GE VMIVME2170A 332-102170-110 Digital Output

Configured for high-density binary actuation and galvanic circuit protection within VMEbus platforms, the GE Fanuc VMIVME-2170A 332-102170-110 (VMIVME-2170A Digital Output Board) provides direct physical/electrical execution. It interfaces host-tier command words directly to 32 optically isolated field output paths natively at the hardware tier to maintain deterministic state switching parallel to master processor bus execution cycles.

Hardware Specifications

Deterministic Industrial Control & Drive Processing Architecture

• Backplane Bus Communication Velocity and Registration: The VMIVME-2170A reads system commands and executes state updates over parallel VMEbus lines. By configuring the 14-bit base address using the onboard DIP switches, the hardware processes 8-bit or 16-bit word transfers within microsecond task loops, avoiding software routing delays.
• I/O Density Scaling and Actuation Driver Parameters: The 32 output channels support drive capacities of either 2.5 mA or 300 mA. This dual-profile current architecture allows the board to step down to control high-impedance logic gates or scale up to drive inductive solenoids, relays, and indicators directly from the faceplate interface.
• Firmware Flash Compatibility and Surge Suppression: The board utilizes optical barriers to separate field circuits from the backplane logic, providing 1 kV sustained and 6 kV pulsed protection. This layout stops voltage spikes and common-mode transients from traveling backward through the output latches and freezing the master processing nodes.

Frequently Asked Questions

Q: What specific hardware behaviors manifest if a field-side inductive load generates a back-EMF spike that exceeds 30 VDC?

A: The board relies on its 6 kV pulsed optical isolation layer to limit transient voltage transfer to the logic side. While an extreme overvoltage event can damage the output driver transistors on that specific channel, the backplane interface remains isolated, preventing a bus error (BERR) cascade.

Q: Can this double Eurocard digital output module be hot-swapped while the VMEbus backplane is energized?

A: No. Standard VMEbus architectures do not support live insertion or removal. Extracting this module while power is applied can create transient voltage arcs on the backplane signal tracks, risking permanent damage to the onboard data latches and tripping master controller exceptions.