80
saia-pcd.com
PCD
1
E-Line
Automation stations –
E-Line
The remote I/O modules are controlled via RS-485 and enable decentralised automation using
industrial quality components. The data point mix is specifically designed for applications in
the HVAC sector. Moreover, the compact design enables the use of electrical distribution boxes
alongside installations even in confined spaces. Commissioning and servicing are facilitated
due to the local override operating level for each output. Remote maintenance is also possible
using the optional access to the override operating level via the web interface in the Saia PCD®
controller. Programming is also very efficient and fast using a comprehensive FBox library with
web templates.
System properties
Optimised S-Bus protocol for faster
communication (4 × faster)
Local override operating level via web
panel or buttons on the module
Specific I/O mix suitable for HVAC
systems
Convenient programming using the
FBox library and web templates
Industrial quality in accordance with
IEC EN 61131-2
Pluggable terminal blocks protected
by covers
Electrically isolated RS-485 interface
Device design
1.5.4
Saia PCD1 E-Line input and output modules
Manual or remote override operating level
For modules with a manual override operating level, commis-
sioning can occur independent of the master station.
The manual operating level can also be controlled remotely
from a touch panel. If the bus line is disconnected, the module
retains the manually set values. Traditional manual operat-
ing levels in the control cabinet door via potentiometers and
switches can therefore be completely replaced.
Three security levels can be defined for the manual
operating level:
1. Operation permitted only from the module
2. Operation permitted from the module and limited opera-
tion from the panel. If manual operation is activated
at the module, it cannot be reset from the panel.
3. Unlimited operation from the panel and module.
Depending on the application, manually set
values may not be reset from the panel.
This can therefore be deactivated or limited.
Programming
The modules are addressed and programmed via FBoxes.
Bus wiring
Most modules are equipped with integrated terminating
resistors that enable wiring without additional external
components.
RS-485 interface
4 normally open
relays
4 analogue
outputs
Address switch
Supply
System LEDs
Status LEDs and
operating levels
16 digital inputs
8 analogue
inputs
Communication FBox:
Data exchange for I/O via optimised S-Bus
Configurable fall back state for bus interruption or timeout
Direct generation of the symbols
Reading and writing of the status of the override
operating level
Direct compatibility for web macros
Web templates
:
Web templates are available for the operation
and visualisation of the override operating level
4 changeover
relays
