Explanation Of Module Functions - Mitsubishi Electric MELDAS C6 Maintenance Manual

2. EXPLANATION OF MODULE FUNCTIONS

2.1 HR851 Card
[Block diagram]
RISC
CPU peripheral control
PLC operation
External I/O interface
SV2 HANDLE
TERMINAL
SV1 ENC SIO
[Explanation of functions]
The HR851 card functions as the main CPU.
CPU
ASIC
Memory
Cassette I/F
RT bus
I/O interface
Power supply
2. EXPLANATION OF MODULE FUNCTIONS
2.1 HR851 Card
DRAM
FLROM
SRAM
RTBUS
RIO-M
DIO
SKIP
64-bit RISC chip
CPU peripheral control & PLC operation
External I/O interface
DRAM For system working
FLROM For system ROM & BootROM
SRAM For processing program and parameter backup
CBUS connector For cassette memory (for maintenance)
RTBUS connector For back panel connection
SV1, SV2 connector Servo amplifier connection : 2 systems
ENC connector Encoder connection
HANDLE connector Handle connection
SIO connector RS-232C: 1ch, RS422: 1ch
TERMINAL connector Operation board connection
SKIP connector Skip signal connection
DIO connector Input: 16 points, output: 1 point
RIO-M connector Remote IO master station
RIO-M/S connector Remote IO master/slave station
DC24IN connector Input : 24VDC±5%: 3A
Output : 3.3VDC, 5VDC, 12VDC
BAT connector For lithium battery connection
II - 3
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Cassette memory
(For maintenance)
CBUS
ICCARD
RTC
External
power supply
24VDC/3A
Power supply circuit
(DC/DC)
Battery
3.6V
RIO-M/S
: 2ch
: 3ch
: 4 points
+5V
+3.3V
+12V