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Sharp IV-S51M Instruction Manual page 22

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(2) When communicating through the RS-422 port
Specify the 4-wire or 2-wire on the [Serial Communication Parameters] menu from the [System
Conditions] menu of IV-S51M in accordance with the actual wiring system.
4-wire system
RS-232C/RS-422
Personal computer
converter Z-101HE
Signal name
FG
TD
RD
SG
15m or less
(RS-232C)
2-wire system
RS-232C/RS-422
Personal computer
converter Z-101HE
Signal name
FG
TD
RD
RS
SG
15m or less
(RS-232C)
1
FG
SHIELD
2
TD
RD(+)
3
RD
RD(–)
7
SG
TD(+)
TD(–)
1km or less(RS-485)
1
FG
SHIELD
2
TD
RD(+)
3
RD
4
RS
RD(–)
7
SG
1km or less(RS-485)
4 - 5
Shielded twisted-pair
cable
Serial interface on the IV-S51M
Pin No.
Signal name
Connector case
4
7
8
9
Shielded twisted-pair
cable
Serial interface on the IV-S51M
Pin No.
Signal name
Connector case
4
7
8
9
Function
FG
Frame ground
TA
Transmitted data
(IV-S51M
personal computer)
TB
RA
Received data
(personal computer
RB
Function
FG
Frame ground
TA
Transmitted data
(IV-S51M personal computer)
TB
RA
Received data
(personal computer IV-S51M)
RB
IV-S51M)

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