Characteristic of the Data-Acquisition System
The following features characterize the data-acquisition system:
Simple Data Leads
- high reliability
- simple extendibility
- low cost
Stable data transfer protocol
- stable and reliable bus function with several controllers and many devices
- immunity of the data transfer against external interference fields
Scalability and Flexibility
- up to 16 data-acquisition boxes with a maximum of 15 measurement cards each can be connected to a single data lead
- modules with identical bus addresses can be present in one measurement system; their usage is not restricted in any way and no address configuration is required
Long Data Leads
- connections between the control computer and the data-acquisition box or between several data-acquisition boxes can extend over large distances
- one data lead of 50-m length can be used without any performance losses
Usage of Optoisolators
- direct galvanic isolation of the modules without any additional control circuit
- no interference by ground loops
- minimization of interference signals
- control and data acquisition of modules attached to high potentials
Own Time Base
- precise and synchronous function of the digital measurement cards
(the digital measurement cards represent a complete hardware solution; their function is independent of further data transfer via the system bus and of other system activities)
- possibility of an external synchronization by a frequency normal
Expandability by the Customer