Description
1. Unboxing & Physical Snapshot
- Model & Brand: Allen-Bradley / Rockwell Automation PLC-5 — Backup Communication Module (
1785-BEM). - Physical Dimensions: Approximately 200mm x 400mm x 200mm (standard modular rack-insert envelope).
- Estimated Shipping Weight: 2.0 kg (heavy industrial electronics grade with shock-mitigating foam packaging).
- What’s in the Box: Backup communication module card, front status indicator bezel, hardware jumper blocks, and manufacturer compliance insert.
2. Product Introduction
Architecture hook: Slotting directly into standard Allen-Bradley PLC-5 chassis backplane racks, this communication module orchestrates hot backup and processor fault-tolerant switching across legacy industrial control networks. The ruggedized circuit board layout handles intense industrial electromagnetic interference found near heavy plant switchgear.
Operating within critical continuous-process lines, the hardware coordinates primary and secondary processor handshakes. Plant reliability engineers depend on its dual-channel tracking capabilities to eliminate single points of failure, which is critical for avoiding unplanned downtime during critical production cycles.
3. Core Technical Specifications
| Parameter | Value |
| Backplane Current Draw | 1.5 A at 5V DC nominal |
| Communication Ports | Dedicated backup communication links and rack communication channels |
| Operating Temperature Range | 0°C to 60°C ambient cabinet conditions |
| Chassis Compatibility | PLC-5/15, PLC-5/25, PLC-5/40, PLC-5/60, and extended backup systems |
| Module Type | PLC-5 Backup Communication / Error Module |
| Enclosure Protection | Open-type backplane-mounted plug-in electronic hardware |
4. Global Compliance & Industry Certifications
- Regulatory Approvals: CE Mark, UL Listed for industrial control equipment, and CSA certification for hazardous or standard locations.
- Safety Directives: Conforms to applicable heavy industrial electromagnetic compatibility (EMC) standards and low-voltage electrical safety codes.
- Compliance Significance: The UL Listed certification guarantees that internal spacing and trace insulation properties prevent electrical breakdown under North American industrial power distribution parameters.
- Audit Note: Verify specific lot certifications with OEM documentation prior to final safety loop sign-off.
5. Long-Term Storage & Asset Preservation Guide
When storing legacy processor communication cards in warehouse inventory, prioritize electrostatic protection and moisture control. Keep the card sealed inside its original metalized anti-static (ESD) shielding bag together with active silica gel desiccant packs to prevent trace corrosion.
Maintain storage room relative humidity strictly below 60% to avoid micro-oxidation on the gold-plated backplane edge connectors. Inspect the board annually for any signs of physical wear or packaging compromise.
6. Physical Installation Prerequisites
- Convection Clearance: Leave at least 50mm of vertical spacing above and below the rack slot to permit passive airflow across adjacent PLC-5 processor modules.
- Grounding Requirements: Securely fasten the front-panel captive screws to the metallic backplane chassis to establish a low-impedance ground connection for high-frequency noise suppression.
- Handling Protocols: Always utilize a grounded wrist strap and ESD-safe workstation mats when inserting or extracting this circuit card to prevent electrostatic discharge damage to sensitive onboard integrated circuits.
7. Buyer’s FAQ (Logistics & Compliance Focus)
- Q: What Harmonized System (HS) Tariff Code applies to global customs entries for this module?
- A: Generally classified under HS code 8538.90 (Parts suitable for use solely or principally with automation control panels); coordinate exact rulings with your logistics broker.
- Q: Does this hardware component include pre-loaded firmware images?
- A: The card ships with baseline factory bootstrap firmware; application-specific configurations are handled via the main PLC-5 processor program memory during system initialization.
- Q: How does the Country of Origin (COO) documentation impact regional import taxes?
- A: Originating primarily from manufacturing hubs in the USA, the COO certificate determines eligibility for preferential trade agreements; request papers before dispatch.
- Q: What transit insurance guidelines protect this sensitive electronic asset?
- A: Secure full-value “All-Risk” shipping insurance with shock-watch indicator labels affixed to the exterior carton.
- A: Secure full-value “All-Risk” shipping insurance with shock-watch indicator labels affixed to the exterior carton.
