Start-Up; Switch-On; Private And Shared Terminals; Setting The Controller's Address - Carel pCO5+ User Manual

ENG

6.1 Switch-on

When the controller is switched on it runs a test on the secondary display,
lighting up the segments one by one.

6.2 Private and shared terminals

All pCO5+ controllers can be connected to each other and to other
CAREL devices in a pCO local area network (pLAN) without requiring
optional devices, allowing the communication of data and information
from one location (node) to another. The terminals can show the
variables (temperature, humidity, pressure, I/O, alarms) from just one
controller at a time. The terminal does not need to be connected to the
controller during normal operation, but can be used just for the initial
programming of the main parameters. If one or more terminals are
disconnected or malfunctioning, the application program continues to
work correctly on each controller. Generally, the application program can
monitor the status of the network and intervene as necessary to ensure
the continuity of control functions. The fi gure below shows a possible
pLAN network connection diagram.
pGDE/pGD1
G G
G0 G0
+V
+V term term
GND GND
+5 V REF +5 V REF
Rx-/Tx-
CANL
Rx+/Tx+
U1 CANH
GND
U2 GND
U3
GND
+VDC
U4 B4
BC4
GND
U5 B5
GND BC5
C1 C1
NO1 NO1
NO2 NO2
VG VG
VG0 NO3 VG0 NO3
C1 C1
Y1 Y1
Y2 C4 Y2 C4
Y3 NO4 Y3 NO4
Y4 NO5 Y4 NO5
ID1 NO6 NO6
ID2 C4 C4
ID3
C7 C7
ID4 NO7
NO7
ID5
NO14 C7 C7
ID6
C14 NO8
ID7 NO8
NC14
C8 C8
ID8
ID15H NO15 NC8
IDC1 NC8
ID15 C15
U6 IDC15 NC15 B6
U7 ID16 B7
U8 ID16H B8
C9 C9
GND GND
NO9
C16 NO9
ID9
NO10 NO10
NO16
ID10
NO17 NO11 NO11
ID11
C9 C9
NO18
ID12
Y5 C16
IDC9
Y6 NO12 NO12
C12 C12
ID13H U9
ID13 GND NC12 NC12
IDC13 U10
NO13 NO13
ID14 GND
C13 C13
ID14H ID17
NC13 NC13
ID18
IDC17
pCO5+: ADDR=1 pCO3: ADDR=2
All the terminals and controllers in the network must communicate at the
same speed. The speed is adjusted automatically.
A maximum of 32 units can be connected, including:
•
pCO controllers, which run the control program;
•
external modules, which provide extended functionality (such as the
EVD Evolution driver);
•
terminals.
Every device belonging to a pLAN network is identifi ed by an address,
i.e. a number from 1 to 32. The number 32 can be assigned only to a
terminal. Programs for diff erent applications (e.g. chillers, air-conditioners,
compressor racks, etc.) cannot be automatically integrated into a local
network – they must be confi gured according to the system's architecture
using the CAREL development tool.
Each controller connected to the network can simultaneously manage
up to 3 terminals in the pLAN network. The values are displayed on the
terminals at the same time and not independently, as if the keypads and
the displays were connected in parallel. Because of that, the controller
cannot drive diff erent kinds of terminals at the same time.
Each terminal associated with a certain controller is defi ned as:
- private ("Pr") if it displays only the output of that controller;
- shared ("Sh") if either automatically or from the keypad it can be switched
between various controllers.
Each pCO constantly updates the displays on the private terminals, while
the shared terminals (if present) are updated only by the pCO that is
controlling the terminal at that time.
pCO5plus +0300020EN rel. 1.2 - 07.11.2013
6.
pGDE/pGD1
pLAN (RS485 62.5 kbit)
G
G0
SYNC
C3
NO3
B1
B2 NO4
NO5
B3
NO6 TLAN
GND
NO7
C3
GND
GND
+5Vref
+VDC ID2
B7 Y1
ID1
Y2
GND B8
GND
C1
NC1 NO2
NO1 C2
pCO5 compact:
ADDR= N
Fig. 6.a
STARTUP
The fi gure below illustrates the logic of the relations.
pGDE Private
pCO5+: 1
G
G0
+V term
GND
+5 V REF
U1
U2
U3
GND
+VDC
U4
GND
U5
GND
C1
NO1
VG NO2
NO3
VG0
Y1 C1
Y2 C4
Y3 NO4
Y4 NO5
ID1 NO6
ID2 C4
ID3
C7
ID4
NO7
ID5
NO14 C7
ID6
C14
ID7 NO8
NC14 C8
ID8
ID15H NO15
IDC1 NC8
ID15 C15
U6 IDC15
NC15
U7 ID16
U8 ID16H
C9
GND
NO9
C16
ID9
NO16 NO10
ID10
NO11
ID11 NO17
C9
NO18
ID12
Y5 C16
IDC9
Y6 NO12
ID13H C12
U9
NC12
ID13 GND
IDC13 U10
NO13
ID14
GND C13
ID14H ID17
NC13
ID18
IDC17
pGDE Private
pCO5+: 4
G
G0
+V term
GND
+5 V REF
U1
U2
U3
GND
+VDC
U4
GND
U5
GND
C1
NO1
VG NO2
VG0 NO3
C1
Y1
Y2 C4
Y3 NO4
Y4 NO5
ID1 NO6
ID2 C4
ID3
C7
ID4
NO7
ID5
NO14 C7
ID6
C14 NO8
ID7
NC14
ID8 C8
ID15H NO15
NC8
IDC1 ID15
C15
U6 IDC15 NC15
U7 ID16
ID16H
U8
C9
GND
NO9
ID9 C16
NO10
NO16
ID10
NO17 NO11
ID11
C9
ID12 NO18
Y5
C16
IDC9 Y6 NO12
C12
ID13H U9
ID13 GND NC12
IDC13 U10 NO13
ID14 GND
C13
ID14H ID17
NC13
ID18
IDC17
In this example the shared terminal is associated with 4 pCO controllers,
but at this instant only controller 1 can display data and receive commands
from the keypad. Switching between controllers occurs in sequence (1-
>2->3->4->1...) by pressing a button defi ned by the application program;
however it can also be done automatically when requested by the
program. For example, a pCO may request control of the shared terminal
to display alarms or, vice-versa, relinquish control to the next pCO after a
set time (cyclical rotation).
Data on the number and type of terminals is determined during initial
network confi guration and saved in the permanent memory of each pCO
controller. Details of the confi guration procedure are described below.
See the "Installation" chapter for information on the cables to use for the
electrical connections.

6.3 Setting the controller's address

The controller's pLAN address is factory-set as 1.
There are two ways to set a controller's address:
1. using the A button (see fi gure below) located on the left of the
7-segment display. It can be accessed using the tip of a screwdriver
(ø<3 mm);
2. using a terminal connected to the pLAN network.
1. Displaying the pLAN address
Procedure:
•
briefl y press the A button (no more than 5 s) to display the controller's
current pLAN address. Five seconds after releasing the button the
display is cleared.
J1 J24
36
pGDE Private
pCO5+: 2
G
G0
+V term
GND
+5 V REF
U1
U2
U3
GND
+VDC
U4
GND
U5
GND
C1
NO1
VG NO2
VG0 NO3
C1
Y1
Y2 C4
Y3 NO4
Y4 NO5
ID1 NO6
ID2 C4
ID3
C7
ID4
NO7
ID5
NO14 C7
ID6
C14 NO8
ID7
NC14
ID8 C8
pGDE/pGD1 Shared ID15H NO15
NC8
IDC1 ID15
C15
U6 IDC15 NC15
U7 ID16
ID16H
U8
C9
GND
NO9
ID9 C16
NO10
NO16
ID10
NO17 NO11
ID11
C9
ID12 NO18
Y5
C16
IDC9 Y6 NO12
C12
ID13H U9
ID13 GND NC12
IDC13 U10
NO13
ID14 GND
C13
ID14H ID17
NC13
ID18
IDC17
1 2
4 3
pGDE Private
pCO5 compact: 3
G
G0
SYNC
C3
B1 NO3
NO4
B2
NO5
B3
NO6 TLAN
GND
NO7
C3
GND
GND
+5Vref
ID2
+VDC
B7 Y1
ID1
Y2
GND B8
GND
C1
NC1 NO2
NO1 C2
Fig. 6.b
F i e l d B u s c a r d
J2 J3
A
Fig. 6.c
FB
B M S c a r d
J4