Connection To Peripheral Devices; Btr System (No Dc Codes) - Okuma OSP-U100M Operation Manual

4203- E P-343
SECTION 3 DATA INPUT/OUTPUT OPERATION
3-5. Connection
to
Peripheral Devices
If an RS232C interface is used, a special-purpose cable must be used
to
connect the signals that are
required by an external device since the signals used for the connection
vary according to the external
device.
A typical example is shown below.
3-5-1
.
BTR System (No DC Codes)
Example 1 :
NC
Peripheral device
FG FG
TXD RD
<
RXD SD
RTS CS
4
CTS I/O BUSY/
4
DSRI I/O ALARM/
SG SG
RG1 READER START
DTR' DR
Fig. 3-9 Connection for BTR System (No DC Codes) (1)
Since no EXT-INT signal is used in this example, bit 1 of NC optional parameter (bit) No.
8 (No. 13,
14, 21 , 22) (Ready signals of CNO: to CN4:) should be set to "1 " in advance.
[Supplement]
(1) Timing Chart for READ
ra-igar
i
High
Ready
DSR
Low
High
Data
request
RG1
Low
\/
\/
Receive data
RXD
[
8 bits
Start bit
Stop bit
Fig. 3-10 Timing Chart
for READ [BTR System (No DC Codes)]