The Stack Engineering Systems are configurable data logging systems that offer the very best combination of professional Data Logging hardware and software, packaged to be easy to use.

More about Stack's Modular Engineering Systems

Available as a Stand Alone system (ST895x) or as a dash expansion system (ST890x) - that can be connected onto any Stack Dash Display system - these systems can record up to 64 sensor channels (plus additional ecu channels) and offer the Professional Race Engineer unrivalled capability and flexibility.

These Data Logging systems are built up from a range of standard hardware modules that can be easily and quickly configured to suit any application using our DataPro Designer software. Because the systems are modular, additional capability can be simply added by purchasing additional modules.

DataPro Data Analysis Software provides comprehensive analysis capability, calculation of derived channels from recorded data, and enables the analysis and comparison of data between systems of various configurations and sizes.

Engineering Expansion Systems

The ST8900 Configurable Data Logging Systems are designed as expansion logging systems for Stack ST700 and ST800 Display Systems. The Data Logging system connects to the Display System via a CANBus network, and can record any or all of the parameters being monitored by the Display System.

Up to 40 additional sensors can be recorded using Input Expansion Modules (“E” Modules). Each “E” Module can record up to 8 universal inputs and a system can comprise of 1 to 5 “E” Modules.

Data is recorded using a Recorder module (“R” Module). The Recorder Module is available in a number of specifications to suit different Applications and requirements.

‘DS’ modules - Sensor Interface & Display Modules
All ‘Stand-alone’ Engineering Systems include a ‘DS’ (or a ‘DSR’) Module. This module has an engine RPM input, 2 pulse inputs for wheel speeds or our low frequency DSP sensors such as boost pressure, and 5 universal inputs (0-5Volts, 330 Ohms, 3K3 Ohms or any Stack DSP sensor). It also has a lap timer input and 3 switch inputs/outputs for recording control/status and driver alarms.

The ‘DS’ Module also has outputs to drive an optional configurable LCD driver display and up to 2 analog dials for RPM and Boost, together with a further 8 switch inputs/outputs for display control and driver alarms.

“E” Modules - Input Expansion Modules
A system can support up to 5 Input Expansion modules, which can be distributed anywhere on the vehicle, and connected together through Stack’s proprietary CANBus data network. By placing the Input Expansion modules in different parts of the vehicle close to the components to be monitored e.g. one at each corner, the sensor harness lengths are minimised and simplified.

Each Expansion module has 8 universal sensor inputs. Each input can be configured individually to accept any standard sensor or sensor interface from the Stack range, or to directly measure 0-5 volts, 0-333 Ohms inputs, or a pulse frequency up to 40kHz. Each input can be sampled at up to 200Hz.

When used with Stack’s range of ‘digital’ sensors and sensor interfaces, any sensor input can be configured to enable fast-changing parameters to be recorded slowly, by measuring the average parameter value throughout the sampling period, e.g. suspension movement with a maximum frequency response of 1kHz can be recorded at, say, 10Hz for pitch and roll measurement, to extend the recording time and reduce the memory usage.

“R” modules - Data Recording Modules
Depending on the configuration, the Recorder Module can record from 20 up to 128 channels of data through the Stack CANBus data network. These channels can originate either from the Stack dash system or from any “E” Module connected into the system.

The Recorder can be configured to record each channel individually from a sampling frequency of 1Hz up to between 50Hz and 200Hz (depending on the configuration of the “R” Module). The “R” Module can record up to a total of 8000 samples/sec.

The standard Recorder Module memory capacities are 2 MBytes, 4 Mbytes and 8 Mbytes (but can be expanded to up to 64 MBytes). The data is transferred from the Recorder Module to a PC via the 1Mbits/sec Stack CANBus network, using the PC parallel port.

‘ER’ & ‘DSR’ modules - Sensor Interface & Recorder Modules
The “ER” Module integrates full “E” Module functionality with data logging capability.
This module provides 0.5 Mbytes of solid state memory and records up to 20 channels at 50Hz sampling frequency per channel.

Although this module can record data from other “E” Modules it is most often used as a single module system.

Custom Engineering
Many of our customer's applications have individual and unique requirements. Stack offers a custom engineering capability to provide cost effective custom system solutions. The following are just some examples of custom solutions that we can offer - please contact us to discuss your requirements.

Control Capability

• Switched outputs that drive ancillary devices - eg. for switching on fans, changing torsion bar stiffness etc
• Real time display and alarm monitoring of derived channels - eg. to display rate of change of a parameter, or derive a new channel from other monitored channels
  

Communication

• Radio and cellular Telemetry - Real Time, Report based, Event based etc
• PC software for using host PC to automatically email data to remote monitoring station
• Gateway modules to support other communication standards - eg. R5485, R5232, J1850 etc
• Active Mode CAN Gateway Module - Enables the Stack system to be used to add messages to a host CANBUS network

Data storage and retrieval

• 64Mbytes non-volatile memory
• High speed local wireless LAN data retrieval - 50 Mbit/ sec @ up to 30 Metres range
• Removable memory card module - providing up to 500 Mbyte capacity
• Recording Strategies: Rolling barrell, event logging peak value logging level distribution counting, bin logging, rain flow recording

System capability

• Systems available to record more than the 256 standard channels - capacity dependant on sampling frequency requirements
• Systems available with increased sampling frequency - capability dependant on the input type and channel capacity
• Recorder Modules available that will record up to 100 individual runs with reduced maximum channel capacity

Sensor interfacing

• High input intensity DSP Interface Modules with direct CANbus connection - dedicated & multiple input options
• Non standard signal conditioning Interface Modules
  

Environmental

• Modifications to suit extreme environments - eg. to measure aircraft data in an un-pressurised high altitude environment