Functional Specifications; Communications Specifications - Hitachi CMU Series User Manual

1.2.2 Functional specifications

Item
Model
Programming language HI-FLOW (control flowchart language), C language
Processor
Kind
Main
Size
memory
RAS
Kind
Program
memory
Size
HI-FLOW and C language tasks run on main memory and are backed up to program memory.
Transfers and/or updates from a tool are automatically backed up to program memory. Tasks
are automatically loaded from program memory into main memory when the module reboots.
The model-LQP525 or LQP527 CMU module is capable of battery-backing its main memory
when used in conjunction with a battery module (model LQZ500).

1.2.3 Communications specifications

Item
Transmission method
Electrical interface
Protocol
Maximum number of
connectable units
Maximum number of stations
Data transmission rate
Connection connector
Connection cable
Hot swap
LQP520
SH4 processor (SH7751, 160 MHz, 300 MIPS)
SDRAM
32 MB
ECC (Single-bit memory errors corrected automatically)
Flash memory (nonvolatile memory)
32 MB
(HI-FLOW: 4 MB, C language: 16 MB, OS and future reserve: 12 MB)
Serial transmission (bit-serial transmission)
10BASE-T: Conforming to IEEE802.3 (conforming to
100BASE-TX: Conforming to IEEE802.3u
TCP/IP or UDP/IP
n units per hub (The value of n depends on the hub.)
Up to 1,024 units per network
100 Mbps or 10 Mbps
RJ-45 modular connector
10BASE-T/100BASE-TX twisted-pair cable
Up to 100 m per segment
Not possible
Specifications
LQP525
32 MB (battery-backable)
Specifications
CSMA/CD)
(conforming to CSMA/CD)
1-3
1 SPECIFICATIONS
LQP527