Contemporary Control Systems Modbus Cube I/O MR-SI4 - Manual

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
1. Description
The Modbus 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 Modbus master. The module
address, the baud rate and the parity are 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 applicable standards. Con-
formity 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
instructions 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 under-
stood 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.
3. Technical Data
Modbus Interface
Protocoll Modbus RTU
Transmission rate 1200 ... 115200 Bd
(factory setting 19200 Bd Even)
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 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
separate 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/Output
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 circuitry polarity reversal protection of
operating voltage
polarity reversal protection of supply
and bus
Display
Operating and bus activity green LED
Error indication
red LED
Status of the inputs yellow LED
5. Connection Diagram
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
A1/ +24V
A2/ GND
BUS B+
BUS A-
24V
RISC - CPU
24V AC / 170mA
24V DC / 65mA
GND, Class 2
S01+
S01
S04+
S04
S02+
S02
S03+
S03
Modbus RTU on RS-485
Digital Input Module
MR-SI4
11083913
8096/899360