Hardware manual PCD7.LRxx-PG5 room controller │ Document 27-653; version ENG07 │ 2019-03-21
Saia-Burgess Controls AG
RUN/HALT key
Room controller/CPU
3-18
3
3.9
LED/operating states
The colour LEDs indicate the possible operating statuses of the CPU, as shown in
the following table.
Meaning of LEDs
Function
Com Port #1
Com Port #0
STOP/HALT
RUN
Labelling
T1
R1
T0
R0
Description
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
USB
Sylk Bus
RS485 / Port 1
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
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
T1 R1 T0 R0
!
Data transfer via
RS-485 interface #1
/
–
–
–
Data receipt via
RS-485 interface #1
–
/
–
–
Data transfer via
RS-485 interface #0
–
–
/
–
Data receipt via
RS-485 interface #0
–
–
–
/
Switched off
–
–
–
–
RUN (program running)
–
–
–
–
RUN Until (program running)
–
–
–
–
/
flashes at 1 Hz
STOP
(no program running)
–
–
–
–
/
flashes at 1 Hz
HALT
(no program running)
–
–
–
–
FW download
–
–
–
–
/
flashes at 1 Hz
/
flashes at 1 Hz
RESET/service key pressed
–
–
–
–
/
flashes at 2Hz
/
flashes at 2 Hz
Legend:
LED off
LED on
/
LED flashing
Operating status
Start
Self-diagnostics for approx. 1 s after power-on or restart
Run
Normal processing of user program after start
Run Until
Conditional run status. A condition has been set in the debugger
that has not yet been met
Stop
-
The “Stop” status occurs in the following cases:
- Programming unit connected in PGU mode while the CPU
was switched on
- PGU stopped by programming unit
-
Condition for “Run Until” has been met
HALT
-
The “HALT” status occurs in the following cases:
- RUN/HALT key pressed
- HALT instruction processed
- Critical error in user program
- Hardware error
- No program loaded
- No communication mode with S-Bus PGU or gateway master port
System diagnostics
Reset
- The RESET status is caused by the following:
- Supply voltage too low
- Firmware not started