C500LK009V1 Omron, C500LK009V1 Datasheet - Page 164

• Manufacturer Part Number: C500LK009V1
• Description: PC LINK UNIT
• Manufacturer: Omron

Specifications of C500LK009V1

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Rack
read word
relay-based control
series
Single-level PC Link
System
Single-link PC Link System
Single-level SYSMAC LINK
System
protocol
refresh
reserved bit
reserved word
Restart Bit
rightmost (bit/word)
rising edge
RS-232C interface
RS-422 interface
RTS signal
RUN mode
self diagnosis
serial polling
150
The parameters and procedures that are standardized to enable two devices to
communicate or to enable a programmer or operator to communicate with a
device.
An assembly of various Units on a Backplane that forms a functional unit in a
building-block PC System. Racks include CPU Racks, Expansion I/O Racks,
I/O Racks, and Slave Racks.
A word in the LR area that contains data transferred from another PC in a PC
Link System. A read word cannot be written to by the PC.
The process of updating output status sent to external devices so that it agrees
with the status of output bits held in memory and of updating input bits in memory
so that they agree with the status of inputs from external devices.
The forerunner of PCs. In relay-based control, groups of relays are wired to
each other to form control circuits. In a PC, these are replaced by program-
mable circuits.
A bit that is not available for user application.
A word in memory that is reserved for a special purpose and cannot be accessed
by the user.
A bit used to restart a Unit mounted to a PC.
The lowest numbered bits of a group of bits, generally of an entire word, or the
lowest numbered words of a group of words. These bits/words are often called
least-significant bits/words.
The point where a signal actually changes from an OFF to an ON status.
An industry standard for serial communications.
An industry standard for serial communications.
Request To Send: the BASIC Unit can be programmed to assert this signal when
it wishes to send data through a communications port.
The operating mode used by the PC for normal control operations.
A process whereby the system checks its own operation and generates a warn-
ing or error if an abnormality is discovered.
A polling method in which each device being polled is polled one at a time in
sequence.
A wiring method in which Units are wired consecutively in a string. In Link
Systems wired through Link Adapters, the Units are still functionally wired in
series, even though Units are placed on branch lines.
A PC Link System in which there is no PC with more than one PC Link Unit.
A PC Link System that connects only two PCs to each other.
A SYSMAC LINK System in which there is no PC with more than one SYS-
MAC LINK Unit.
Glossary