HIMA F 8621A/F8621A Coprocessor Module Use In PES H51q

Coprocessor Module The coprocessor module features its own microprocessor, the HD 64180, operating with a clock frequency of 10 MHz. It includes the following functions: Memory: 384 kbyte static memory CMOS-RAM and EPROM on 2 ICs Battery buffer for the RAMs on the power supply monitoring module F 7131 Interfaces: 2 RS 485 (half-duplex) interfaces with galvanic isolation and an independent communication processor Transmission rates (set by software): 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps Capability to use values set on the CU via DIP switch Dual Port RAM: For fast memory access to the second central module Space Requirement: 4 TE Operating Data: 5 V DC, 360 mA Settings for RS 485: Interface 1: Settings S1 and S2 RS 485 enabled on S1, disabled on S2 Interface 2: Settings S3 and S4 RS 485 enabled on S3, disabled on S4 Pin Allocation for RS 485 Interface Channels: Pin 1: Not used Pin 2: RP (5 V, decoupled by diodes) Pin 3: A/A (RxD/TxD-A) - Receive/Transmit-Data-A Pin 4: CNTR-A - Control signal A Pin 5: C/C (DGND) - Data Ground Pin 6: VP (5 V, positive pole of power supply) Pin 7: Not used Pin 8: B/B (RxD/TxD-B) - Receive/Transmit-Data-B Pin 9: CNTR-B - Control signal B