ICP DAS USA tM-752N Series User manual

ICP DAS CO., LTD. User Manual, Ver. 1.3, Apr. 2018, Page: 1
tM-752N Series
User Manual
Tiny Addressable Serial Converter Ver. 1.3/ Apr. 2018
S
UPPORTS
Module includes tM-7521 and tM-7522.
WARRANTY
All products manufactured by ICP DAS are warranted against defective
materials for a period of one year from the date of delivery to the
original purchaser.
WARNING
ICP DAS assumes no liability for damages consequent to the use of this
product. ICP DAS reserves the right to change this manual at any time
without notice. The information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, nor for any infringements of patents or other rights of third
parties resulting from its use.
COPYRIGHT
Copyright © 2017 by ICP DAS. All rights are reserved.
TRADEMARK
Names are used for identification only and may be registered
trademarks of their respective companies.
CONTACT US
If you have any question, please feel to contact us. We will give you
quick response within 2 workdays.
Email: [e-mail], [e-mail]

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TABLE OF CONTENTS
PACKING LIST...................................................................................................................................................... 4
MORE INFORMATION ........................................................................................................................................ 4
1.INTRODUCTION ................................................................................................................................................ 5
1.1 ADDRESSABLE RS-232 CONVERTER....................................................................................................... 6
1.2 SELF-TUNER ASIC INSIDE ..................................................................................................................... 6
1.3 ONBOARD 1KBQUEUE BUFFER ............................................................................................................. 6
1.4 WEB SERVER........................................................................................................................................ 7
2. HARDWARE INFORMATION ......................................................................................................................... 8
2.1 SPECIFICATIONS.................................................................................................................................... 8
2.2 FEATURES ............................................................................................................................................ 9
2.3 SELECTION GUIDE ................................................................................................................................. 9
2.4 FRONT VIEW ...................................................................................................................................... 10
2.5 DIMENSIONS....................................................................................................................................... 13
2.6 PIN ASSIGNMENTS .............................................................................................................................. 15
2.7 WIRING NOTES................................................................................................................................... 16
3. SETTING UP THE TM-752N ......................................................................................................................... 17
STEP 1: CONNECTING THE POWER AND HOST PC ................................................................................................... 17
STEP 2: RUN THE ESEARCH UTILITY ..................................................................................................................... 19
STEP 3: SEARCH FOR THE TM-752N MODULE ....................................................................................................... 20
STEP 4: CONFIGURE THE NETWORK SETTINGS........................................................................................................ 20
STEP 5: TESTING YOUR TM-752N MODULE........................................................................................................... 22
4. WEB CONFIGURATION................................................................................................................................. 23
4.1 LOGGING ON TO THE TM-752N WEB SERVER.................................................................................................. 23
4.2 HOME PAGE.................................................................................................................................................. 25
4.3 NETWORK SETTING ....................................................................................................................................... 26
4.3.1 Network and Miscellaneous Settings................................................................................................. 26
4.3.2 IP Address Selection ........................................................................................................................... 26
4.3.3 General Configuration Settings ......................................................................................................... 29
4.3.4 Restore Factory Defaults ................................................................................................................... 30
4.4 SERIAL PORT SETTINGS ....................................................................................................................... 31
4.4.1 Port1 Settings..................................................................................................................................... 31
4.5 FILTER ............................................................................................................................................... 33
4.5.1 Filter Settings ..................................................................................................................................... 33

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4.6 CHANGE PASSWORD............................................................................................................................ 34
4.7 LOGOUT ............................................................................................................................................. 34
5. COMMAND SETS............................................................................................................................................ 35
5.1 COMMAND SETS TABLE ....................................................................................................................... 35
5.1.1 $AAA[addr] ................................................................................................................................... 36
5.1.2 $AABN[baud rate] ........................................................................................................................ 37
5.1.3 $AADN[data-bit]........................................................................................................................... 39
5.1.4 $AAPN[parity-bit]......................................................................................................................... 41
5.1.5 $AAON[stop-bit] ........................................................................................................................... 43
5.1.6 $AA6[name] .................................................................................................................................. 45
5.1.7 $AA7.............................................................................................................................................. 46
5.1.8 $AAC[delimiter] ............................................................................................................................ 47
5.1.9 [delimiter]AA[bypass] .................................................................................................................. 49
5.1.10 $AAKV....................................................................................................................................... 50
5.1.11 $AATN[CrLfmode].................................................................................................................... 52
5.1.12 $AAM ........................................................................................................................................ 54
5.1.13 $AAU......................................................................................................................................... 55
5.1.14 $AAJN[timeout]........................................................................................................................ 57
5.1.15 $AAEV....................................................................................................................................... 59
6. TYPICAL APPLICATIONS ............................................................................................................................. 61
6.1 APPLICATION 1............................................................................................................................................. 61
6.2 APPLICATION 2............................................................................................................................................. 62
6.3 APPLICATION 3............................................................................................................................................. 63
APPENDIX A: TROUBLESHOOTING................................................................................................................. 64
A1. HOW DO IRESTORE THE WEB PASSWORD FOR THE MODULE TO THE FACTORY DEFAULT PASSWORD?..................... 64
APPENDIX B: REVISION HISTORY................................................................................................................... 66

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PACKING LIST
The shipping package includes the following items:
One tM-752N series hardware module
One printed Quick Start Guide
One DC Connector Power cable
MORE INFORMATION
Documentation
http://ftp.icpdas.com/pub/cd/tinymodules/napdos/tM-752N/document/
Firmware
http://ftp.icpdas.com/pub/cd/tinymodules/napdos/tM-752N/firmware/
eSearch Utility
http://ftp.icpdas.com/pub/cd/tinymodules/napdos/software/esearch/
tM-752N Product Page
http://www.icpdas.com/root/product/solutions/industrial_communication/gateway/tm-
752n.html
Note:
If any of these items are missing
or damaged, please contact the
local distributor for more
information. Save the shipping
materials and cartons in case
you want to ship the module in
the future.
QuickStart

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1. Introduction
Nowadays, a great number of RS-232 devices for both automation and information transfer
are being used in industrial applications, and linking these devices is very important in the
modern situation. The devices are usually located at a distance from the Host PC, meaning
that linking via multiple serial cards is inefficient. ICPDAS tM-752N series products have been
developed to provide an effective link between multiple RS-232 devices via a single RS-485
network. This network protocol offers stability, reliability and simple cabling while delivering
a low–cost, easy-to-maintain product.
To achieve maximum space savings, the tM-752N is offered in an amazingly small form-
factor that enables it to be easily installed anywhere, even directly attached to a serial
device or embedded into a machine. The tM-752N features a powerful 32-bit MCU, offers
true IEEE 802.3af-compliant (classification, Class 1) Power-over-Ethernet (PoE) functionality
using a standard category 5 Ethernet cable that allows it to receive power from a PoE switch
such as the NS-205PSE. If there is no PoE switch available on site, the tM-752N can accepts
power input from a DC adapter.

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1.1 Addressable RS-232 Converter
Most RS-232 devices don’t support individual device addressing. To overcome this limitation,
ICPDAS tM-752N series modules assign a unique address to any RS-232 device installed on
an RS-485 network. When the Host PC sends a command to the RS-485 network a device
address can be attached to the command. The destination tM-752N module will then
remove the address field and pass the remaining commands to the destination RS-232
device. Responses from the local RS-232 devices will be returned to the Host PC via the tM-
752N module.
1.2 Self-Tuner ASIC Inside
The built-in Self-Tuner ASIC on an RS-485 port can automatically detect and control the
send/receive direction of the RS-485 network. Consequently, there is no need for application
programs to be concerned with direction control of the RS-485 network.
1.3 Onboard 1KB Queue Buffer
tM-752N series modules are equipped with a 1KB queue buffer for its local serial port. All
input data can be stored in the queue buffer until the Host PC has time to read it. These
features allow the Host PC to be linked to thousands of RS-232 devices without any loss of
data.

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1.4 Web Server
Web server enables configuration of the tM-752N via a standard web browser interface, e.g.
Internet Explorer, Firefox or Mozilla, etc. This means that it is easy to check the configuration
of thetM-752Nvia web interface instead of using console commands, thereby reducing the
user’s learning curve.

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2. Hardware Information
2.1 Specifications
Model tM-7521 tM-7522
System
CPU
32-bit MCU
Communication Interface
Ethernet
10/100 Base-TX, 8-pin RJ-45 x 1,
(Auto-negotiating, Auto-MDI/MDIX, LED indicator)
PoE (IEEE 802.3af, Class 1)
COM1
2-wire RS-485
2-wire RS-485
COM2
5-wire RS-232
3-wire RS-232
COM3
-
3-wire RS-232
Self-Tuner
Yes, automatic RS-485 direction control
RS-485
Bias Resistor
Yes, 10 KΩ
Node
32 (max.)
UART
16c550 or compatible
COM Port Format
Baud Rate
115200 bps Max.
Data Bit
5, 6, 7, 8
Parity
None, Odd, Even, Mark, Space
Stop Bit
1, 2
General
Power Input
PoE: IEEE 802.3af, Class 1
DC jack: +12 ~ 48 VDC
Power Consumption
0.05 A @ 24 V DC
Connector
10-Pin Removable Terminal Block x 1
Mounting
DIN-Rail
Flammability
Fire Retardant Materials (UL94-V0 Level)
Operating Temperature
-25° ~ 75°C
Storage Temperature
-30° ~ 80°C
Humidity
10 ~ 90% RH, non-condensing

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2.2 Features
Built-in “Addressable RS-232 Converter” firmware
Contains a powerful 32-bit MCU
10/100 Base-TX Ethernet, RJ-45 x1
(Auto-negotiating, auto MDI/MDIX, LED Indicators)
Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack
Allows automatic RS-485 direction control
Supports UDP responder for device discovery
Allows easy firmware update via the Ethernet
Built-in Web server for easy configuration
Terminal block connector for easy wiring
Tiny form-factor and low power consumption
RoHS compliant and no Halogen
Made from high-grade fire-retardant materials (UL94-V0 Level)
Cost-effective
2.3 Selection Guide
Model
CPU
Ethernet
Baud Rate
COM1
COM2
COM3
tM-7521
32-bit MCU 10/100 Base-TX,
PoE 115200 bps
2-wire
RS-485
5-wire
RS-232
-
tM-7522 2-wire
RS-485
3-wire
RS-232
3-wire
RS-232
3-Wire RS-232: RxD, TxD, GND (Non-isolated)
5-Wire RS-232: RxD, TxD, CTS, RTS, GND (No-isolated)
2-Wire RS-485: DATA+, DATA-, GND (Non-isolated)

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2.4 Front View
Here is a brief overview of the tM-752N series module components and a description.
5. J2 Connector
3. S1: System LED
Indicator
4. Operating Mode
Switch
1. Ethernet Port
2. +12 ~ +48 VDC Jack
Robust insulated
and fire retardant
case

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1. PoE and Ethernet RJ-45 Jack:
The tM-752N is equipped with a RJ-45 jack that is used as
the 10/100 Base-TX Ethernet port and features networking
capability. When an Ethernet link is detected and an
Ethernet packet is received, the Link/Act LED (Orange)
indicator will be illuminated. When power is supplied via
PoE (Power-over-Ethernet), the PoE LED (Green) indicator
will be illuminated.
2. +12 VDC ~ +48 VDC Jack:
The tM-752N is equipped with a +12 ~ +48 VDC jack that is used as
the power supply. If there is no PoE switch available on site, the
tM-752N will accept power input from a DC adapter.
3. S1: System LED Indicator:
Once power is supplied to the tM-752N, the system LED indicator will be illuminated as
follows:
Function
System LED Behavior
Running Firmware
ON
Network Ready
Flashing per 3seconds
Serial Port busy
Flashing per 0.2 seconds

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4. Operating Mode Switch:
Init Mode: Uses factory settings and allows firmware update.
Run Mode: Uses customer settings.
In the tM-752N series, the operating mode Switch is
in the Run position by default. When updating the
tM-752N firmware, the switch needs to be moved
from the Run position to the Init position. The
Switch must be returned to the Run position after
the update is complete.
Note: Requires reboot after change mode.
5. Serial COM Ports:
The numbers of serial COM Ports depend on the types of tM-752N modules. For more
detailed information regarding the pin assignments of the Serial COM ports, please refer to
Section.

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2.5 Dimensions
The following diagrams provide the dimensions of thetM-7521/tM-7522and CA-002 cable
that can be used as a reference when defining the specifications and the DC power supply
plug for any custom enclosures. All dimensions are in millimeters.
tM-7521/7522 Module:
Front View
Rear View
Top View
Bottom View
Right Side View
Left Side View

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CA-002 Cable
Pin Assignment
P1
P2
1 RED OPEN
2 BLACK OPEN
Note: Cable color: BLACK
NO
DESCRIPTION
QTY
UNIT
1 UL2464 18AWG 2C(RED/BLACK)
0D5.0 COLOR BLACK
1 PCS
2
DC PLUG 5.5*2.1
1
PCS
3
PVC:45/P BLACK
G

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2.6 Pin Assignments
1-Port 2-Wire RS-485 and 1-Port
5-Wire RS-232 Module
1-Port 2-Wire RS-485 and 2-Port
3-Wire RS-232 Module
tM-7521 Pin Assignments
tM-7522 Pin Assignments

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2.7 Wiring Notes
RS-485 Wiring Connection
Note:1. usually, you have to connect all signal grounds of RS-485 devices together to reduce
common-mode voltage between devices.
2. Twisted-pair cable must be used for the DATA+/- wires.
3. Both two ends of the cable may require a termination resistor connected across the two
wires (DATA+ and DATA-). Typically 120 Ω resisters are used.
4. The Data+ and B pins are positive-voltage pins, and Data- and A pins are negative-voltage
pins in the above figure. The B/A pins may be defined in another way depending on devices,
RS-232 Wiring Connection
Note:
1. For 3-Wire RS-232
connections, it is
recommended that unused
signals such as RTS/CTS and
DTR/DSR are shorted, since
some systems may still check
the status of CTS and DSR.
2. FGND is the frame ground
that provides a path to earth
ground for ESD protection.

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3. Setting up the tM-752N
Prepare for device:
Hub/Switch: NS-205PSE or NS-205 (optional)
Isolated RS-232 to RS-422/485 converter module: I-7520 module (optional)
Step 1: Connecting the power and Host PC
1. Check Init/Run switch is on “Run”position.
2. Connect both the tM-752N and your computer to the same sub network or the same
Ethernet Switch, and power the tM-752N on. Make sure the System LED indicator is
flashing.
+12 to +48 VDC jack Power Supply (Non-PoE)

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3. Perform a test wiring check as follows:
Wiring to RS-232
Device
Wiring to host PC
Via the RS-485 bus
PoE Power Supply

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4. Connecting to Multiple Remote RS-232 Devices as follows:
Step 2: Run the eSearch Utility
The eSearch Utility can be obtained from our FTP site:
http://ftp.icpdas.com/pub/cd/tinymodules/napdos/software/esearch/
Double-click the
eSearch.exe

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Step 3: Search for the tM-752N module
Click the “Search Servers” button to search for your tM-752N module.
Step 4: Configure the network settings
1. tM-752N series module is IP-based devices that may not be suitable for your network
using a default IP address. Therefore, you must first assign a new IP address to the tM-
752N module depending on your network settings.
Double Click