Table of Contents
Advertisement
(2) When communicating through the RS-422
Specify the 4-wire or 2-wire RS-422 system on the [SERIAL COMM.] menu (see page 11-17).
Communication
standard
RS-422
Connector field
1 4-wire system
1
1
1
1
Personal
computer
RS-232C/422 converter
Z-101HE
Signal
name
1
FG
FG
2
TD
TD
RD
3
RD
SG
7
SG
15 m
or less
(RS-232C)
2
2 2-wire system
2
2
2
Personal
computer
RS-232C/422 converter
Signal
Z-101HE
name
FG
1
FG
SHIELD
TD
2
TD
RD
3
RD
RS
4
RS
SG
7
SG
15 m
or less
(RS-232C)
5
1
(9-pin D-sub female)
9
6
Signal
Pin No.
name
4
TA
Transmitted data
(IV-S20 - Personal computer)
7
TB
8
RA
Received data
(Personal computer - IV-S20)
9
RB
FG
Frame ground
Shielded twisted-pair cable
SHIELD
RD(+)
RD(–)
TD(+)
TD(–)
1 km or less
(RS-422)
Shielded twisted-pair cable
IV-S20 (9-pin D-sub)
Connector
RD(+)
RD(—)
1 km or less
(RS-422)
6- 17
Installation Conditions and Method
Direc-
Details
tion
Output
Input
IV-S20 (9-pin D-sub)
Signal
Pin No.
name
Connector
Connector frame ground
FG
case
TA
4
Transmitted data
TB
(IV-S20 - Personal computer)
7
RA
8
Received data
(Personal computer -IV-S20)
RB
9
1
FL1
Memory protection 1
6
FL2
Memory protection 2
Signal
Pin No.
name
Connector frame ground
FG
case
TA
Transmitted data
4
(IV-S20 - Personal computer)
TB
7
RA
Received data
8
(Personal computer -IV-S20)
RB
9
1
FL1
Memory protection 1
6
FL2
Memory protection 2
Function
Function
6
Advertisement
Table of Contents
