Yaskawa i80M Connecting Manual - Manual (Page 56)

(2) CODES USED
The following two types of codes are used, and are selectively used by parameters.
EIA codes or ISO codes
EIA codes or ISO
control codes (DC1
To use control codes, the machine to be controlled must be able to discriminate codes DC1
through DC4. Codes
— DC4 are as follows.
Table 14.2 TO DC4 Code and Character
I
1 1
Character
DC1 Tape reader start
_ _ _
o
DC2 Tape reader punching
o 0
DC3 Tape reader stop
0
DC4 Tape reader release
‘o
(3) TRANSMISSION BAUD RATE
Transmission Baud rates can be selected with parameters.
(4) CABLE LENGTH
The permissible maximum cable length varies with the machine to be controlled. Refer to the
manual of the machine builder’s manual. (Standard maximum cable length is
(5) INTERCONNECTION
Table 14.3 RS-232 C Interface Connecting Cable (A)
Nc
[
External
Equipment
Connections
Symbol Signal Name
Pin
No.
I
Symbol
FG Frame grounding o — — — o FG
SD Sending data 2 SD
RD Receiving data 3 RD
RS Sending data 4 RS
C s Capable of sending
DR Data set ready 6 DR
SG Signal grounding , 7
0
\
o
SG
ER Data terminal ready 20 IO BUSY
ER
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