STW-ESX.3XM
The ESX.3xm is a robust and efficient control unit. In addition to the ESX.3xm (x = expandable, m = medium), an ESX.3xl (x = expandable, l = large) is also available, which approximately accords with a double ESX.3xm with regard to the construction size and the number of inputs/outputs.
Both control units are suitable for safety-oriented applications up to Performance Level PL d or Safety Integrity Level SIL 2, and are based on a common architectural concept: The robust aluminium die cast
housing with automotive plug-in connectors contains a fast 32-bit microcontroller with six MB Flash and four MB SRAM, four CAN interfaces, one serial interface, one buzzer and several LEDs.
Safety and diagnostic capability
A second, independent processor monitors the various system voltages and the program sequence. If required, this switches off all outputs via a second shut-down method or resets the main controller. Digital and analog feedback for almost all signal branches permit comprehensive diagnostics for the system including the inputs and outputs.
For safety-oriented applications, a safety layer API is available which permits the separation of safety and non-safety (feedback-free) application sections using a memory protection unit. This makes the effort required for recertification in case of changes to the (non-safety) application software substantially easier. The creation and updating of a safety-oriented application can be conveniently carried out using a safety manual and a diagnostics library.
Software
The application software for the ESX.3cs can be created highly efficiently either in “C”, CODESYS V3.5 IEC 61131 or logi.CAD. In the programming interface, numerous convenient functions such as current controllers and ramp functions for outputs or frequency averaging for inputs are integrated.
- Control specifically designed for use in harsh mobile applications
- Internally expandable with up to max., 3 expansion boards (standard variants or customer specific)
- Flexible programming in C, Codesys V3.5 IEC61131 or Matlab
- Suitable for safety-related applications up to SIL2 according to IEC 61508:2010 or PL d according to EN ISO 13849-1:2015
- 4 CAN interfaces and 1 RS 232 interface (basic version without expansion board)
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- Basic structure with 15 inputs and 8 outputs
- Up to 65 inputs/ outputs High switching capacity of up to 60A
