Product Introduction

The VMIVME-4140 Analog Output Board provides 32 high quality analog output channels with 12-bit resolution, capable of sourcing or sinking 10 mA at ±10 V.

Each output has a dedicated D/A converter (DAC).

The analog outputs can be disconnected from the field wiring for off-line testing. Calibration and self-test are initiated by a VMEbus system reset or by executing a software command.

During calibration, a table of offset and gain coefficients is compiled and stored in RAM. Each of the 32 channels configured in six output voltage ranges has an associated offset and gain.

Self-Test: A self-test is automatically run after a system reset.

The self-test register indicates success or failure and can indicate which channel failed.

Front Panel Status LED: The LED turns on after a system reset. The LED turns off after a successful self-test and auto-calibration. The LED can also be turned on or off under software control.

Features

- 32 analog output channels

- 10mA maximum output current per channel

- One 12-bit D/A converter (DAC) per output channel

- 0.8Ω output impedance

- Random update (non-scanning)

- Software or external synchronous update of double-buffered outputs

- Single reference potentiometer - no additional manual calibration required

- Auto-calibration initiated by reset or software command

- Unipolar (0 to +10V, 0 to +5V, 0 to +2.5V) or bipolar (±2.5, ±5, and ±10V) software selectable

- Discrete wire or heavily terminated cables

- Self-test

- Extensive on-board diagnostic test capabilities

- Outputs can be disconnected from the field for offline operation

- PMC expansion slot

- Self-test

- Front panel status LEDs

- Front panel analog output connector

- Front panel reference voltage access

- Applications

- Data Acquisition System

- Control Systems

- Precision Analog Stimulus

- Automatic Test Equipment (ATE)

Front Panel Reference Voltage Access: An isolated BNC connector on the front panel allows access to the internal reference voltage. Reference voltage adjustments are made on the front panel.

Calibration: When auto-calibration is initiated by system reset or software command, the embedded DSP loads the calibration output value into each output DAC and then reads it back to the DSP via the 16-bit ADC.

This process is repeated until a sufficient number of calibration points are measured. Correction tables consisting of offset and gain corrections for 32 outputs in six voltage ranges are compiled and stored in RAM.

These correction coefficients are called every time an output is changed.

System Reset: After a system reset, all outputs are in offline mode, all control registers are in default states, self-test is initiated, and auto-calibration is initiated.

Board Address: The VMEbus base address is set by . One Jumper for Each Address Addresses A31 through A7 each have one jumper;

The board occupies 128 consecutive bytes of address space.

VMEbus Compliant: Address modifier bits are selected and decoded via jumpers to support non-privileged, supervisory, and non-privileged or supervisory board access.

Output Data Transfer: Output data is stored in 32 16-bit registers. The board can be configured via software to accept binary or offset binary data.

Output changes can be initiated via register access, but the outputs are double buffered, which allows all channels to be updated synchronously via software or external triggers.

Model Number: VMIVME-4140 Made in: USA Chipset: Advanced GE Microcontroller Operating Temperature Range: -40"C to +85"C Power Consumption: 15W (max) Input Voltage Range: 12V DC Dimensions (W x H x D): 178mm x 101mm x 51mm Connectivity: RS-232, USB 2.0, Ethernet Certifications: [ E L The GE VMIVME-4140 board is designed for harsh industrial environments, ensuring robust performance even under extreme conditions. Its compact design allows for seamless integration into a wide range of system architectures. Equipped with state-of-the-art technology, this board offers unparalleled precision in signal processing, making it ideal for applications requiring high accuracy and reliability. Designed with durability in mind, the board is made from high-quality materials to withstand the rigors of industrial use, ensuring a long lifespan with low maintenance requirements. The GE VMIVME-4140 circuit board features versatile communication interfaces that seamlessly connect to other components within the control system, enabling efficient data exchange and enhanced system functionality. User-friendly and easy to install, our circuit boards come with comprehensive documentation and support resources for quick setup and smooth operation, minimizing downtime and maximizing productivity. The GE-FANUC VMIVME-4140-000000 circuit board is a high-performance, versatile component designed for integration into industrial control systems. It is designed for applications that require precise analog output control to ensure reliable performance in a variety of industrial environments. The IO module has the following main functions Input function The IO module can receive input signals sent by external devices and convert them into digital or analog signals for use by computer systems or control systems. These input signals can come from a variety of sensors, such as temperature sensors, pressure sensors, photosensors, and so on. By receiving and parsing these input signals, the system can monitor and control the external environment in real time. Output function IO modules can convert the output signals generated by the computer system or control system into the form required by external devices. These output signals are usually used to control actuators such as motors, valves, lights, etc. By sending appropriate output signals to external devices, the control and operation of the external environment can be realized. Data acquisition and processing IO modules are able to obtain data from external devices and transmit them to the computer system or control system for further processing. This enables the system to obtain environmental data, status information and user input in real time, and make appropriate decisions or perform specific tasks based on these data. Communication interface IO modules are usually equipped with different types of communication interfaces, such as serial interfaces (RS232, RS485), Ethernet interfaces, CAN bus interfaces, etc. These interfaces enable IO modules to exchange data and communicate efficiently with computer systems or other external devices. Additional Information • Up to 1.26 GHz Pentium® III processor with 256 KB Advanced Transfer Cache   • Up to 512 MB PC-133 SDRAM using a single SODIMM   • Internal AGP SVGA controller with 4 MB display cache   • 133 MHz system bus via Intel® 815E chipset   • Dual Ethernet controllers supporting 10BaseT and 100BaseTX interfaces   • Optional PCI Dual-Channel Ultra160 SCSI   • Up to three (two with rear I/O support) PMC expansion sites (IEEE-P1386 General Purpose Mezzanine Card standard, 5 V)   • Up to 1 GB bootable Flash memory on secondary IDE (optional)   • Two 16-bit and two 32-bit programmable timers   • 32 KB nonvolatile SRAM   • Software selectable watchdog timer with reset capability   • Remote Ethernet boot   • Optional IDE hard drive   • Supports VME64 modes: A32/A24/D32/D16/D08(EO)/MBLT64/BLT32   • VMEbus interrupt handler, interrupter, and system controller   • Includes real-time endian conversion hardware for little-endian and big-endian data interfaces (Patent No. 6,032,212)   • Enhanced bus error handling   • Passive heat sink

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