Protech Systems SI-W509 User manual

USER
MANUAL
SI-W509
5 Channels Digital Input and
6 Channels Relay Output
Remote I/O Module
SI-W509 M2

SI-W509
5Channels Digital Input and
6Channels Relay Output
Remote I/O Module
COPYRIGHT NOTICE & TRADEMARK
All trademarks and registered trademarks mentioned herein are the
property of their respective owners.
This manual is copyrighted in Feb. 2020. You may not reproduce
or transmit in any form or by any means, electronic,
or mechanical, including photocopying and recording.
DISCLAIMER
This user’smanual is meant to assist users in installing and setting up
the system. The information contained in this document is subject to
change without any notice.
CE NOTICE
This is a class A product. In a domestic environment this product may
cause radio interference in which case the user may be required totake
adequate measures.

FCC NOTICE
This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
You are cautioned that any change or modifications to the equipment
not expressly approve by the party responsible for compliance could
void your authority to operate such equipment.
WARNING: Some internal parts of SI-W509
may have high
electrical voltage. We strongly recommend that only qualified
engineers are allowed to service and disassemble SI-W509. If any
damages should occur on SI-W509 and are caused by
unauthorized servicing, it will not be covered by the product
warranty.

Contents
Contents
Revision History ............................................................................................ iii
1Introduction ......................................................................................... 1-1
1.1 SI-W509 Introduction ................................................................. 1-2
1.2 Applications ................................................................................ 1-2
1.3 User Manual Structure ............................................................... 1-3
2Getting Started .................................................................................... 2-1
2.1 System Architecture ................................................................... 2-1
2.2 SI-W509 Overview ..................................................................... 2-2
2.3 Specifications ............................................................................. 2-4
2.3.1 SI-W509 Specifications....................................................... 2-4
2.3.2 I/O Specifications ................................................................ 2-5
2.4 About SI-W509 I/O Module ........................................................ 2-6
2.5 Block Diagram ............................................................................ 2-9
2.6 Quick Start................................................................................ 2-10
2.7 Safety Precautions ................................................................... 2-11
3Hardware Configuration ..................................................................... 3-1
3.1 PIN Assignment.......................................................................... 3-2
3.1.1 I/O Channel Connector (JCN1)........................................... 3-3
3.1.2 RS-485 and Power Connector (JCN2) ............................... 3-4
3.2 Application Wiring ...................................................................... 3-5
3.2.1 I/O Wire Connection............................................................ 3-5
3.2.2 Power Supply Wire ............................................................. 3-6
3.2.3 Communication Wiring........................................................ 3-7
SI-W509 SERIES USER MANUAL Page: i

Contents
SI-W509 SERIES USER MANUAL
Page: ii
3.3 Mounting Support....................................................................... 3-8
3.3.1 Installing DIN-Rail Mount .................................................... 3-8
3.3.2Installing Wall Mount ........................................................... 3-9
3.4 Default Settings........................................................................3-10
3.5 Technical Support..................................................................... 3-11
4MODBUS RTU Protocol ...................................................................... 4-1
4.1 Command Format ...................................................................... 4-2
4.1.1 READ Command ................................................................ 4-2
4.1.2 WRITE Command............................................................... 4-3
4.2 Function List............................................................................... 4-4
4.2.1 Function 0x01 – Read Discrete Coils ................................. 4-5
4.2.2 Function 0x02 – Read Discrete Inputs ............................... 4-7
4.2.3 Function 0x04 – Read Temperature and Humidity Value ... 4-9
4.2.4 Function 0x05 – Force Coil...............................................4-10
4.2.5 Function 0x41 – Read Module Setting ............................. 4-12
4.2.6 Function 0x42 – Write Module Setting.............................. 4-13
4.3 Address Mapping ..................................................................... 4-14
Appendix A Exploded Diagrams ................................................. A-1
SI-W509 Assembly Exploded Diagram .........................................................A-2

Revision History
SI-W509 SERIES USER MANUAL
Page: iii
The revision history of SI-W509 User Manual is described below:
Version No.
Revision History
Page No.
Date
M2
•In Section 4.2.5 Functional
0x41 – Read Module Setting, the
contents of Response-1 (The
channel address is 0x0000.) table
have been revised.
4-12
2020/02/11
•In Section 4.3 Address Mapping,
the firmware version has been
revised to “00-20191126”.
4-14
M1
Initial Release
-
2019/11/27
Revision History

SI-W509 SERIES USER MANUAL
Page: 1-1
1Introduction
This chapter provides the introduction for SI-W509
module, applications list as well as the framework of the
user manual.
The following topics are included:
•SI-W509 Overview
•Applications
•User Manual Structure

Chapter 1 Introduction
SI-W509 SERIES USER MANUAL
Page: 1-2
1.1 SI-W509 Introduction
Thank you for purchasing our SI-W509 Industrial IoT (IIoT) Remote I/O Module.
SI-W509 Series is a set of data acquisition and control modules that can be remotely
controlled by using Modbus RTU protocol. The communication interface between the
module and the host is RS-485 serial bus. The baud rate is software programmable
and transmission speeds is up to 115.2 Kbps. SI-Wx09 Series provide
Analog-to-Digital, Digital-to-Analog, Digital Input / Output, Counters and other
functions. SI-W509 modules can communicate with all computers and terminals.
SI-W509 Remote I/O Module has 5 channels of Digital Input and 6 channels of Relay
Output. All digital input channels can be used as 32-bit counters.
The RS-485 network only requires two wires, DATA+ and DATA-. A maximum of
256 SI-W509 modules can be connected to an RS-485 network, and the transmission
distance can reach up to 4000 feet. For the power requirements, the modules are
designed for standard industrial unregulated 24 VDC Power input; however, they
accept any power unit that supplies power within the range of +9 to +50 VDC.
1.2 Applications
Remote Data acquisition
Process monitoring
Industrial process control
Remote Diagnosis
Building Automation
Factory Automation
Machine Automation

Chapter 1 Introduction
SI-W509 SERIES USER MANUAL
Page: 1-3
1.3 User Manual Structure
Chapter 1 Introduction
This chapter gives the brief introduction of SI-W509, applications list as well as the
framework of this user manual.
Chapter 2 Getting Started
This chapter describes the system architecture and system andI/O specifications,
illustrates the physical appearances, block diagram,I/O module as well as quick
installation guide. Read the safety reminders carefully on how totake care of
SI-W509 properly.
Chapter 3 Hardware Configuration
This chapter describes the information ofpin assignment, application wiring,
mounting support as well as default settings.Italso provides technical support
information.
Chapter 4 MODBUS RTU Protocol
This chapter describes the command format,function list and address mappings
information for MODBUS RTU protocol.
Appendix A Exploded Diagrams
This appendix provides the exploded diagrams and part numbers for SI-W509.

SI-W509 SERIES USER MANUAL
Page: 2-1
2Getting Started
This chapter describes the system architecture and system and
I/O specifications, illustrates the physical appearances, block
diagram, I/O modules as well as quick installation guide. Read
the safety reminders carefully on how to take care of SI-W509
properly.
The following topics are included:
•System Architecture
•SI-W509 Overview
•System and I/O Specifications
•I/O Module
•Block Diagram
•Quick Start
•Safety Precautions

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-1
2.1 System Architecture
The System Architecture diagram is illustrated as below:
Host Computer/ Edge Controller Gateway
Any computer, terminal or Edge controller Gateway can transfer data with Modbus
RTU Protocol by using RS-232 or RS-485 serial interfaces. When only RS-232 is
available, an RS-232 to RS-485 converter is required to convert the signals to the
correct RS-485 data format. The Modbus protocol is easy to integrate Modbus
compatible equipment into monitoring and control applications.
Remote I/O Module
SI-Wx09 is the series of the Remote I/O Modules which are designed by Protech
Systems. The bottom side I/O of the module includes RS-485 interface and power
supply. The interface of communication is the RS-485 with 3-wire unregulated
connector. The modules accept any power unit that supplies power within the range of
+9 to +50 VDC. For the standard power unit, they are designed for standard industrial
unregulated 24 VDC Power input.
The top side I/O of the module is the I/O channels for monitoring and control. It
provides Analog-to-Digital, Digital-to-Analog, Digital Input / Output, Relay output,
Counters and other functions.

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-2
2.2 SI-W509 Overview
Unit: mm
Front View Rear View
Top View
Bottom View

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-3
Left Side View Right Side View

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-4
2.3 Specifications
2.3.1 SI-W509 Specifications
SI-W509 Specification
Communication Interface

RS-485
Baud Rate
9,600 bps ~ 115,200 bps (Max)
Communication Protocol

Modbus / RTU
Intra-module Isolation
3000V
Mounting Support

DIN-Rail, Wall Mount
LED Indicator
Power LED, Green
R/W LED, Orange
Error LED, Red
Modbus LED, Green
I2C Interface

Temperature/ Humidity Sensor Module
Power Supply
9 ~ 50V DC In from terminal block
System Weight

220g
Dimensions (W x H x D)
113.9 x 90 x 40mm
Certificate

FCC/CE
Environment
Operating Temp
erature
(with airflow)
-25°C ~ 75°C (-13°F ~ 167°F)
Storage Temperature
-40°C ~ 85°C (-40°F ~ 185°F)
Humidity
20% ~ 90%

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-5
2.3.2 I/O Specifications
Digital Input/ Counter
Channels

5
Type
Wet Contact, Sink/ Source
On Voltage Level

Wet Contact, +3.5 ~ +50 V DC
Off Voltage Level
Wet Contact, +1V DC Max
Input Impedance

10KΩ, 0.5W
Counter
Channels : 5
Max. Count: 32-bits (0 ~ 4,294,967,285)
Max. Input Frequency : 50 Hz
Min. Pulse Width: 10 ms
Overvoltage Protection

70V DC
Power-on Value
Yes
Power Relay Output (Form A)
Channels
4
Contact Rating

6A @ 35V DC

6A @ 240V AC
Min. Contact Load
100mA @ >= 12V
Contact Material

AgNi 90/10
Operation Time
5 ms (typical)
Release Time

1 ms (typical)
Mechanical Endurance
30 x 106ops
Electrical Endurance

1 x 105ops
Power-on Value
Yes
Signal Relay Output (Form A)
Channels
2
Contact Rating
2A @ 30V DC
0.24A @ 220V DC

0.25A @ 250V AC
Min. Contact Load
10mA @ 20 mV
Contact Material

AgNi, Gold-covered
Operation Time
3 ms (typical)
Release Time

4 ms (typical)
Mechanical Endurance
108ops
Electrical Endurance

2 x 105ops

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-6
2.4 About SI-W509 I/O Module
1. Common Specification of SI-W509 Series
Communication Interface:
RS-485 (3-wire) to Host
Speed: 9600, 19200, 38400, 115200 bps
Maximum Communication Distance: 4000 feet (1.2km)
Power and communication LED Indicator
PWR: Power indicator with Green LED
R/W: Data Read/Write indicator with Orange LED
ERR: Error indicator with Red LED
Modbus: Modbus communication indicator with Green LED
Up to 256 I/O modules per serial port
Power Requirement
Unregulated +9 ~ +50V DC
Mechanical
Case: ABS+PC
Plug-In Screw: Strip Length : 6~7mm
Suitable Electric Wire: AWG 14~28
Environment:
EMI: FCC Class A and CE
Operation Temperature: -25°C ~ 75°C (-13°F ~ 167°F)
Storage Temperature: -40°C~ 85°C (-40°F ~ 185°F)
Humidity:20% ~ 90%

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-7
2. SI-W509 Digital Input and Relay Output I/O Module
SI-W509 Module provides 5 channels Digital Input and 6 Channels Relay
Output. For the Digital Input channels, the host computer can use digital
input channels to determine the states of safety switch and remote digital
signals or to be a counter. For the Relay Output channels, 4 channels are
Power Relay with Form A and 2 channels are Signal Relay with Form A.
This is an excellent module for ON/OFF Control or low-power switching
applications.
Channels:
•5 Digital Input Channel
•6 Relay Output Channel
Digital Input:
•On Voltage Level: Wet Contact, +3.5V ~ +50VDC
•Off Voltage Level: Wet Contact, +1V DC Max
RL5 NO
RL5 COM
RL4 NO
RL4 COM
RL3 NO
RL3 COM
RL2 NO
RL2 COM
RL1 NO
DI4 DI3
1
RL1 COM
RL0 NO
RL0 COM
DI2 DI1 DI0
DI.COM
18
1
(Y) DATA+ (G) DATA- GND.ISO (B) GND (R) +Vs
5
SI-W509
PWR R/W ERR MODBUS

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-8
Relay Output:
•Form A (Channel 0~3)
Contact Rating: 6A@ 35V DC/ 6A@240V AC
Max. Load Current: 700 mA per channel
•Form A (Channel 4, 5)
Contact Rating: 2A@ 30V DC
0.24A@220V DC
0.25A@250V AC
Max. Load Current: 700 mA per channel

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-9
2.5 Block Diagram
DC / DC
EEPROM
Converter
MCU
GND
9~50V +5V
RS-485 Data
Isolation
DI_4
DI_COM
DI_0
+5V
+5V
+5V PRL3_COM
SRL0_COM
SRL1_COM
SRL1_NO
SRL0_NO
PRL0_NO
PRL3_NO
PRL0_COM

Chapter 2 Getting Started
SI-W509 SERIES USER MANUAL
Page: 2-10
2.6 Quick Start
To install SI-W509 I/O module, follow the steps below:
1. Refer to Section 3.1 PIN Assignment for the pin assignment of terminal
block and Section 3.2 Application Wiring.
2. Open the Modbus utility for the host control.
3. Connect the module to the RS-485 network using the DATA+ and DATA-
(GND) terminals. If the host is only equipped with an RS-232 interface, an
RS-232 to RS-485 converter will be required. See Section 3.1 PIN
Assignment for terminal assignment.
4. Connect the pin 4 and pin 5 of the module (SI-W509) to the power supply
using the GND and +Vs terminals. See Section 3.1 PIN Assignment for
terminal assignment. Note that the voltage supplied to the module should
be in the range of +9 to +50 VDC.
5. Use the Modbus RTU Protocol and configure the module by using the
following commands:
Read the Baud Rate Setting from the Holding Register (0x0020) by
sending “01 41 00 20” command to the module. Check the settings of
the module and utility are the same.
To read data from Input channels by sending function code 02h to
read data from input channels.