B 5230 / H51q-M (0605)
88
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 V DC) refer to the data sheets.
2 Modules
2.1 Central module F 8651X
The central module of the PES H51q-M contains the essential functions demonstrated in the
block diagram of the central module:
Figure 2: Block diagram of the central module F 8651X
– Microprocessor
– 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
– Dual Port RAM for fast memory access to the second central module (not used in the
H51q-M system)
– 2 interfaces RS 485 with galvanic isolation. Transmission rate: max. 57600 bps
– 4digit diagnostic display and 2 LEDs for information out of the system, I/O level and user
program
– Power supply monitoring
– I/O bus logic for the connection to the input/output modules
– Hardware clock, battery buffered
– Watchdog
– Battery backup of the sRAMs via batteries on the central module with monitoring
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-M.
Watchdog
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