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Connection and Installation Methods
(1) When communicating through the RS-232C port
- The controller pin arrangement of the communication connector (for RS-232C)
Personal computer
DOS/V, IBM-PC
9-pin D-sub 25-pin D-sub
Pin No. Pin No.
Connector
case
3
2
5
7
8
6
1
5
4
* The maximum length of the communication cable depends on the communication speed.
Communication speed (kbps) Cable length - Conduct a communication
(2) When communicating through the RS-422
4-line system or 2-line system of RS422 shall be set as serial communication on the "I/O condition
settings."
See "Chapter 21: Setting the Input/Output Conditions" in the IV-C35M User's Manual, Function
and Operation.
4-wire system
Personal
computer
Signal
name
FG
TD
RD
SG
15 m
or less
(RS-232C)
PC98 series
Signal
name
Connector
FG
case
2
SD
3
RD
7
SG
4
RS
5
CS
6
DSR
8
CD
20
DTR
9.6 19.2
38.4 57.6 115.2
RS-232C/422 converter
Z-101HE
1
FG
SHIELD
2
TD
RD(+)
3
RD
RD(—)
7
SG
TD(+)
TD(—)
1 km or less
(RS-422)
Communication connector on the IV-C35M
(RS232C/RS422: 9-pin D-sub)
Pin No.
Connector
case
2
3
5
1
6
*(RS-232C)
Note: When terminal 1 and 6 are opened, flash
memory protection will be ON. If you do not
want to use a flash memory in serial, we
recommend not to short circuit terminal 1 and 6.
test before using the devices for
15 m or less
measurements.
2 to 3 m
Shielded twisted-pair cable
IV-C35M (9-pin D-sub)
Signal
Pin No.
name
Connector
FG
case
TA
4
TB
7
RA
8
RB
9
1
FL1
FL2
6
Note: When terminal 1 and 6 are opened, flash
memory protection will be ON. If you do not
want to use a flash memory in serial, we
recommend not to short circuit terminal 1 and 6.
5-14
Signal
Function
name
Frame ground
FG
RD
Received data
SD
Transmitted data
Signal ground
SG
FL1
Memory protection 1
Memory protection 1
FL2
Function
Connector frame ground
Transmitted data
(IV-C35M - Personal computer)
Received data
(Personal computer -IV-C35M)
Memory protection 1
Memory protection 2
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