utilizes high-speed internal backplane bus communication velocity parameters to transmit discrete states directly to the parent network adapter. This architecture integrates with PROFINET / EtherNet/IP deterministic networks, enabling deterministic I/O density scaling up to 1024 points per network station. The internal firmware flash compatibility ensures that execution latencies match the 1 kHz switching profile. Hardware-driven diagnostic functions report channel-specific short circuits or wire breaks back to the central controller assembly via the fieldbus interface, maintaining status validation during active execution loops.
Frequently Asked Questions
Q: Does the EP-2218 support inductive load switching at its maximum 1 kHz frequency?
A: No. The 1 kHz maximum switching specification is verified strictly under pure resistive loads. Switching inductive loads requires external clamping diodes or suppression networks to protect the solid-state outputs from inductive voltage spikes.
Q: Can the 24 VDC output channels be configured to operate as negative-logic (sinking) outputs?
A: No. The internal hardware design uses fixed positive-logic source configurations, meaning it switches the positive DC rail directly to the connected load.
Q: What happens to the output channels if backplane communication is lost?
A: Upon loss of network communication, the module defaults to a pre-defined safe state (typically turning all outputs off), dictated by the head adapter's configuration parameters.
Field Installation Guidelines
- Power down the system backplane and disconnect all field power supplies before snapping the 11.5 mm slice onto the DIN rail assembly.
- Push the module slice vertically down onto the DIN rail until the metal grounding and locking clips engagement mechanism locks into position.
- Terminate all 24 VDC positive-logic field load wires at the corresponding terminal block points, checking that the total module load current does not cross the 4 A threshold.
- Keep standard physical separation distances between the low-voltage discrete signal lines and any neighboring high-voltage power wiring within the wire duct paths.