Aspar SDM-16O Manuale utente
SDM-16O
Expansion Module – 16 digital outputs
Version 1.2 User Manual
Manufactured for
SDM-16O
User Manual
Expansion Module – 16 digital outputs
User Manual Version 1.2 2 z 17
Thank you for choosing our product.
This manual will help you with proper support and proper operation of the device.
The information contained in this manual have been prepared with utmost care by our
professionals and serve as a description of the product without incurring any liability for
the purposes of commercial law.
This information does not release you from the obligation of own judgement and
verification.
e reserve the right to change product specifications without notice.
Please read the instructions carefully and follow the recommendations contained
therein.
ARNING!
Failure to follow instructions can result in equipment damage or impede
the use of the hardware or software.
SDM-16O
User Manual
1. Safety rules
•Before first use, refer to this manual
•Before first use, make sure that all cables are connected properly
•Please ensure proper working conditions, according to the device specifications
(eg: supply voltage, temperature, maximum power consumption)
•Before making any modifications to wiring connections, turn off the power supply
2. Module Features
2.1. Purpose and description of the module
The SDM-16O module is an innovative device that provides a simple and cost-
effective extension of the number of outputs in popular PLCs.
The module has 16 digital outputs. All inputs and outputs are isolated from the
logic of using optocouplers.
The module is produced in two versions with PNP and NPN outputs:
Mark Output type
SDM-16O-PNP PNP
SDM-16O-NPN NPN
This module is connected to the RS485 bus with twisted-pair wire.
Communication is via MODBUS RTU or MODBUS ASCII. The use of 32-bit ARM
core processor provides fast processing and quick communication. The baud rate is
configurable from 2400 to 115200.
The module is designed for mounting on a DIN rail in accordance with
DIN EN 5002.
The module is equipped with a set of LEDs used to indicate the status of outputs
useful for diagnostic purposes and helping to find errors.
Module configuration is done via USB by using a dedicated computer program.
You can also change the parameters using the MODBUS protocol.
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2.2. Technical Specifications
ower Supply
Voltage 10-30 VDC; 10-28VAC
Maximum Current DC: 100 mA @ 24VDC
AC: 125 mA @ 24VAC
Maximum power consumption DC: 2.4W; AC: 3VA
Digital Outputs
No of outputs 16
Max Voltage 30VDC
Max current 500mA
Output Type PNP lub NPN (w zależności od wersji)
Output protection 4A polymer fuse
Isolation 1500 Vrms
Temperature Work -10 °C - +50°C
Storage -40 °C - +85°C
Connectors
Power Supply 2 pins
Communication 3 pins
Outputs 2x 10 pins
Configuration Mini USB
Size
Height 110 mm
Lenght 62 mm
Width 88 mm
Interface RS485 Up to 128 devices
* Maximum current with active Modbus transmission, all outputs on
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2.3. Dimensions of the product
Look and dimensions of the module are shown below. The module is mounted
directly to the rail in the DIN industry standard. Power connectors, communication and
IOs are at the bottom and top of the module. USB connector configuration and
indicators located on the front of the module.
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35
110
4
8
,
5
6
2
6
42,3
91
110
88
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User Manual
3. Communication configuration
3.1. Grounding and shielding
In most cases, IO modules will be installed in an enclosure along with other
devices which generate electromagnetic radiation. Examples of these devices are relays
and contactors, transformers, motor controllers etc. This electromagnetic radiation can
induce electrical noise into both power and signal lines, as well as direct radiation into
the module causing negative effects on the system. Appropriate grounding, shielding
and other protective steps should be taken at the installation stage to prevent these
effects. These protective steps include control cabinet grounding, module grounding,
cable shield grounding, protective elements for electromagnetic switching devices,
correct wiring as well as consideration of cable types and their cross sections.
3.2. Network Termination
Transmission line effects often present a problem on data communication
networks. These problems include reflections and signal attenuation.
To eliminate the presence of reflections from the end of the cable, the cable must
be terminated at both ends with a resistor across the line equal to its characteristic
impedance. Both ends must be terminated since the direction of propagation is bi-
directional. In the case of an RS485 twisted pair cable this termination is typically
120 Ω.
3.3. Setting Module ddress in RS485 Modbus Network
The following table shows how to set switch to determine the address of the
module. The module address is set with the switches in the range of 0 to 127. Addresses
From 128 to 255 can by set via RS485 or USB.
Switch Adress
S 1 +1
S 2 +2
S 3 +4
S 4 +8
S 5 +16
S 6 +32
S 7 +64
Ex. if switches 1, 3 and 5 are on than module addres is:
Address = 1 + 4 + 16 = 21
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3.4. Types of Modbus Registers
There are 4 types of variables available in the module.
Type Beginning adress Variable Access Modbus
Command
1 00001 Digital Outputs Bit
Read & Write 1, 5, 15
2 10001 Digital Inputs Bit
Read 2
3 30001 Input Registers Registered
Read 3
4 40001 Output Registers Registered
Read & Write 4, 6, 16
3.5. Communication settings
The data stored in the modules memory are in 16-bit registers. Access to
registers is via MODBUS RTU or MODBUS ASCII.
3. .1. Default settings
You can restore the default configuration by the switch S 8 (see 3.5.2 - Restore
the default configuration)
Boud rate 19200
ariti Nie
Data bits 8
Stop bits 1
Reply Delay [ms] 0
Modbus Type RTU
3. .2. Restore the default configuration
To restore the default configuration:
•turn off the power
•turn on the switch S 8
•turn on the power
•when power and communication LED start blinking alternately than turn off the
switch S 8
Caution! After restoring the default configuration all values stored in the registers will
be cleared as well.
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3. .3. Configuration registers
Modbus Dec Hex Name Values
40003 2 0x02 Baud rate
0 – 2400
1 – 4800
2 – 9600
3 – 19200
4 – 38400
5 – 57600
6 – 115200
other – value 10
40005 4 0x04 Parity
0 – none
1 – odd
2 – even
3 – always 1
4 – always 0
40004 3 0x03 Stop Bits LSB 1 – one stop bit
2 – two stop bit
40004 3 0x03 Data Bits MSB 7 – 7 data bits
8 – 8 data bits
40006 5 0x05 Response delay Time in ms
40007 6 0x06 Modbus Mode 0 – RTU
1 – ASCII
3. .4. Watchdog function
This 16-bit register specifies the time in milliseconds to watchdog reset. If module does
not receive any valid message within that time, all Digital and Analog Outputs will be
set to the default state.
This feature is useful if there is an interruption in data transmission and for security
reasons. Output states must be set to the appropriate state in order to assure the safety
of persons or property.
The default value is 0 milliseconds which means the watchdog function is disabled.
Range: 0-65535 ms
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4. Switches
Switch Function Description
1 Module address +1
Setting module address from 0 to 127
2 Module address +2
3 Module address +4
4 Module address +8
5 Module address +16
6 Module address +32
7 Module address +64
8Restoring
default settings
Restoring default settings
(see 3.5.1 - Default settings i 3.5.2 - Restore the
default configuration).
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ON
SDM-16O
User Manual
. Front panel removing
To remove the panel and gain access to the switch, you must pry open the panel
using a thin tool (eg a small screwdriver) as in the picture below.
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