Technical data

Fieldbus Communication • 205
BACnet/IP
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
4.2.1.2.6 Protocol Implementation Conformance Statement (PICS)
The Protocol Implementation Conformance Statement (PICS) describes ob-
jects, capabilities and functions that the BACnet device supports. This is a
standard document that must be filled in by the manufacturer. When linking
different systems, the PICS and the BIBBs and other device features contained
therein are compared with one another.
4.2.1.2.7 Device Profile
There are six different device profiles defined in Annex L of the BACnet
Standard. They are divided up according to the minimum BIBBs to be sup-
ported in each IA and enable a rapid and authoritative comparison between
different BACnet devices.
• BACnet Operator Workstation (B-OWS)
Operator interface/building control technology used for the management
and configuration tasks of the BACnet system, but does not take over any
direct control and regulation tasks.
• BACnet Building Controller (B-BC)
Freely programmable automation system that takes over a multitude of
automation/regulation and control tasks.
• BACnet Advanced Application Controller (B-AAC)
Corresponds to a configurable application controller that takes over spe-
cially prefabricated tasks, but with less available means than the B-BC.
• BACnet Application Specific Controller (B-ASC)
Corresponds to an automation device/controller, but with fewer available
means than the B-AAC. Functions as a control and regulation unit for spe-
cial applications and programs and their parameterization.
• BACnet Smart Actuator (B-SA)
Intelligent, network-capable field device for switching and actuating
• BACnet Smart Sensor (B-SS)
Intelligent, network-capable field device as sensor
Additional Information
In addition to these device profiles, there is an additional profile with the
BACnet Gateway (B-GW), which has only functioned up to now as a sugges-
tion of the B.I.G. EU and is not anchored in the BACnet Standard (last up-
dated: ASHRAE Standard 135-2004, Version 1, Revision 4).
For each of the listed device profiles, there is a certain set of BIBBs to imple-
ment as a minimum requirement in the BACnet/IP controller. This minimum
requirement represents the capabilities of the device in the form of function
blocks (see Tab. 4-38) and makes devices comparable with each other.