The HIMA F7553 module is a coupling module included in the assembly kit B 9302, designed for the PES H51q system. Its primary functions and features include:
Watchdog Signal Monitoring: The front plate includes an LED (WD) that indicates the presence of a fail-safe watchdog signal.
IO Module Access Signal: A second LED (SEL) signals access to the IO modules of the associated IO subrack.
Watchdog Signal Switch: A shrouded switch (WD) allows the WD signal to be switched off, enabling the replacement of the coupling module F7553 without triggering a system emergency shutdown.
Coding Switches: The coding switches (S1.1 to S1.4) are used to set the numbers for the IO bus (cabinet) and subrack.
The coupling module monitors the 5 V supply of the IO subrack and transmits the corresponding status signal to the central module. Additionally, the module undergoes automatic testing during operation to ensure its functionality.
