F 8621A (0606)
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HIMA Paul Hildebrandt GmbH + Co KG, P.O. Box 1261, 68777 Brühl
F 8621A
F 8621A: Coprocessor module
Use in PES H41q/H51q (from BS41q/51q V6.0-6 (9808) with ELOP II)
Figure 1: F 8621A Coprocessor module
The coprocessor module has its own microprocessor HD 64180 and operates with a clock fre-
quency of 10 MHz. It contains mainly the following functions:
– 384 kbyte static memory, CMOS-RAM and EPROM on two ICs; battery buffering of the
RAMs on power supply monitoring module F 7131 (H51q)
– at H41q subrack battery buffering via buffer batteries on rear PCB
– 2 interfaces RS 485 (half-duplex) with galvanic isolation and own communication proces-
sor. Transmission rates (set by software): 300, 600, 1200, 2400, 4800, 9600, 19200,
57600 bps, or takeover of the values which are set on the CU via DIP switches
– Dual Port RAM for fast alternating memory access to the central module
Space requirement 4 SU
Operating data 5 VDC / 360 mA
Note In central subracks of H51q systems the coprocessor module can be
used only in the slots CM1 to CM3.
The mixed operation for safety-related communication via a coproces-
sor module F 8621A and parallel via the communication module for
Ethernet communication F 8627X is not admissible.
Switches S1...S4
EPROM
Operating
system
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