Digital Output Card
Digital Input Card
18/12-bit Analogue I/O Port
- 1 channel up to 18-bit differential input
- 8 channels 12-bit input
- 2 channels 12-bit output
- I2C bus
- Prototyping area – uncommitted array on 2.54mm pitch
This Analogue I/O Port allows the VM1 or VM2 controller to read 8 analogue inputs and generate 2 analogue outputs at 12 bit resolution, and also to read one analogue input at upto 18 bits.
Up to 2 of these Analogue I/O Ports may be connected to each I2C Bus, though in this case the 18-bit inputs are not easily usable.
The Analogue I/O Port will plug directly into the I2C connector on the Application Boards.
The kit includes an I2C cable and additional connectors.
Product code: 5624
Digital I/O Port
The Digital I/O Port allows the VM1 or VM2 controller to generate and detect 16 digital signals at logic levels. Up to 4 of these Digital I/O Ports may be connected to each I2C Bus. With alternative driver chips this can be increased to 8 Ports, a total of 128 digital I/O channels per I2C Bus.
The Digital I/O Port plugs directly into the I2C connector on the Application Boards.
The kit includes an I2C cable.
Product code: 1022
RS-232 Level Shifter
Converts between logic-level serial interfaces and industry standard RS-232 levels on a standard 9 pin D-type connector (plug). It may be useful for
- Developing designs where an RS232 serial port is needed for development but not in the final product.
- Adding more RS232 ports to a standard VM2 Application Board.
Product code: 5914
The VM2 controller can connect to a host of different devices, and many useful interfaces are built into the standard VM2 Application Boards. This page shows a range of interfaces that can extend the capabilities of the application boards.
These circuits may also be designed into a custom application board.
Industrial I/O Cards
The Industrial I/O cards provide an interface between the controller and industrial signal levels. Up to 16 cards may be daisy-chained on to each I2C bus to form a complete system. The cards plug directly into the I2C connector on any standard Application Board.
- I2C cable supplied
- Fully integrated with Venom language
- Pluggable screw terminals – ‘Combicon’
- Industry standard signal levels
- Up to 16 cards can be daisy chained together
- LED level indicators
- Isolated input and outputs
- Optional Long Distance I2C Interface (I2C Bus voltage must be set to 5V)
The digital and analogue interfaces described below have I/O at logic and low power signal levels, and are intended for prototyping new applications, low volume production and use inside an instrument case.
Also described are a WiFi adapter that plugs into an application board, and an RS-232 converter between the VM2’s logic level serial interfaces and RS-232 signalling levels.
*Extending to 128 Channels
The first 64 digital channels are available immediately and the second 64 are available by substituting alternative driver chips in place of those supplied in the card. This is a simple and inexpensive operation.