BMT-Multi I/O BACnet MS/TP
Description
The BACnet module BMT-Multi I/0 is a compact and rapidly to install solution to connect digital and analog signals from the actor and sensor level directly to a control unit in building automation via BACnet MS/TP protocol. 29 I/Os, some of them are configurable, are available for different tasks. The inputs and outputs can be controlled and scanned by standard objects via a BACnet Client. Module address and bit rate are set with two rotary switches on the front or by software. The relays K1 to K4 are equipped with a manual control and allow manual intervention. In this case it is necessary to protect the relay contacts by appropriate load-dependent measures. Suitable for decentralized mounting on DIN TH35 rail according to IEC 60715 in electrical distribution cabinets.
BACnet is a registered trademark of ASHRAE. ASHRAE does not endorse, approve or test products for compliance with ASHRAE standards. Compliance of listed products to the requirements of ASHRAE Standard 135 is the responsibility of BACnet International (BI). BTL is a registered trademark of BI.
Technical Data
General Data
BACnet MS/TP
00 to F9 hex
RS485 (two-wire bus)
9600 to 115200 bit/s
24 V AC/DC / +/- 10% (SELV)
220 mA (AC) / 110 mA (DC)
100 %
11 x optocoupler,galvanically isolated
1 x per DIN EN 62053-31, Class A
configurable
6 x 40 Ohm to 4 MOhm
6 x 0 to 10 V DC
1 x analog 0 to 20 mA DC
4 x changeover (4PDT) / 250 V AC / 6 A
push buttons, shift fromautomatic to manual operationby pressing > 1 s
4 x 24 V DC / 100 mAgalvanically isolated
2 x analog 0 to 10 V DC / 5 mA,galvanically isolated
Check US distributor inventory
Accessories
Accessory of
Part number
11089313
4251394600901
Downloads
- Data sheet
- ePLAN data - Registration required -
- Brochure (BACnet MS/TP components)
- Brochure (BACnet/IP and BACnet/SC Router - Data Security with Secure Connect)
- Product information
- Software (BACnet EDE-Files)
- Mounting note (11089313)
- Mounting note (Safety Instructions multilingual )
- Software manual (BACnet Software-Handbuch PICS (BMT))
FAQ's
What can I do if the red ERROR LED on the module lights up or there is no communication?
There are several possible causes, please check the following:
- Operating voltage (A1 / A2) connected and sufficient for the device.
- BUS (A- / B+) connected and not reversed. Pay attention to (- / +), not to A/B.
- Address (rotary switches) set correctly, must not occur twice or be 0.
- Bit rate (rotary switches) set correctly, only possible in programming mode (see mounting note).
- Shielded and twisted pair cable used.
- Termination resistor (120 Ω) set on both sides.
- Bias resistors available once on the BUS.
- Max Master as high as the number of physical master I/Os on the BUS.
- Max Frame high enough for all answers from participants to get through (BMT-RTR setting).
