Saia-Burgess
Controls Ltd.
Manual PCD7.D23x│Document 26/795; Edition E7│15.04.2005
Hardware-System Overview
2
2-7
User created interface connection cables
2.4
User created interface connection cables
2.4.1 Connection in RS 422 mode (single terminal)
Terminal PCD7.D23x
PCD1, PCD2, PCS1
PCD3.Mxxxx
2.4.2 Connection in RS 485
PCD7.D23x
PCD7.D23x
PCD1/2,
PCD3.
PCD3.
PCD2.
Address 02
Address 01
PCS1*
Mxxxx
Mxxxx
M480
The PCD7.D23x terminals have a switch for a termination resistor R on the rear side
of the housing, available in RS 485 & RS 422. At the last station, the switch S has
to be moved to the “CLOSED” position. For all other stations, switches S have to be
moved in the “OPEN” position
*If a PCD1 or a PCS1 is used as an end station, a terminal box (PCD7.T160) has to
be used.
R=150 Ohm 0.25 Watt on board
*Jumper J1 (located on the rear
side of the PCD7.F110) must
be set to the "closed" position
11 TX RX
12 /TX /RX
10 GND
Module
PCD7.F110
TX RX 4
/TX /RX 9
GND 5
9-pole
D-type connector
TX RX 4
/TX /RX 9
GND 5
9-pole
D-type connector
R
R
S
S
1 D
2 /D
0 PGND
Module
PCD3.F110
29 D
28 /D
24 GND
on
board
D
/D
PGND
on
board
*
*
TX 4
/RX 6
/TX 9
GND 5
11 TX
12 /TX
13 RX
14 /RX
10 GND
9-pole
D-type connector
Module
PCD7.F110
RX 1
x1 TX
x2 /TX
x3 RX
x4 /RX
x0 GND
Module
PCD3.F110