process data are stored in RAM, and ram is installed on the Ethernet network card or battery card
The backup battery can maintain the configuration content and data in case of power failure.
Basic unit pmbo2f characteristics:
mouth
Installation slots of 4 fieldbus interface cards
c
Installation slot of 2 Ethernet network cards
Support redundant operation of Fieldbus interface card
Support hot plug of Fieldbus interface card
Technical indicators of basic unit pib02f:
CPU :Intel 80960HT25/75
32-bit RISC superscalar processor with operation speed of 150 MIPS
4 MB FLASH-EPROM
EEPROM，serial， 16 Kbit
o
Ram 8 MB (with error check and correction function, abb patent)
16 K internal cache (CPU cache RAM)
Ram backup battery (matchdog, optional redundancy)
Equipment internal temperature monitoring
Watchdog
I/0 sweeping cycle: configurable.
Time required to process 1000 IL (instructions):
< 1.0 ms (processing binary and 16 bit arithmetic instructions)
<2ms (processing fixed-point arithmetic instructions)
< 1.5ms (processing 32-bit floating-point arithmetic instructions)
Bthernet network card ei801f/ei802f/ei803f
The industrial Ethernet network card provides communication with the system network diginet s (iee802.3 Ethernet standard)
Interface.
Basic characteristics:
1ee802.3 Ethernet standard
o
Ei801f provides 10base2 thin cable communication interface
Ei802f provides 10BASE5 thick cable connection (through AUI interface)
Ei803f provides 10Base-T twisted pair communication interface
32-bit data bus, 100 mb/s
DMA (direct memory access) mode main memory ram, corresponding CPU operating load <4%
Optional ram backup battery
Fieldbus interface replacement card
