Hardware manual PCD7.LRxx-PG5 room controller │ Document 27-653; version ENG07 │ 2019-03-21
Saia-Burgess Controls AG
Communication
5
5-6
RS-485 interfaces (ports 0 + 1) in general
/n
n
AO0…
GND
0-10V
V
UI0…
0-10V
GND
Dig.
NTC
V
RS485 / Port 0
/D A +
D B -
RO3 IN3 RN RN IN0 RO0 IN1 RO1 IN2 RO2
TN T~ TO0 TN TO1
RUN/HALT
Power Supply
---
230 V In
24 VAC In
24 VAC Out
Sylk Bus
RS485 / Port 1
USB
T1 R1 T0 R0 !
1
L
2
N
3
24V~
4
24V0
5
TN
6
T~
7
TO0
8
TN
9
TO1
10
RO3
11
IN3
12
RN
13
RN
14
IN0
15
RO0
16
IN1
17
RO1
18
IN2
19
RO2
AO0
26
24V~
27
GND
28
AO1
29
AO2
30
24V~
31
UI0
34
GND
35
UI1
36
/DA+
40
DB-
41
GND
42
UI2
37
GND
38
UI3
39
GND
32
AO3
33
WM1
20
WM2
21
24V~
22
/DA+
23
DB-
24
GND
25
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
40 41 42
26 27 28 29 30 31 32 33
34 35 36 37 38 39
20 21 22
23 24 25
+3V3
/RX - /TX
/DA+
DB-
/DA+
DB-
RX - TX
+3V3
150E
1800E
1n
DB-
/DA+
DB-
Pull up
330 Ohm
Termination
Segment length max. 1200 m
max. 128 stations
Bus RS 485
First station
Middle stations
End station
Pull down
330 Ohm
More details on topics such as cable quality etc. can be found in
“26-740_Manual_RS-485-Components”
(available at
)
5.3.2
Bus cable for serial S-Net (S-Bus/RS-485)
A two-wire, twisted and shielded bus cable with cable strands of at least 0.5 mm
2
must be used.
Further information on S-Bus communication-modus can be found in
“26-739_Manual_SBC-SBus”
(available at
).