HIMA F7553 Coupling Module

The input modules of the HIQuad H41X system safely record the values measured by sensors.Data is exchanged with the processor module via the I/O processing module. The measured values are cyclically queried by the processor module and processed by the user program. The user program's results are sent to the I/O processing module, which writes them to the output modules. The output modules thus control the field level, e.g., the actuators. During mono operation, the signal is forwarded by the processor module in slot 16 via system bus A. the example of an H41X mono system with system bus A. An additional extension rack can be connected to the system bus A. The extension rack is connected to the H41X base rack via the I/O processing module and the system bus A, see F-IOP 01 manual (HI 803 219 E).

If the system bus connection is interrupted in a mono system, all I/O modules located after the interruption point are no longer available. After the interruption point, all output modules enter the safety-related, de-energized state. As for the input modules, the failsafe initial values are processed in the respective processor module.