KEYENCE Visual KV Series - Manual (Page 264)

7.2 Configuration KV-300 Series Only
KV
-300
KV-10/80
Chapter 7 KV-L2 Serial Interface Module
1-240
7
7.1 Outline
7.1.1 Features
The KV-L2 Serial Interface Module is an interface module that controls communica-
tions between the KV-300 CPU and external units such as personal computers. It
has the following features.
Includes RS-232C and RS-422A communications ports.
The RS-232C port has a D-SUB 25-pin type. The other port, located on the terminal
block, is switchable between RS-422A and RS-232C.
Monitors operation status of the KV-300 CPU.
The KV-L2 monitors the operation status of the KV-300 CPU by reading the values
of data memory, relay contacts, counters, and timers from the KV-300 CPU.
Uploads and downloads Ladder programs.
Ladder programs can be transferred with the KV Ladder programming software (Ver.
2).
Allows 1:n connections.
Up to ten KV-300 CPUs can be connected to a single personal computer through
the KV-L2, allowing multi-drop connections. Multi-drop connections between KV-300
CPUs are also supported (in non-procedure mode).
Data can be fetched from external units.
Text data can be read into the KV-300 CPU data memory.
Allows direct connection of a display using a Host-Link protocol.
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