2. Important information before setting up the
system
2.1 Specifications
BACnet MS/TP
Description
Comments
BACnet connector
Screw-type terminal
3 pins.
BACnet connection type
RS-485
BACnet wire configuration
Two wire + Ground
Conductors: Plus, Minus and Ground.
Maximum cable length
1200 m
Equals 4000 ft.
Recommended cross-section of BACnet cable
0.20 - 0.25 mm2
AWG24 or AWG23.
MAC address
0-127
Set via Grundfos GO ("Fieldbus
address").
Line termination
On or Off
Set via DIP switch 2.
Supported transmission speeds [bits/s]
9600, 19200, 38400, 76800
Set via Grundfos GO.
Data bits
8
Fixed value.
Stop bits
1
Fixed value.
Parity
None
Fixed value.
Maximum number of BACnet devices
32
This number can be increased using
repeaters.
Grundfos BACnet vendor ID
227
BACnet segmentation support
No
Character set support
ANSI X3.4
Base definition for the widely used
character code known as ASCII.
BACnet device profile
B-ASC
BACnet Application-Specific controller.
BACnet MS/TP master
Yes
The MIXIT unit is a BACnet MS/TP
master device.
Manual slave address binding
No
BACnet protocol revision
15
Max. master range
1-127
BACnet IP
Description
Application layer
HTTP, BACnet IP
Transport layer
UDP
Internet layer
Internet protocol V4 (IPv4)
Link layer
ARP, media access control
Ethernet cable
CAT5, CAT 5e, CAT6
Max. cable length
100 metres at 10/100 Mbit/s
Transmission speed detected
10/100 Mbit/s auto-detected
Ind. Ethernet protocol
BACnet IP
BACnet protocol revision
15
Max. APDU length
1496 (fix)
Default UDP port
47808
Max. master range
1-127
6
English (GB)
