B 5233-1/-2 / H51q-HS/HRS (0605)
122
Assembly kits to be used for the I/O level:
• B 9302 I/O subrack 4 units high, 19 inches
• B 9361 additional power supply, 5 VDC, 5 units high, 19 inches
The max. current must be 18 A (all I/O modules and the modules in the central rack), if
3 x F 7126 are used to keep the system in operation even one power supply module F 7126
has failed.
Values of the current requirement (+5 VDC) refer to the data sheets.
2 Modules
2.1 Central module F 8650X
The central module for safety related applications with TÜV certificate of the PES H51q-HS/
HRS contains the essential functions demonstrated in the block diagram of the central module:
Figure 2: Block diagram of the central module F 8650X
– two clock-synchronized microprocessors
– each microprocessor with an own memory, one processor operates with real data and pro-
gram and the other one with inverted data and program
– testable hardware comparer for all the external accesses of both
microprocessors, in case of a fault the watchdog will be set to the safe status and the sta-
tus of the processor is announced
– Flash-EPROMs of the program memory for the operating system and the user program
usable for min. 100,000 writing cycles
– Data memory in sRAM
Note Operating system/resource type in ELOP II
The assembly kit is usable since operating system BS41q/51q V7.0-8.
Resource type in ELOP II: H51qe-HS/H51qe-HRS.
Watchdog