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VersaNet Expansion Cards
A range of I/O modules is available to allow the system to be expanded up to a maximum of 192 inputs per node. Inputs can be any combination of Analogue, Digital or Pulse. There are special combination modules, useful for constructing small nodes and an Alarm output module. A number of the modules can be used in Low Power Mode for use on remote sites where mains power is not available.
IRDN301 Digital Output Module
This module provides eight digital outputs to external devices in the form of changeover relays, fitted with arc suppression networks.
Digital outputs change state based upon instructions received from the Communications Controller (IRDN300-xxx). These instructions may originate from a Digital Input at another node or via the Serial Data Highway for MODBUS applications. For exact configuration instructions.
IRDN302 Digital Input Module
The digital/pulse input module is used to collect eight channels of either steady state digital contacts or pulse counting inputs into a VersaNet2 node.
Each input channel may be configured to accept digital or pulse counting signals. A maximum of sixteen modules may be used in the same node giving a total of 128 inputs which are user configured. Each input channel consists of an opto-isolated DC supply for connection to the users volt free contacts or open collector transistor outputs. Transient suppression is provided on every input to protect against spikes and surges. The DC supply on these terminals is isolated from the VersaNet power supplies, but is common to all input channels.
IRDN307 Analogue Input Module
The analogue input module is used to collect up to four analogue readings into a node.
Each input has galvanic isolation offering 1000V isolation between input channels and earth. There is also additional transient suppression on each channel to protect against spikes and surges. The data may be in the form of DC voltage in the range of 0-5 V or a DC current of 0-20mA. This is switchable for each input channel individually. Analogue input values can be programmed to transmit on a time interval, % change, or combination of both, using the configuration port on the Communications Controller of the node.
IRDN308 Analogue Output Module
The Analogue Output module provides four channels of DC analogue output for connection to external devices.
All outputs have galvanic isolation offering 1,000V isolation between output channels and earth. There is also additional transient suppression on each channel to protect against spikes and surges. The signals are in the form of DC currents between 0-20mA. A DC voltage output may be obtained by adding external resistors to each channel. Up to sixteen of these modules may be used in a single VersaNet node.
IRDN310 Combination Output Module
The Combination Output Module provides four digital outputs through changeover relays and two channels of DC analogue data.
The analogues are 0-20mA DC current outputs and may be converted to DC voltage using external precision resistors. The analogue outputs have galvanic isolation offering 1,000V isolation between output channels and earth. There is also arc suppression across the relays of each digital channel. Only one of these modules may be used in a node.
IRDN311 Combination Input module
The Combination Input Module is used to collect up to four digital inputs and two analogue readings into a node.
Each digital input channel consists of an opto-isolated DC supply for connection to the users volt free contacts or open collector transistor outputs. The DC supply on these terminals is isolated from the VersaNet power supplies, but is common to all input channels. Transient suppression is provided on every input to protect against spikes and surges. Each analogue input has galvanic isolation offering 1,000V isolation between input channels and earth. The data may be in the form of DC voltage in the range of 0-5V or a DC current of 0-20mA. This is selectable for each input channel.
Analogue input values can be programmed to transmit on a time interval, % change, or combination of both using the configuration port on the Communications Controller of the node. Digital inputs can be programmed to transmit on time interval or change of state.
IRDN314 Alarm Output Module
The alarm output module allows an individual alarm output per node within the VersaNet2 network. The alarm occurs at the receiving end of the link being monitored. It is particularly useful in systems where the 'transmitter' is battery or solar powered.
The alarm output module has identical hardware to a digital output module IRDN301 but the software is different. In the no-alarm state the relays are energised.
IRDN209 Pulse Output Module
This module provides eight solid state outputs generating pulse signals. Up to sixteen of these modules may be used in a single Node.
The outputs are compatible with most types of pulse counters requiring an input pulse width of greater than 50mS. The user should use scalers at the pulse inputs to ensure the outputs react fast enough.
IRDN212 Low Power Pulse Input Module
This module is used to collect up to eight pulse counting inputs and has the added benefit of being able to be connected directly to a DC power source.
This module is used with a Communications Controller to form a Low Power Node for locations without mains power supplies. It can also be used in conjunction with an IRDN302 Low Power Input Module.
