Product Description:

The EP-58MVP3C-M is a circuit board in Beckhoff's EP Digital Input Modules series. Within an automation cabinet, it functions as an interface that digitizes incoming 24 V switch or sensor states and routes them to a PC-based controller, allowing deterministic acquisition of machine status data. Its layout follows a standard ATX form factor so it can be installed alongside other Beckhoff EP modules, creating a modular platform for distributed I/O where high-density discrete inputs must be tied into supervisory controllers.

Measuring 220 x 260 mm, the board provides space for the VIA Apollo MVP3 AGP/PCIset chipset that coordinates memory, IDE, and peripheral buses. The front-side bus can be selected at 60/66/75/83/100 MHz, while the processor interface uses the legacy Socket 7 format with jumper-selectable multipliers from 2x through 5x. Vcore options from 2.1 V up to 3.2 V allow matching to low-power or higher-draw CPUs. A 512 KB Pipelined Burst SRAM cache reduces main-memory fetch cycles, and three 168-pin DIMM sockets accept up to 384 MB of SDRAM. Signal integrity across the backplane is maintained by a four-layer PCB that dedicates continuous planes to ground and power.

For local expansion, the module offers 3 ISA, 4 PCI, 1 AGP expansion slots, so proprietary Beckhoff adapter cards or standard PC boards can be added without an external chassis. Two IDE channels permit connection of up to four devices, and data bursts are supported in Ultra DMA/33 transfer mode for rapid retentive logging of input events. A single USB header simplifies service data transfers, while the always-on 5 V standby rail must supply 0.1 A to preserve BIOS settings during power-down. The board's IDE timing, cache, and FSB selections are all jumper configurable, allowing consistent latency tuning when the module is integrated into larger EtherCAT or fieldbus architectures.