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BMT-TP BACnet MS/TP

915502
909305
911697
909307
Description

The BACnet MS/TP three-point module with 6 digital inputs, 2 two-level relay outputs and 2 digital outputs was developed for decentralized switching tasks. It is suitable for switching, for example, multi-level pumps and fans or louvers. In this case it is necessary to protect the relay contacts by appropriate load-dependent measures. The inputs and outputs can be switched and scanned by means of standard objects via a BACnet client. The input terminals 1 to 6 are wired with the C2 terminals on two poles to potential-free switches or contacts. The module has a manual control for the outputs. The module address and the baud rate are set by means of two address switches on the front. Suitable for decentralized mounting in serial sub-distributor.

  • Connection with screw type terminal blocks
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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
RS485 (two-wire bus)
9600 to 115200 bit/s
24 V AC/DC +/- 10 %
100 mA (AC) / 40 mA (DC)
100 %
6 x digital contacts
4.5 V DC
2 x two-level
250 V AC
5 A / output
2 NO (DPST-NO) (photoMOS)
40 V AC/DC
100 mA
Green, red and yellow LED
50 x 69.3 x 60 mm
126 g
-5 °C to 55 °C
-20 °C to 70 °C
IP40 / IP20
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Accessories
873544
Terminal block Type 259
777960
HUB DC
906226
Power supply NG4 24 V DC
905881
Typ 135 RIACON 135_3.5
Accessory of
929544
BMT-RTR BACnet-Router
929546
BMT-F-RTR BACnet-Router
964796
BMT-RTR/SC BACnet/SC Router
964798
BMT-F-RTR/SC BACnet/SC Router
Part number
11088813
4250184158899
Downloads
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).

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