protech SI-W109 User manual

USER
MANUAL
SI-W109
Multi-Functional I/O Module
SI-W109 M3

SI-W109
Multi-Functional 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 Mar. 2020. You may not reproduce or
transmit in any form or by any means, electronic, or mechanical,
including photocopying and recording.
DISCLAIMER
This user’s manual 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 to take
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-W109
may have high
electrical voltage. We strongly recommend that only qualified
engineers are allowed to service and disassemble SI-W109. If any
damages should occur on SI-W109 and are caused by
unauthorized servicing, it will not be covered by the product
warranty.

Contents
SI-W109 SERIES USER MANUAL
Page: i
Contents
Revision History ............................................................................................ iv
1Introduction ......................................................................................... 1-1
1.1 SI-W109 Introduction ................................................................. 1-2
1.2 Applications ................................................................................ 1-2
1.3 User Manual Structure ............................................................... 1-3
2Getting Started .................................................................................... 2-1
2.1 System Architecture ................................................................... 2-2
2.2 SI-W109 Overview ..................................................................... 2-3
2.3 Specifications ............................................................................. 2-5
2.3.1 SI-W109 Specifications....................................................... 2-5
2.3.2I/O Specifications ................................................................ 2-6
2.4 About SI-W109 I/O Module ........................................................ 2-7
2.5 Block Diagram ..........................................................................2-10
2.6 Quick Start................................................................................ 2-11
2.7 Safety Precautions ................................................................... 2-12
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 Analog Output Channel Jumper Settings................................... 3-5
3.2.1 Channel AO0 Voltage or Current Type Selection (JP3)...... 3-5
3.2.2 Channel AO1 Voltage or Current Type Selection (JP4)...... 3-6

Contents
3.3 Analog Input Channel Jumper Settings ..................................... 3-7
3.3.1 Channel AI0 Voltage or Current Type Selection (JP8)........ 3-7
3.3.2 Channel AI1 Voltage or Current Type Selection (JP7)........ 3-8
3.3.3 Channel AI2 Voltage or Current Type Selection (JP5)........ 3-9
3.3.4 Channel AI3 Voltage or Current Type Selection (JP6)......3-10
3.4 Application Wiring .................................................................... 3-11
3.4.1 I/O Wire Connection.......................................................... 3-11
3.4.2 Power Supply Wire ...........................................................3-13
3.4.3 Communication Wiring...................................................... 3-14
3.5 Mounting Support.....................................................................3-15
3.5.1 Installing DIN-Rail Mount .................................................. 3-15
3.5.2 Installing Wall Mount ......................................................... 3-16
3.6 Default Settings........................................................................3-17
3.7 Technical Support.....................................................................3-18
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 0x03 – Read Analog Output Channel Value ........ 4-9
4.2.4 Function 0x04 – Read Analog Input Channel Value .........4-10
4.2.5 Function 0x05 – Force Coil...............................................4-13
4.2.6 Function 0x06 – Write Analog Output Channel Value ......4-14
4.2.7 Function 0x41 – Read Module Setting .............................4-16
4.2.8 Function 0x42 – Write Module Setting..............................4-17

Contents
SI-W109 SERIES USER MANUAL
Page: iii
4.3 Address Mapping ..................................................................... 4-18
Appendix A Exploded Diagrams.................................................A-1
SI-W109 Assembly Exploded Diagram ....................................................A-2

Revision History
SI-W109 SERIES USER MANUAL
Page: iv
Revision History
The revision history of SI-W109 User Manual is described below:
Version No.
Revision History
Page No.
Date
M3
•Added Jumper Settings
information.
3-5 to 3-10
2020/3/9
•The contents of Section 4.3
Address Mapping have been
updated.
4-18 to 4-22
M2
•In Section 4.2.7 Functional 0x41 –
Read Module Setting, the contents
of Response-1 (The channel
address is 0x0000.) table have
been revised.
4-11
2020/02/11
•In Section 4.3 Address Mapping,
the firmware version has been
revised to “00-20191126”.
4-13
M1
Initial Release
-
2019/10/14

SI-W109 SERIES USER MANUAL
Page: 1-1
1 Introduction
This chapter provides the introduction for SI-W109
module, applications list as well as the framework of the
user manual.
The following topics are included:
•SI-W109 Overview
•Applications
•User Manual Structure

Chapter 1 Introduction
SI-W109 SERIES USER MANUAL
Page: 1-2
1.1 SI-W109 Introduction
Thank you for purchasing our SI-W109 Industrial IoT (IIoT) Remote I/O Module.
SI-W109 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-W109 modules can communicate with all computers and terminals.
SI-W109 Remote I/O Module has 4 channels of Analog Input, 2 channels of Analog
Output, 4 channels of Digital Input and 4 channels of Analog 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-W109 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
Building Automation
Factory Automation
Machine Automation
Remote Maintenance
Remote Diagnosis
Testing Equipment

Chapter 1 Introduction
SI-W109 SERIES USER MANUAL
Page: 1-3
1.3 User Manual Structure
Chapter 1 Introduction
This chapter gives the brief introduction of SI-W109, applications list as well as the
framework of this user manual.
Chapter 2 Getting Started
This chapter describes the system architecture and system and I/O specifications,
illustrates the physical appearances, block diagrams, I/O module as well as quick
installation guide. Read the safety reminders carefully on how to take care of
SI-W109 properly.
Chapter 3 Hardware Configuration
This chapter describes the information of pin assignment, jumper settings, application
wiring, mounting support as well as default settings. It also 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-W109.

SI-W109 SERIES USER MANUAL
Page: 2-1
2 Getting Started
This chapter describes the system architecture and system and
I/O specifications, illustrates the physical appearances, block
diagrams, I/O modules as well as quick installation guide. Read
the safety reminders carefully on how to take care of SI-W109
properly.
The following topics are included:
•System Architecture
•SI-W109 Overview
•System and I/O Specifications
•I/O Module
•Block Diagrams
•Quick Start
•Safety Precautions

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-2
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-W109 is the series of the Remote I/O Modules which are designed by Protech
Systems. The bottom side I/O of module include 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 module is the I/O channels for monitoring and control. It provide
Analog-to-Digital, Digital-to-Analog, Digital Input / Output, Relay output, Counters
and other functions.

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-3
2.2 SI-W109 Overview
Unit: mm
Front View Rear View
Top View
90
18
AO1
AO0
AGND
AI3 AI2 AI1
AI0
AGND
DI3 DI2 DI1 DI0
DO3 DO2
DO1
DO0
DGND
DO.PWR
1
1
(Y) DATA+ (G) DATA- GND.ISO (B) GND (R) +Vs
5
SI-W109
PWR R/W ERR MODBUS
Bottom View

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-4
Left Side View Right Side View
40
113.9

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-5
2.3 Specifications
2.3.1 SI-W109 Specifications
SI-W109 Specification
Communication Interface

RS-485
Baud Rate
9,600 bps ~ 115,200 bps (Max)
Communication Protocol

Modbus /RTU
Intra-module Isolation
3000V
Installation

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-W109 SERIES USER MANUAL
Page: 2-6
2.3.2 I/O Specifications
Analog Input
Channels

4
Type
0V ~ +5V, 0V ~ +10V, ±10V
±20 mA, 0~20 mA, 4~20 mA (jumper selectable)
Resolution

16-bit
Sample Rate
Normal Mode: 10Hz / Fast Mode: 200Hz
Accuracy

Normal Mode: ±0.1 %

Fast Mode: ±0.5 %
Overvoltage Protection
120V DC
Analog Output
Channels
2
Type

0V ~ +5V, 0V ~ +10V, ±10V

0 mA~+20 mA, +4 mA~+20 mA (jumper selectable)
Resolution
12-bit
Accuracy

±0.1%
Voltage Output Capability
10V @ 20mA
Current Load Resistance

500Ω
Digital Input / Counter
Channels

4
Type
Dry Contact, Source
On Voltage Level

Dry Contact, Close to GND
Off Voltage Level
Dry Contact, Open
Counters

Channels : 4
Max. Count: 32-bits (0 ~ 4,294,967,285)
Max. Input Frequency : 50 Hz

Min. Pulse Width: 10 ms
Overvoltage Protection
60V DC
Digital Output
Channels
4
Type

Source
Max. Load Current
650 mA/ channel
Load Voltage

11V ~ 40V DC
Overvoltage Protection
47V DC
Overload Protection

Yes
Short-circuit Protection
Yes
Power-on Value

Yes, Programmable

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-7
2.4 About SI-W109 I/O Module
1. Common Specification of SI-W109 Series
Communication Interface:
RS-485 (3-wire) to Host
Speed: 9600, 19200, 38400, 57600, 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 ~ 80°C (-40°F ~ 185°F)
Humidity: 20% ~ 90%

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-8
2. SI-W109 Multi-Function I/O Module
SI-W109 Module provides 4 channels Analog Input, 2 channels Analog
Output, 4 channels Digital Input / Counter and 4 Channels Digital 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. The Digital Output channels are source type
and provide short-circuit and overvoltage protection and can be
programmed for power-on values. SI-W109 series provide a
programmable input range on all analog input channels and all analog
output channels. The range of analog input is 16-bit at 0V~+5V, 0V ~ +10V,
+/-10V, 4~20mA, 0~20mA, -20~+20mA. The range of analog output is
12-bit at 0V ~ +5V, 0V ~ +10V, +/-10V, 4~20mA, 0~20mA. Voltage and
Current Input / Output are jumper selectable. This module is a
cost-effective solution for industrial measurement, monitoring and control
applications.
1
DO3 DO2 DO1 DO0
DGND
DO.PWR
18
1
(Y) DATA+ (G) DATA- GND.ISO (B) GND
(R) +Vs
5
SI-W109
PWR R/W ERR MODBUS
DI0 DI3 DI2 DI1
AGND
AI0 AI3 AI2 AI1
AGND
AO0 AO1

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-9
Channels:
•4 Analog Input Channels
•2 Analog Output Channels
•4 Digital Input / Counter Channels
•4 Digital Output Channels
Analog Input:
•Type : 0V ~ +5V, 0V ~ +10V, ±10V, ±20 mA, 0 ~ 20 mA, 4 ~ 20 mA
•Resolution:16-bit
Analog Output:
•Type : 0V ~ +5V, 0V ~ +10V, ±10V, 0 ~ 20 mA, 4 ~ 20 mA
•Resolution:12-bit
Digital Input:
•Type : Dry Contact: Source
•On Voltage Level: Close to GND
•Off Voltage Level: Open
Digital Output:
•Type : Source
•Load Voltage:11V ~ 40VDC

Chapter 2 Getting Started
SI-W109 SERIES USER MANUAL
Page: 2-10
2.5 Block Diagram
Converter
DC / DC
EEPROM
MCU
Isolation
Data
9~50V
GND
+5V
Buffer
Current
DI_3
+5V
AGND
DO_3
DO_PWR
DGND
ADC Voltage
C-V Current
AI_3
AGND
DAC
Voltage
AO_0
AO_1
AI_0
DI_0
DO_0
RS-485
Isolation
Power