Nonstop safety for everyone who thinks ahead

ƒ Application software can be checked in real  scenarios prior to commissioning, leading to shorter  commissioning times 

ƒ Shorter commissioning times lead to an earlier  plant start up 

ƒ Application software can already be optimized prior  to start up, leading to a higher plant efficiency  already at start-up (instead of optimizing in the  running plant) 

ƒ Avoiding of plant trips by improved behaviour of  operators

Sophisticated mechanics 

For the best possible handling: 

ƒ Fully enclosed modules 

ƒ Replace module without disturbing I/O or power wiring  

ƒ All racks are panel mountable; the 15 slot is also available  for 19-inch rack installation 

ƒ Fully integrated and protected power distribution 

ƒ Two different field wiring options, i.e., direct wiring using  terminal strips or system cables on field termination  assemblies

Requirement based rack sizes 

ƒ Three available rack sizes: 10, 15 and 18 slots 

ƒ In case of using X-CPU 31, up to 4 slots can be used with  additional I/O or COM modules

Performance pays off 

HIMax is the most powerful safety platform ever invented.  Its unprecedented performance is based on high-performance components and smart system architectures. 

ƒ Cycle time of 50 ms with 1,000 I/Os  (split 50% analog/digital) 

ƒ Unlimited complex calculations 

ƒ Impact of calculation of 1,000 PIDs on cycle time: 10 ms 

ƒ Signal conditioning directly on I/O modules with no impact on CPU performance 

ƒ Up to 2,048 I/Os per cabinet 

ƒ A system with up to 12,800 I/Os 

ƒ Up to 200 I/Os in up to 16 racks per system  

ƒ 250 systems per network 

ƒ Multitasking: Set fixed scan times for dedicated  applications 

ƒ Sequence of event (SOE), 1 ms resolution quality 

Online expandability 

In case of expanding the update is written to a second memory  area, after which the system switches seamlessly to the update. This method of intelligent memory management ensures that  the controller is always operational regardless of whether it is mono or redundant. There is no limit to the number of times  a program can be reloaded during operation. Even operating  systems can be updated during operation. I/O modules, their associated connector boards, base plates  and remote components can also be added during operation.  The same applies to new base plates and remote components.  All can be modified without having to stop the plant. Online  expandability of hardware and software guarantees maximum  flexibility during the entire life cycle.

Optimizing plant efficiency, e.g., using C code 

New process optimization potential is opened up by integrating  mathematical and statistical models for dynamic process control  or by more frequent sampling of process values within the safety  system. Critical processes with continuously changing process  variable values can thus be run closer to the limit ranges. For  example: If the dynamic process value temperature in an  ethylene cracker can be kept 1 to 2 degree closer to the critical  limit, plant productivity increases considerably, while full process  safety and availability are maintained. 

Self education  

If the system diagnoses an internal fault, the module involved  can be replaced quickly during operation. Only a few moves  are required. If a processor module is swapped, the new module is automatically brought up to date with the currently operative modules.  The parameter setting and the user program are imported from the functional processor module and then loaded. 

“Self-education” has other benefits for the user:

ƒ Your inventory of spare parts will be smaller 

ƒ You do not have to search for correct software versions 

ƒ When replacing a processor module, you do not have to  connect a computer, which eliminates subsequent potential  fault causes.