BOSCH D-64711 1070068007-102 Terminating Module

BOSCH D-64711 1070068007-102 — Stop the Clock on Your DC102/MK Bus Fault

Every hour a DC102/MK-based line sits idle costs real money. The D-64711 terminating module (order code 1070068007-102, assembly ref 1070081815-101) is the single passive component that holds your entire backplane bus together. When it fails — or goes missing after a rack swap — the CPU starts logging spurious communication errors, drives drop out of sync, and production stops. We stock this module in Xiamen and ship same-day via DHL/FedEx Express. Most destinations in Asia receive within 24–48 hours; Europe and North America within 3–5 business days.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

How to confirm the D-64711 is your fault source:

On a DC102/MK rack, bus termination faults rarely throw a clean, dedicated error code. Instead, you’ll see a cascade: intermittent F-codes on the CPU module, drives reporting communication timeout (typically E-xxx or Ax-xxx class on Rexroth platforms), or the entire rack cycling through a reset loop without a clear hardware trigger. If swapping individual I/O or drive modules doesn’t clear the fault, and the rack is otherwise fully seated, the terminating module is the next logical suspect — especially if the rack has been physically disturbed, a module was added to the end slot, or the unit has accumulated 5+ years of service.

Step-by-step replacement procedure:

1. Power down the rack completely. Do not hot-swap the terminating module — the bus must be de-energized before removal to avoid transient damage to adjacent modules.
2. Identify the end slot. The D-64711 occupies the last physical slot on the right side of the DC102/MK rack. It has no field wiring connections — only the backplane edge connector.
3. Release the locking tab and extract the module. Inspect the backplane connector pins on the old unit for corrosion, bent contacts, or burn marks. If pins are damaged, inspect the rack slot before inserting the replacement.
4. Insert the D-64711 replacement. Align the module guide rails and press firmly until the locking tab clicks. No torque tools required.
5. Power up and observe. The CPU should complete its bus scan within the normal initialization window (typically 3–8 seconds on DC102/MK). If communication faults persist after replacement, escalate to CPU module diagnostics — the termination was not the root cause.
6. No parameter entry required. Unlike CPU or I/O modules, the D-64711 carries no node address, no DIP switch configuration, and no firmware. Replacement is purely mechanical.

Common misdiagnosis scenarios:

• Rack expanded with an additional module and the terminator was moved but not re-seated correctly — always verify the terminator is in the physically last slot after any rack reconfiguration.
• Terminator confused with a blank filler panel — the D-64711 has an active backplane connector; a filler panel does not. Substituting a filler panel will not provide termination.
• Intermittent fault that clears on power cycle — classic sign of marginal bus termination impedance, often caused by a failing terminator rather than a completely dead one. Replace proactively rather than waiting for a hard failure.

Reliability in Harsh Conditions

The DC102/MK platform was designed for continuous-duty industrial environments, and the D-64711 terminating module reflects that design philosophy. Its passive termination network uses industrial-grade resistor arrays rated for extended temperature ranges, maintaining stable impedance characteristics across the full operating envelope of the rack — typically 0°C to +55°C ambient with short-term excursions to +70°C during thermal stress events.

Vibration resistance is inherent in the module’s construction: the backplane connector uses a high-retention-force edge contact system, and the PCB is conformally coated to resist moisture ingress in environments with relative humidity up to 95% non-condensing. This matters in foundry, press shop, and food processing environments where condensation cycles are routine.

Because the D-64711 contains no electrolytic capacitors, no fans, and no active switching components, it has no wear-out failure mode under normal operating conditions. The dominant failure mechanisms in field-returned units are mechanical: connector pin corrosion from prolonged exposure to sulfur-bearing atmospheres (common in rubber and chemical processing plants), and physical damage from improper module extraction. Units sourced from siemensplc.com are inspected for both failure modes before dispatch.

Global Express Logistics

Our warehouse is located in Xiamen, Fujian Province — one of China’s primary export hubs with direct access to DHL, FedEx, and UPS international express networks. Orders confirmed before 14:00 CST are processed for same-day dispatch. The logistics flow is as follows:

• Order confirmation → warehouse pick: within 2 hours of payment clearance
• ESD packaging and carton sealing: anti-static bag, foam insert, double-wall carton with fragile labeling
• Customs documentation: commercial invoice, packing list, and HS code 8537.10 declaration prepared for smooth clearance
• Carrier handoff: DHL Express or FedEx International Priority, depending on destination and urgency
• Tracking number issued: emailed within 4 hours of dispatch
• Estimated transit times: Southeast Asia 1–2 days | East Asia 1–3 days | Europe 3–5 days | North America 3–5 days | Middle East / Africa 4–7 days

For production-critical emergencies, contact us directly via WhatsApp for real-time stock confirmation and priority dispatch coordination. We have handled same-day air freight arrangements for customers facing extended line stoppages.

Contact Information

📧 Email: [email protected]
💬 WhatsApp: +86 18359268345
🌐 Web: siemensplc.com
📍 Location: Xiamen, China
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