Contemporary Control Systems BACnet Cube I/O BMT-SI4 User Manual

Digital input module, Bmt-si4

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METZ CONNECT GmbH | Im Tal 2 | 78176 Blumberg | Germany
Phone +49 7702 533-0 | Fax +49 7702 533-433
Mounting instruction see www.metz-connect.com

2. Declaration of Conformity

The device was tested according to the applicable standards. Confor-
mity was proofed. The declaration of conformity is available at the
manufacturer METZ CONNECT GmbH.

Notes Regarding Device Description

These instructions include indications for use and mounting of the
device. In case of questions that cannot be answered with these in-
structions please consult supplier or manufacturer.
The indicated installation directions or rules are applicable to the
Federal Republic of Germany. If the device is used in other countries it
applies to the equipment installer or the user to meet the
national directions.

Safety Instructions

Keep the applicable directions for industrial safety and prevention of
accidents as well as the VDE rules.
Technicians and/or installers are informed that they have to
electrically discharge themselves as prescribed before installation or
maintenance of the devices.
Only qualified personnel shall do mounting and installation work with
the devices, see section “qualified personnel”.
The information of these instructions have to be read and
understood by every person using this device.

Symbols

Warning of dangerous electrical voltage
Danger

means that non-observance may cause risk of life,
grievous bodily harm or heavy material damage.

Qualified Personnel

Qualified personnel in the sense of these instructions are persons who
are well versed in the use and installation of such devices and whose
professional qualification meets the requirements of their work.
This includes for example:

• Qualification to connect the device according to the

VDE specifications and the local regulations and a qualification to
put this device into operation, to power it down or to activate it by
respecting the internal directions.

• Knowledge of safety rules.

• Knowledge about application and use of the device within the

equipment system etc.

7632/899299-12

Digital Input module

BMT-SI4

11088913

1. Description

The BACnet MS/TP module with 4 S0 inputs to DIN EN 62053-31
class A was developed for decentralized switching tasks. It is suitable
for counting S0 counter pulses. This allows very good integration of
the module into an energy controlling system. In case of a power
failure, the last counter readings are saved. The inputs can be scanned
by means of standard objects via a BACnet client. The module is
addressed and the baud rate is set by means of two address switches
on the front.
Suitable for decentralized mounting in serial sub-distributor.

3. Technical Data

BACnet Interface

Protocoll

BACnet MS/TP

Transmission rate

9600 ... 115200 Bd

(factory setting 9600 Bd)

Cabling

RS485 two wire bus with voltage

equalizing cable in bus / line topology

terminate with 120 Ohms

Supply

Operating voltage range

20 ... 28 V AC/DC (SELV)

Current consumption

170 mA (AC) / 65 mA (DC)

Relative duty cycle

100 %

Input

4x S0 input according to DIN EN 62053-31 Class A

Housing

Dimensions WxHxD

1.4 x 2.8 x 3.0 in. (35 x 70 x 65 mm)

Weight

83 g

Mounting position

any

Mounting

standard rail TH35 per IEC 60715

Mounting in series

the maximum quantity of modules

without space

connected in line is limited to 15 or

to a maximum power consumption of

2 Amps (AC or DC) per connection to

the power supply. For any similar

block of additional modules a sepa-

rate connection to the power supply

is mandatory.

Material
Housing

polyamide 6.6 V0

Terminal blocks

polyamide 6.6 V0

Cover plate

polycarbonate

Type of protection
(IEC 60529)
Housing

IP40

Terminal blocks

IP20

Terminal blocks

Supply and bus
4 pole terminal block

max. AWG 16 (1,5 mm²) solid wire

max. AWG 18 (1,0 mm²) stranded wire

Wire diameter

min. 0.3 mm up to max. 1.4 mm

(terminal block and jumper plug are

included to each packing unit)

Module connection
Input

max. AWG 12 (4.0 mm²) solid wire

max. AWG 14 (2.5 mm²) stranded wire

Wire diameter

min. 0.3 mm up to max 2.7 mm

Protective circuitry

polarity reversal protection of

operating voltage

polarity reversal protection of supply

and bus

Temperature range

Operation

23° F to 131° F (-5 °C to +55 °C)

Storage

-4° F to +158° F (-20 °C to +70 °C)

Display

Operating / bus activity

green LED

Error indication

red LED

Status of the inputs

yellow LED

24 V AC/DC

GND

BUS B+

BUS A-

GND

B+

A-

+24V

B+

A-

S04-

+24V

GND

S04+

S03- S03+

S01+ S01-

S02+ S02-

4. Wiring diagram

5. Wiring

MODBus RTU on RS-485

A1/ +24V

A2/ GND

BUS B +
BUS A

-

24V

RISC - CPU

Use Copper Conductors Only

24V AC / 170mA
24V DC / 65mA
GND, Class 2

S01+
S01

S04+
S04

S02+
S02
S03+
S03

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