Technical data

46 • BACnet/IP Controller 750-830
Description
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
3 Fieldbus Controller
3.1 BACnet/IP Controller 750-830
3.1.1 Description
The 750-830 BACnet Controller connects the WAGO-I/O-SYSTEM with the
BACnet protocol. The 750-830 Controller complies with the BACnet device
profile "BACnet Building Controller" B-BC in accordance with DIN EN ISO
16484-5 and has 3 functions available internally:
1. Native server: For each channel, appropriate BACnet objects are gen-
erated automatically for the digital, analog input and output modules
that are connected to the controller.
2. Application server: Other supported BACnet objects can be created
via the IEC 61131-3 programming environment.
3. Application client: Using the client functionality, objects and their
properties can be accessed by other BACnet devices.
Access to BACnet/IP networks is provided by the controller's RJ45 interface.
The RS232 interface can be used as a standard RS232 or (beginning with
software version 2) as a BACnet-PTP connection to other PTP-capable
BACnet devices.
The 750-830 BACnet/IP Controller is based on an ETHERNET controller and
supports the corresponding functions:
All input signals from the sensors are combined. After connecting the control-
ler, all of the I/O modules on the node are determined and a local process im-
age is created from these. Analog and specialty module data is sent via words
and/or bytes; digital data is sent bit by bit.
The local process image is divided into two data zones containing input and
output data areas. The data of the analog modules are written into the process
image in the order of their position after the controller.
The bits of the digital modules are combined into words and then also mapped
onto the analog modules in the process image. If the number of digital inputs
and outputs is greater than 16 bits, the controller automatically begins a new
word.
According to IEC -61131-3 programming, the processing of the process data
occurs on location in the PFC. The link results created by this can be output
directly to the actors or transmitted via the bus to the higher-order controller.
The controller can then optionally communicate with higher-order systems ei-
ther via 10/100 Mbit/s (ETHERNET), "100BaseTX" or "10BaseT".