
6.2 Preparing for Communications
E5AK
6--3
6.2 Preparing for Communications
For details on wiring when using the communications, see Chapter 2 Prep-
arations.
J
Cable connections
·
Only one controller can be connected to the host computer.
·
The cable length should not exceed 15 meters.
·
Use shielded twisted-pair cables (AWG28 or more) for the cables.
RS-232C
No.
20 SD
RD
19
18 SG
E5AK
RS-232C
No.
20 SD
RD
19
18 SG
E5AK
IBM-PC/XT
DE-25
Female
DTE
(SD) TXD
(RD) RXD
(RS) RTS
(CS) CTS
(SG) COMMON
(ER) DTR
(DR) DSR
2
3
4
5
20
6
7
FG
1
(RD) RXD
(SD) TXD
(ER) DTR
(SG) COMMON
(RS) RTS
(CS) CTS
(DR) DSR
2
3
4
5
8
6
7
FG
1
25 pins
IBM-PC/AT
DE-25
Female
DTE
9 pins
·
Up to 32 controllers including a computer can be connected to the host
computer.
·
The total cable length should not exceed 500 meters.
·
Use shielded twisted-pair cables (AWG28 or more) for the cables.
·
Attach terminators to the controllers at both ends of a series of control-
lers connected in an open configuration. For example, in the following
configuration, connect the terminator to the host unit and unit No.30,
and do not connect terminators to unit Nos.0 to 29.
·
Use terminators having a resistance of 240
W
(1/2 W). The total resis-
tance of both ends should be at least 100
W
.
Host computer
E5AK (No.0)
E5AK (No.30)
RS-422
RS-422
RS-422
Shielded cable
TerminatorX2
(240
W
1/2 W)
RDA
RDB
SDA
SDB
SG
FG
SDA
32
No.
SDB
31
RDA
19
RDB
20
SG
18
SDA
32
No.
SDB
31
RDA
19
RDB
20
SG
18
F
RS-232C
F
RS-422
Содержание E5AK
Страница 1: ...Cat No H083 E1 02A E5AK Digital Controller USER MANUAL ...
Страница 21: ...CHAPTER 1 INTRODUCTION 1 12 ...
Страница 33: ...CHAPTER 2 PREPARATIONS 2 12 ...
Страница 51: ...CHAPTER 3 BASIC OPERATION 3 18 ...
Страница 145: ...CHAPTER 7 CALIBRATION 7 14 ...