K8000 - PC Interface Board KIT

The K8000 PC Interface Board SELF-ASSEMBLY electronic kit enables a computer to communicate with the outside world and be used in control applications and enable control functions to be carried out.

It excels in its simplicity of use and installation. The card is connected in a very simple way to the printer port (there is no need to open up the computer). Likewise there is no need to install an extra printer port, even if a printer is to be used. This can be connected to the card in the usual manner. Connection to the computer is optically isolated, so that damage to the computer from the card is not possible.

The card is controlled in a simple way using Turbo Pascal, QBasic, Visual Basic, Delphi, C++ (to use with MS-DOS, Win3.11, Win95, 98, ME, NT, XP, 2000). These procedures are pre-programmed and are provided along with a number of test and example programs on the diskette supplied.

The card itself has 16 optically isolated digital connections, which can be freely chosen as either inputs or outputs (e.g. 6 inputs and 10 outputs) according to how they are set up by the user. Furthermore, the card has 9 analogue outputs, of which one is high precision, and 4 analogue inputs. If this capacity is not sufficient for a particular application then up to 4 cards can be connected together (1 master and 3 slaves), such that an enormous potential exists. The card can be used with many of our other kits e.g. Relay Output Module (for K8006) KIT (K8027).

Features

optically isolated from computer
16 optically isolated digital connections
9 analogue outputs, of which one is high precision and 4 analogue inputs
a simple way of controlling using Turbo Pascal, Turbo C, Qbasic, Visual Basic
printer bypass connector on board
simple connection with printer port

Block Diagram

Specifications

digital outputs:
- optocoupler, open collector output: 50mA - max. 30VDC
digital inputs:
- optocoupler input: 5V/5mA, max. 20V/40mA
analogue outputs:
- 8 outputs DAC1 to DAC8, resolution: 64 steps
- minimum output voltage: 0.1V at 2mA
- maximum output voltage: 11.5V adjustable at 2mA
- resolution per step from 0.1 to 11.5V: 160mV +/- 90mV
- 1 precision output DA1, resolution: 256 steps
- minimum output voltage: 0V
- maximum output voltage: 4.5V adjustable at 0.5mA
- resolution per step from 0 to 4.5V: 17.5mV
analogue inputs:
- 4 analogue inputs AD1 to AD4, resolution: 256 steps
- minimum input voltage: 0V
- maximum input voltage: 5V
- input impedance: 50Mohm
- resolution: 19.5mV
communication protocol: I²Cbus
LED indication for each I/O
25 pin D series connector for computer
25 pin D series connector for printer
supply voltage: 230Vac
PCB dimensions: 237 x 133mm (9.3" x 5.2")
Product format: SELF-ASSEMBLY electronic kit (KT more)
WARNING! This product operates at potentially lethal mains voltage. Construction, installation, testing and commissioning should only be attempted by competent persons, or under supervision of someone fully experienced in this field. Many areas of the assembly (including heatsinks) may operate at mains voltage. It must be fitted into a suitable isolating enclosure to avoid injury or death. This product is not suitable for children. more