KEYENCE Visual KV Series - Manual (Page 294)

7.6 Display Interface Mode Programming KV-300 Series Only
KV
-300
KV-10/80
Chapter 7 KV-L2 Serial Interface Module
1-270
7
7.6 Display Interface Mode Programming
7.6.1 Operating in Display Interface Mode
Communications protocols
In Display Interface mode, the KV-L2 can be connected to a host computer (PC) or a
display device to monitor DM values, present values, set values of counters, and
timers, as well as relay ON/OFF information on the KV-300 CPU. It can also be used
to call up screens for insertion of numeric values on the display device with a wire-
saving system and simplified programs.
To begin, set the communications protocol to link mode and connect the KV-L2 to
the display device as described below.
Setting the operation mode
Turn OFF the power switch before setting the operation mode. Use the operation
mode setting switches A1 to A4 (SET A). A1 and A2 control the mode for port 1, and
A3 and A4 control the mode for port 2. (Ports 1 and 2 can be set independently.)
Set the operation mode setting switches A1 to A4 as shown above.
Setting the communications protocol
Set the baud rate, data bit length, parity, and stop bit using the SET B communica-
tions protocol setting switch accordance to the specifications of the display device.
Turn OFF the power switch before changing settings.
ON
OFF
A1 A2 A3 A4
Operation mode Port 1 Port 2
A1 A2 A3 A4
KV mode OFF OFF OFF OFF
Display Interface mode OFF ON OFF ON
Non-procedure mode ON ON ON ON
ON
OFF
B1 B2 B3 B4 B5 B6 B7 B8
B1 B2 B3 B4 B5 B6 B7 B8*
Baud rate 1200 bits/s OFF OFF OFF OFF
2400 bits/s ON OFF OFF OFF
4800 bits/s OFF ON OFF OFF
9600 bits/s ON ON OFF OFF
19200 bits/s OFF OFF ON OFF
31250 bits/s ON OFF ON OFF
38400 bits/s OFF ON ON OFF
Setting disabled ON ON ON OFF
Parameters Data bits 7 bits OFF OFF
8 bits ON OFF
Parity None OFF OFF OFF
Odd ON OFF OFF
Even ON ON OFF
Stop bit 1 bit OFF OFF
2 bits ON OFF
* Always leave B8 set to the OFF position.
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