KEYENCE LS-7000 - Manual (Page 165)

7-23
Chapter 7 RS-232C
7
Communication using an External Synchronous Trigger
The following section provides information on how to obtain output from the RS-232C
interface in synchronization with a timing input into the input terminal. This operation does
not require ASCII commands. Therefore, use this function if the KV-10/80 Series (or the KV
mode) is used only to retrieve measurements. This can also be used when connecting a
data logger to the LS-7000 Series.
Note: • No commands are available for measured value output or setting changes.
The printer cannot be connected while the LS-7000 Series is under external
synchronous control.
• While the RS-232C interface is transmitting measurements, do not trigger
the next measured value, otherwise the next measured value will not be
output.
Connections
■ Environment Settings
Make the following environment settings. Refer to RS-232C on page 5-7 for environ-
ment settings in detail.
Item
BAUDRATE 9600bps
STOPBIT
D-LENGTH
D-MODE
D-SEND
1
PARITY EVEN
8
PLC
S1/S2
Select the settings as specified in
this table.
Set value Remarks
The settings specified in this table
will be automatically selected
when the D-MODE item is set to
PLC.
❈ When the D-MODE item is set to PLC, the STX+ETX characters will be selected for
delimiter insertion.
❈ When the D-SEND item is set to S1 or S2, measured value output under external
synchronous control will be possible.
■ Output
Output All Measured Values
With the D-SEND item set to S1, all measured values will be output.
Output NG (No Good) Measured Values
If the D-SEND item is set to S2, NG measured values will be output.