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Overview
Essential details：VMIVME-3112-000 High-Performance 16-bit Analog-to-Digital Converter Board
Products Description
The VMIVME-3122 (Figure 1 on page 15) is a high-resolution, 16-bit, 64-channel Analog Scanning and Digitizing Input board for VMEbus system applications. Dual-ported data memory, on-board timers, automatically controlled gain and a programmable bus interrupter enable the VMIVME-3122 to support extensive analog input traffic, with minimum involvement of the host processor.
Analog inputs are scanned and digitized sequentially. The digital values are stored in a dual port data buffer which can be accessed at any time from the VMEbus. The gain of each channel can be programmed individually, or can be set in software for a fixed gain that is common to all channels. Channel gain is software selectable as x1 or x10. A/D converter voltage ranges are jumper-selectable for ±2.5 V, ±5 V, ±10 V, 0 to 5 V and 0 to 10 V.
When a system or program reset occurs, the board initializes in the 64-channel autoscanning mode at a rate of 100 KHz and all channel gains are initialized to unity (x1). After a reset operation, the program can select the timed burst or triggered burst modes, and can modify the block size, buffer size, and channel gains as necessary.
The channel block is adjustable as 1, 8, 16, 32 or 64 channels, and the data buffer size can be selected from 16 to 1,024 data words in binary increments. When in standard performance mode, the board must be reprogrammed after reset for the 50 kHz scanning rate. A value of $00F7 must be written to relative address $0006.
Timed data bursts are controlled by an interval timer which can provide repetitive or single-shot burst intervals of up to 687 sec. A burst can consist of from 8 to 1,024-channel samples. A data ready flag is available at the middle or end of a scan, and an interrupt request can be generated simultaneously with the flag. The interrupt can also be initiated after a specific number of samples have been acquired
VMIVME-3112-000
The following general safety precautions must be observed during all phases of the operation, service, and repair of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture and intended use of this product.
VMIC assumes no liability for the customer’s failure to comply with these requirements.
Ground the System
To minimize shock hazard, the chassis and system cabinet must be connected to an electrical ground. A three-conductor AC power cable should be used. The power cable must either be plugged into an approved three-contact electrical outlet or used with a three-contact to two-contact adapter with the grounding wire (green) firmly connected to an electrical ground (safety ground) at the power outlet.
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VMIC VMIVME-3112-100 Scanning 12-Bit Analog-to-Digital Converter Module
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This VMIC / GE Fanuc VMIVME-3112-100 Scanning 12-Bit Analog-to-Digital Converter Module is new from surplus stock.
This unit ships in the original VMIC box and packaging.
VMIC VMIVME-3112-000 Scanning 12-Bit Analog-to-Digital Converter Module
VMIC VMIVME-3112-000 Scanning 12-Bit Analog-to-Digital Converter Module
GE Fanuc / VMIC VMIVME-3112-000 Scanning 12-Bit Analog-to-Digital Converter Module is used and in excellent condition.
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VMIC VMIVME-3112-100 Scanning 12-Bit Analog-to-Digital Converter Module
GE Fanuc / VMIC VMIVME-3112-100 Scanning 12-Bit Analog-to-Digital Converter Module is used and in excellent condition.
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