F8621A HIMA

Description

HIMA F8621A Communication Module

Product Dimensions：

The coprocessor module has its own microprocessor HD 64180 and operates with a clock frequency of 10 MHz. It contains mainly the followingfunctions:– 384 kbyte static memory, CMOS-RAM and EPROM on 2 ICs. Batterybuffer of the RAMs on power supply monitoring module F 7131.– 2 interfaces RS 485 (half-duplex) with galvanic isolation and own communication processor. Transmission rates (set by software): 300, 600,1200, 2400, 4800, 9600, 19200, 38400, 57600bps or takeover of thevalues which are set on the CU via DIP switch.– Dual Port RAM for fast memory access to the second central module.Space requirement 4 TEOperating data 5 V DC: 360 mA
Other settings as given in the table are not admissible.Pin allocation of the interface channels RS 485Pin RS 485 Signal Meaning1 – – not used2 – RP 5 V, decoupled by diodes3 A/A RxD/TxD-A Receive/Transmit-Data-A4 – CNTR-A Control signal A5 C/C DGND Data Ground6 – VP 5 V, positive pole of power supply7 – – not used8 B/B RxD/TxD-B Receive/Transmit-Data-B9 – CNTR-B Control signal B

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