GE VMIVME-1128 128 bit high-voltage digital input board

GE VMIVME-1128 128 bit high-voltage digital input board

Basic characteristics

Equipped with 128 bit high-voltage digital inputs, with 8 inputs per group, the monitoring voltage source or current sinking signal can be selected through jumper wires.

An open circuit can provide logic 0 or (jumper optional) logic 1.

Equipped with onboard built-in test (BIT) logic for fault detection and isolation, the front panel is equipped with a fault LED.

Users can choose the input voltage threshold (0.61 to 34V), with an input range of 0 to 66V (see Table 1).

Compliant with VMEbus specification Rev. C. 1, supports A24: A16: D32/D16/D08 (EO), from device address 39/3D: 29/2D.

Adopting a dual Eurocard shape (6U), equipped with high reliability DIN type I/O connectors, compatible with VMIC's intelligent I/O controllers (VMIVME-90xx series) and universal I/O controllers (VMIVME-9300 series).

Application area 

Automatic testing equipment, control system input, data acquisition system, digital input status monitoring, universal digital input, low maintenance application (BIT), status sensor monitoring, monitoring system, etc.

Functional feature details

Compliance and Appearance: Compliant with VMEbus specifications (ANSI/IEEE STD 1014-1987, IEC 821 and 297), with an appearance of 6U.

Input connector type: Use two 96 pin female connectors. For large-scale termination (IDC), it is recommended to use ERNI IDC DIN connectors and 0.033-inch 30 AWG ribbon cables; For discrete lines, Harting connectors and related accessories are recommended, and any connector requires a housing with a fixed lever. Harting housing is recommended.

I/O organization: 16 input ports, each 8-bit wide, with a total of 128 inputs, addressable to any address within the short monitoring and/or short non privileged or standard monitoring data and/or standard non privileged data I/O mapping.

Addressing scheme: 32 bytes can be individually addressed on 8-bit, 16 bit, or 32-bit boundaries. There are board ID register, control and status register (CSR), and 16 input bytes on the board. 20 jumpers determine the base address of the board, and another jumper is used for standard or short I/O access, providing the relative position address mapping of each register.

Input circuit characteristics: The input is single ended, with a high input impedance (15k). The threshold accuracy is usually 10% in the input range of 3 to 66V, and ± 200mV in the input range of 0V to 3V. Please refer to the relevant charts and Table 1 for threshold levels.

Ordering information

ABC=000 in the ordering options (reserved for future use).

Provided descriptions and I/O connector models corresponding to different connector styles, as well as models of Harting crimping tools, and also provided contact information.

Built in testing (BIT)

The design has built-in testing logic, supports board level diagnostics, and can test all onboard active components. Provide special output registers for testing input circuits, controlled by the test mode bit in CSR. The fault LED on the front panel lights up when powered on, and can be turned off through program control after successfully completing user-defined diagnostic software.

Physical/Environmental Characteristics

Temperature range: storage -20 to 85 ° C, operation 0 to 55 ° C.

Relative humidity range: Non condensing 20 to 80%.

Altitude: Working up to 10000 feet.

Cooling method: forced air convection.

Size: Dual Eurocard (6U), 160 × 233.35mm.

Power requirement: Typical value of 2.31A at 5V, can be connected at the front panel (P3 or P4) or P2, VMIC provides recommended VMIAC-0129 P2 power accessories.

Mean Time Between Failures (MTBF): 228636 hours (30 ° C Bellcore method).