Contemporary Control Systems BMT-DI4 User Manual

Digital Input Module
BMT-DI4

1108841319

1. Description

The BACnet MS/TP module with 4 digital inputs was developed for
decentralized switching tasks. It is suitable for detecting potential-free
switch states, for example electrical limit switches on vent valves or
auxiliary contacts of power contactors. The inputs can be operated by
means of potential-free switches or contacts or used as voltage inputs.
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.

2. Declaration of Conformity

The device was tested according to the applic able st andards. Con­formit y was proofed. The declaration of conformit y 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
instructions please consult supplier or manufacturer.

The indicated installation dire ctions 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 dire ctions for industrial safety and prevention
of accidents as well as the VDE rules.

Technicians and/or installers are informed that they have to
elec trically discharge themselves as prescribed before installation or
maintenance of the devices.

Only qualified personnel shall do mounting and installation work
with the device s, see section “qualified personnel”.

The information of these instruc tions have to be read and under­stood by every person using this device.

7626/899299-06

Symbols

Warning of dangerous electrical voltage

Danger

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

Qualified Personnel

Qualified personne l in the sense of these instructions are per sons
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 sys tem etc.

3. Technical Data

BACnet Interface

Protocoll BACnet MS/TP
Transmission rate 9600 ... 115200 Bd
(factory set ting 9600 Bd)
Cabling RS485 two wire bus with voltage
equalizing cable in bus / line topology;
terminate with 120 Ohms

Supply

Operating volt age range 20 ... 28 V AC/DC (SELV)
Current consumption 50 mA (AC ) / 20 mA (DC)
Relative duty cycle 100 %
Input
Voltage input 30 V AC/ DC
High-signal recognition > 7 V AC/DC

Housing

Dimensions WxHxD 1.4 x 2.8 x 3.0 in. (35 x 70 x 65 mm)
Weight 95 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 IP4 0
Terminal blocks IP20

Terminal blocks

Supply and bus
4 pole ter minal 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

Temperature range

Operation -5 °C ... +55 °C
Storage -20 °C ... +70 °C
Protective circuitr y polarity reversal protection of
operating voltage
polarity reversal protection of supply
and bus

Display

Operating / bus ac tivity green LED
Error indication red LED
Status of the inputs yellow LED

4. Wiring Diagram

A1/+24 V

A2 /GND

BUS B+

BUS A-

24 V

BACnet MS/TP

5. Connection Diagram

L- 4- 4+ L+ 3+ 3-

24 V AC/DC

A1

A2

BUS B+

B+

BUS A-

A-

1+1- L+ 2-2+

RISC - CPU

on RS-485

GND

A1

A2

B+

1­1+
L+

2+
2-

max. 30 Vmax. 30 V

L-

3­3+
L+
4+
4-

L-

A-

L-

METZ CONNECT GmbH | Im Tal 2 | 78176 Blumberg | Germany
Phone [phone] | Fax [phone]
Mounting instruction see www.metz-connect.com

6. Mounting

Power down the equipment

Mount the module on standard rail (TH35 per IEC 60715 in
junction boxes and/or on distribution panels).

Installation
Electric installation and device termination shall be done by qua­lifie d persons only, by re spec ting all ap plicab le
specifications and regulations.

Plug in the terminal block for bus connection

21

Connect the cable for bus supply

7. Network adress and Bit rate setting

Configuration Switches
Hexadecimal Switches x10, x1 define the Network-Address
(00 - F9; e.g. F9h = 15x16+9 = 249d) and Baudrate (FA – FF).

• Turn Switch x10 to E (Device is temporaryly configured as Slave)

• Turn Switch x1 to A – F to select Baudrate

• Turn Switch x10 to F, wait 1 Second

• Red and green LEDs are blinking when Baudrate ist stored in
EEPROM

• Turn Switch x10 to select Network-Address

• Turn Switch x1 to select Network-Address

Adress switch x10 F F F F F F

Adress switch x1 A B C D E F

Bitrate (Bit/s) 9600 19200 38400 57600 76800 115200

Factor y setting: 9600 Bit /s

8. Connection examples

Connection example 1

24 V DC

GND

4-L- 4+ 3+L+ 3-

X10

X1

BUSY

2 3 4

24V

+24 V

GND

B+

A-

+24 V

GND

B+

A-

24V

ERROR

1

Connection example 2

24 V DC

GND

4-L- 4+ 3+L+ 3-

X10

X1

BUSY

2 3 4

24V

+24 V

GND

B+

A-

+24 V

GND

B+

A-

24V

ERROR

1

5 mm

43

Mounting in series

5 6

The module can be aligned without interspace. Use the jumper
plug to connect bus and supply voltage when the modules are
mounted in series.

The max imum quan tity of m odules connec ted in line is limite d
to 15 or to a maximum power c onsumpt ion of 2 Amp s (AC or
DC) pe r connec tion to the power supply. For any similar b lock
of additional modules a se parate connect ion to the p ower
supply is mandatory.

BMT-DI4

BACnet MS/TP

1+1- L+ 2-2+ L-

BMT-DI4

BACnet MS/TP

1+1- L+ 2-2+ L-

9. Software Description

Device Object

Property Remark / Value RW
Object_Identifier device, default instance: 421000 + Network-Address RW-E

Object_Name

Obj ec t_Ty pe DEVICE (8) R
System_Status OPERATIONAL (0) R
Vendor_Name “BTR Netcom GmbH” R
Vendor_Identifier 421 R
Model_Name “BMT-DI 4” R
Description max. 127 Bytes, default “” RW-E
Location max. 63 By tes, default “” RW-E
Firmware_Revision “1.3” R
Application_Software_Version “1. 0” R
Protocol_Version 1 R
Protocol_Revision 12 R

Protocol_Services_Supported

Protocol_Object_Types_Supported DEVICE, BINARY_INPUT, GROUP R
Object_List [8] device, binary-input 1…4, group 1…3 R
Max_APDU_Length_Accepted 480 R
Segmentation_Supported NO_SEGMENTATION (3) R
APDU_Time out 10000 R
Number_Of_APDU_Retries 3 R
Device_Address_Binding - R
Database_Revision 0 R
Max_Master 0…127, de faul t 127 RW-E
Max_Info_Frames 1…255, default 1 RW-E

Active_COV_Subscriptions

R: Read Proper ty, W: Write Proper ty, -E: Storage in EEPROM / Flash

max. 63 B ytes,
default “BMT-DI4_” + Net work-Address (Hexadecimal)

read-property, write-property, subscribe-cov, who-has, who-is, device-communication­control, reinitialize-device

max. 6 Subscriptions, for binary-input 1…4,
Confirmed / Unconfirme d, Lifetime = 0…65535 sec.

RW-E

R

R

METZ CONNECT GmbH | Im Tal 2 | 78176 Blumberg | Germany
Phone [phone] | Fax [phone]
Mounting instruction see www.metz-connect.com