Mitsubishi Electric GT15, Connection Manual

Page: 687 / 864

20. GOT MULTI-DROP CONNECTION
20.4 Connection Diagram
20 - 19
17
ROBOT CONT
ROLLER
CONN
E
C
TION
18
C
NC CONNECTION
19
ENER
GY M
EAS
URIN
G
UNIT/EL
EC
TRIC M
U
LT
I-
ME
ASUR
ING IN
STRU
MEN
T
CO
NNE
CTION
20
GOT
MUL
T
I-DROP
CONNECTION
21
MUL
TI
PL
E-GT1
4, G
T12,
GT
11
, GT
10
CO
NNECTIO
N FUNCTION
22
MUL
T
I-CHA
N
N
E
L
FUNCT
ION
23
F
A
TRANS
P
ARENT
FUNCTION
*1 Use the twisted pair cable for SDA/SDB and RDA/RDB.
*2 Set the terminating resistor selector to "330 ".
*3 Set the terminating resistor setting switch of the GOT main unit to "Disable".
1.4.3 Terminating resistors of GOT
*4 Connect a 330 terminating resistor to the GOT to be a terminal.
*5 Make sure to ground a cable shield line by applying Class D Grounding.
RS485 connection diagram 2)
(For 2 pair wiring)
CON side
*3
(20pin) CON side
*3
(20pin) CON side
*3
(20pin)
Serial multi drop
connection unit
6
8
10
12
2
1
3
4
5
7
9
11
13
14
15
16
17
18
19
20
RDA
*1
RDB
*1
SDA
*1
SDB
*1
SG
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
SG
NC
NC
NC
SDA2(TXD2+)
SDB2(TXD2-)
RDA2(RXD2+)
RDB2(RXD2-)
NC
RSA(RTS+)
NC
RSB(RTS-)
NC
CSA(CTS+)
NC
CSB(CTS-)
*2
*5 *5
5
7
9
11
2
1
3
4
6
8
10
12
13
14
15
16
17
18
19
20
SDA2(TXD2+)
SDB2(TXD2-)
RDA2(RXD2+)
RDB2(RXD2-)
SG
NC
NC
NC
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
NC
RSA(RTS+)
NC
RSB(RTS-)
NC
CSA(CTS+)
NC
CSB(CTS-)
*5 *5
6
8
10
12
2
1
3
4
5
7
9
11
13
14
15
16
17
18
19
20
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
SG
NC
NC
NC
SDA2(TXD2+)
SDB2(TXD2-)
RDA2(RXD2+)
RDB2(RXD2-)
NC
RSA(RTS+)
NC
RSB(RTS-)
NC
CSA(CTS+)
NC
CSB(CTS-)
*5 *5
*4
R
*4
R