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.

Technical Features

• Protocol                                        BACnet MS/TP 
• Address range                              00 to F9 hex
• bus interface                                 RS485  (two-wire bus)
• Transmission speed                     9600 to 115200 bit/s
• Operating voltage                         24 V AC/DC / +/- 10% (SELV)
• Current consumption                    220 mA (AC) / 110 mA (DC)
• Relative duty cycle                       100
• Inputs / digital                               11 x optocoupler, galvanically isolated
• Input / S0                                      1 x per DIN EN 62053-31, Class A
• Analogue inputs                            configurable
• for resistance or                            6 x 40 Ohm to 4 MOhm
• for voltage                                     6 x 0 to 10 V DC
• Input / Current                               1 x analogue 0 to 20 mA DC
• Outputs / Relays                            4 x switching (4PDT) / 250 V AC / 6 A
• Manual                                           button control, switching from automatic to manual operation by pressing > 1 s
• Outputs / PhotoMOS                      4 x 24 V DC / 100 mA galvanically isolated
• Outputs / voltage                            2 x analogue 0 to 10 V DC / 5 mA, galvanically isolated