Moxa Technologies ioThinx 4500 45ML-5401 User manual

ioThinx 4500 (45ML) Module Series
User’s Manual
Version 1.0, July 2020
www.moxa.com/product
© 2020 Moxa Inc. All rights reserved.

ioThinx 4500 (45ML) Module Series
User’s Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
© 2020 Moxa Inc. All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
Technical Support Contact Information
www.moxa.com/support
Moxa Americas
Toll
-free: 1-888-669-2872
Tel:
[phone]
Fax:
[phone]
Moxa China (Shanghai office)
Toll
-free: 800-820-5036
Tel:
[phone]
Fax:
[phone]
Moxa Europe
Tel:
[phone]
Fax:
[phone]
Moxa Asia
-Pacific
Tel:
[phone]
Fax:
[phone]
Moxa India
Tel:
[phone]
Fax:
[phone]

Safety Symbols
DANGER
Indicates a high
-risk, imminently hazardous situation, which could result in death or serious injury.
WARNING
Indicates a moderate
-risk, potentially hazardous situation, which may result in moderate to serious injury.
CAUTION
Indicates a low
-risk, potentially hazardous situation, which may result in minor or moderate injury.
NOTE
Indicates a potential malfunction
, which will not result in damage to property.
INFORMATION
This information is important for preventing errors.

Table of Contents
1. Preface.............................................................................................................................................. 1-1
Revision History .................................................................................................................................1-2
Relevant Models .................................................................................................................................1-2
Package Contents ...............................................................................................................................1-2
How to Use This Device .......................................................................................................................1-2
Safety Precautions ..............................................................................................................................1-2
Additional Resources ...........................................................................................................................1-3
2. Product Overview.............................................................................................................................. 2-1
Technical Data ...................................................................................................................................2-2
Common Specifications ................................................................................................................2-2
45ML-5401 Specifications.............................................................................................................2-2
Appearance........................................................................................................................................2-3
Front View..................................................................................................................................2-3
Dimensions ................................................................................................................................2-3
LED Indicators....................................................................................................................................2-4
3. Hardware Installation ....................................................................................................................... 3-1
Module Specifications ..........................................................................................................................3-2
Terminal Blocks...........................................................................................................................3-2
45ML-5401.................................................................................................................................3-2
Mounting the Module...........................................................................................................................3-4
Installing the Module on the DIN Rail .............................................................................................3-4
Unmounting the I/O Module from the DIN Rail ................................................................................3-5

1
1. Preface
In this chapter, we explain the scope of and how to use this document.
The following topics are covered in this chapter:

Revision History

Relevant Models

Package Contents

How to Use This Device

Safety Precautions

Additional Resources

ioThinx 4500 (45ML) Module Series Preface
1-2
Revision History
Version Change Date
v1.0 First release. 2020-07-06
Relevant Models
This document applies to the following 45ML modules:
Model Name Features Operating Temp.
45ML-5401 4 serial ports (RS-232/422/485 3-in-1) -20 to 60°C
45ML-5401-T 4 serial ports (RS-232/422/485 3-in-1) -40 to 75°C
Package Contents
The following items are included in the product package.
•1 x 45ML module
•1 x quick installation guide (printed)
•1 x warranty card
How to Use This Device
45ML modules cannot be used as standalone devices. The modules must be used with an ioThinx 4500 Series
head/CPU module. Refer to the appropriate ioThinx 4500 Series User’s Manual for details.
NOTE
Be sure to connect both
the system and field power on the ioThinx 4530 series to the power supply; otherwis
e,
the 45ML module may
not work properly.
Safety Precautions
Observe the following safety precautions when installing or using the devices discussed in this document:
DANGER
Never work on the
device while the power source is switched on! Disconnect all power sources to the devic
e
before
performing any installation, repair, or maintenance work.
DANGER
To avoid causing electrical arcs,
make sure that all power sources have been disconnected before removing
or
replac
ing components. Electrical arcs can cause explosions in areas that contain flammable substances.
This
warning applies when:
•
Connecting or disconnecting the removable terminal block.
•
Connecting or disconnecting the device from a field-site power source.

ioThinx 4500 (45ML) Module Series Preface
1-3
WARNING
Devices
discussed in this document are sensitive to electrostatic d
ischarge, which can cause internal damage
to
and/or affect normal operation of the devices. Observe the following precautions when handling a device:
•
Before touching the device, touch a grounded object with your finger to discharge static electricity.
•
Wear an approved grounding wristband.
•
Do not touch connectors or pins on component boards.
•
Do not touch circuit components inside the equipment.
•
Use a static-safe workstation, if available.
•
Store the device in appropriate static-safe packaging when not in use.
WARNING
Check the voltage
supplied by the power source.
Make sure the voltage provided by the power source matches
the
voltage required by the device.
WARNING
Check the voltage or current of the sensors or loads.
Make sure the voltage and/or current indicated on the
sensors or loads corresponds to the specification
s of your 45ML module before you connect the device.
WARNING
Connect
your device to an earthed ground.
CAUTION
Do not use the device if the device itself is already damaged. Replace defective or damaged
devices
to ensure
th
at your devices function properly.
CAUTION
Do not attempt to repair the
device yourself. If your device needs to be repaired,
return the device to Moxa’s
customer service
department. Attempting to repair the device yourself could invalidate the device’s warranty
.
Additional Resources
Refer to following documents for additional information.
•Datasheets for the following products:
ioThinx 4530 Series
ioThinx 4500 Series (45ML) Modules
•User’s Manuals:
ioThinx 4530 Series Hardware User’s Manual
ioThinx 4530 Series Linux User’s Manual
•Programming Guide:
ioThinx 4530 Series Programming Guide

2
2. Product Overview
In this chapter, we give an overview of each of the 45ML modules.
The following topics are covered in this chapter:

Technical Data
Common Specifications
45ML-5401 Specifications

Appearance
Front View
Dimensions

LED Indicators

ioThinx 4500 (45ML) Module Series Product Overview
2-2
Technical Data
Common Specifications
Physical Characteristics
Connector:
Removable terminal block
Wiring:
18 to 24 AWG
Dimensions:
26.4 x 99 x 65.5 mm (1.04 x 3.90 x 2.58 in)
Installation:
DIN-rail mounting
Environmental Limits
Operating Temperature:
Standard Models:
-20 to 60°C (-4 to 140°F)
Wide Temp. Models:
-40 to 75°C (-40 to 167°F)
45ML-5401 Specifications
Serial Communication
Interface:
4 RS-232/422/485 ports, software selectable
Isolation:
3k VDC or 2k Vrms
Serial Communication Parameters
Parity:
None, Even, Odd
Data Bits:
7, 8
Stop Bits:
1, 2
Flow Control:
RTS/CTS (RS-232 only), XON/XOFF
Pull High/Low Resistor for RS
-485: 10 kilo-ohm
Baudrate:
300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Serial Signals
RS
-232: TxD, RxD, RTS, CTS, GND
RS
-422: Tx+, Tx-, Rx+, Rx-, GND
RS
-485-2w: Data+, Data-, GND
Note: Up to 5 45ML-5401 modules can be used at the same time.

ioThinx 4500 (45ML) Module Series Product Overview
2-3
Appearance
Front View
Dimensions
Unit: mm (inch)

ioThinx 4500 (45ML) Module Series Product Overview
2-4
LED Indicators
Label Usage No. of LEDs LED Color Description
Status Status 1 Green Steady on: Module ready
Slow Blinking: Booting up
Red Steady on: Module error
Slow Blinking: Upgrading firmware
Off Power off
Port 1, Port 2,
Port 3, Port 4
Serial connection 2 of each Green Transmitting data(Tx)
Amber Receiving data(Rx)
off Disconnected or data is not being
transmitted

3
3. Hardware Installation
In this chapter, we describe how to install the 45ML modules.
The following topics are covered in this chapter:

Module Specifications
Terminal Blocks
45ML-5401

Mounting the Module
Installing the Module on the DIN Rail
Unmounting the I/O Module from the DIN Rail

ioThinx 4500 (45ML) Module Series Hardware Installation
3-2
Module Specifications
Terminal Blocks
Wire range: 18 to 24 AWG
Wire strip length: 9 to 10 mm
Unit: mm (in.)
45ML-5401
Pin Assignment
The following tables shows the 45ML-5401 pin assignments.
Pin RS-232 RS-422 RS-485 Pin RS-232 RS-422 RS-485
1 GND GND GND 11 GND GND GND
Port 1
2 TxD1 TxD1+ Data1+
Port 3
12 TxD3 TxD3+ Data3+
3 RxD1 TxD1- Data1- 13 RxD3 TxD3- Data3-
4 RTS1 RxD1+ – 14 RTS3 RxD3+ –
5 CTS1 RxD1- – 15 CTS3 RxD3- –
Port 2
6 TxD2 TxD2+ Data2+
Port 4
16 TxD4 TxD4+ Data4+
7 RxD2 TxD2- Data2- 17 RxD4 TxD4- Data4-
8 RTS2 RxD2+ – 18 RTS4 RxD4+ –
9 CTS2 RxD2- – 19 CTS4 RxD4- –
10 GND GND GND 20 GND GND GND
Setting Up Termination Resistors
When setting up your RS-485 and RS-422 networks for long-distance communication, you should use
termination resistors to prevent signal reflections. The following figures illustrate how to properly configure
termination for a 2-wire RS-485 network, and an RS-422 network.
The 45ML-5401 Series comes with 10 kilo-ohm pull-high/low resistors built in. You will usually only need to
install termination resistors (typically 120 Ω) on the first and last devices on your network.

ioThinx 4500 (45ML) Module Series Hardware Installation
3-3
Setting Up Terminators for a 2-wire RS-485 Network
Setting Up Terminators for an RS-422 Network

ioThinx 4500 (45ML) Module Series Hardware Installation
3-4
Mounting the Module
Take the following steps to mount the device on or unmount the device from a DIN rail.
DANGER
Never in
stall the device when the power source is switched on!
Installing the Module on the DIN Rail
Step 1: Align the I/O module side by side with the head/CPU module, making sure that the upper and lower
rails are hooked together.
Step 2: After aligning the I/O module side by side with the network module, push the I/O module until it
touches the DIN rail. Next, apply more force until the module clips to the DIN rail.
NOTE
After the module is firmly attached to the DIN
rail, the module connections to the internal bus will be
established.

ioThinx 4500 (45ML) Module Series Hardware Installation
3-5
INFORMATION
With the I/O module inserted in place, the internal bus
will establish a connection through the
adjacent
module
(s).
Unmounting the I/O Module from the DIN Rail
Step 1: Use your finger to lift the release tab on the lower part of the module.
Step 2: Push the top of the release tab to latch it, and then pull the module out.
NOTE
Electrical connections for the internal bus will be disconnected when the module
is removed.
NOTE
The 45MR module can
be installed on the right side of every ioThinx 4500 S
eries head/CPU module, whereas
45ML module
s only can only be used with ioThinx 4500 series devices that have a
communication bus on the
left side of the head/CPU module. For example, ioThinx 4510
Series does not support the 45ML module.