Atim Cloud Wireless ACW/LW8-DINRSM User manual

ATIM Radiocommunications
Chemin des Guillets
38250 Villard-de-Lans, France
www.atim.com
[email protected]
Concerned models:
ACW/LW8-DINRSM
ACW/SF8-DINRSM
ATIM Cloud Wireless
Modbus PLC connector
DINRSM / RS485
User Guide

1
ATIM_ACW-DINRSM_UG_EN_V2.8
TABLE OF CONTENTS
Document version history .......................................................................................................................................................2
Disclaimer.................................................................................................................................................................................2
Trademarks and copyright.......................................................................................................................................................2
Declaration of compliance.......................................................................................................................................................3
Environmental recommendations ..........................................................................................................................................3
a. Environment 3
b. Radio 4
Technical specifications ...........................................................................................................................................................5
Installation................................................................................................................................................................................6
c. Positioning 6
d. Connecting the modem 7
c. Push button 8
d. Interpreting the indicator lights 8
Normal start-up behavior........................................................................................................................................................9
Parameter settings and configuration ....................................................................................................................................9
a. Parameter settings 9
b. Configuration via USB 12
Transmitting information on IoT networks (Sigfox/LoRaWAN)...........................................................................................17
a. Keep-alive frame 17
b. Periodic frame (or triggered by pressing button) 17
c. Error frame 17
Receiving information from IoT networks (Sigfox/LoRaWAN).............................................................................................19
a. Parameters 19
b. Commands 23
Troubleshooting.....................................................................................................................................................................29
a. The modem cannot be configured via USB or the configuration tool page does not refresh 29
b. Radio data not received 29
c. Modem LED is not flashing 29
Technical support...................................................................................................................................................................30

2
ATIM_ACW-DINRSM_UG_EN_V2.8
Document version history
Version
Date
Description
Author
Concerned
software version
1.0
25/09/2016
Document creation
AM
1.1
25/11/2016
Corrections
FR
1.2
13/02/2017
Images updates
AM
1.3
09/05/2017
Addition of concerned product references
YM
1.4
11/10/2017
Update of the front image
AM
1.4
2.0
12/12/2017
Modbus master only
Downlink configuration
AM
3.1.0
2.1
04/01/2018
Corrections
FR
3.1.0
2.2
16/01/2018
Keepalive frame addition
AM
3.2.0
2.3
09/02/2018
Translation corrections
YM
3.2.0
2.4
30/03/2018
Correction of values for configuring the number of
bits of serial link.
AM
3.2.0
2.7
23/05/19
Connections board corrections
SC
3.2.3
2.8
25/02/2020
- Downlink command addition for Modbus
writing/reading
- Increase of the number of Modbus requests from
32 to 49.
YL
3.3.5
Disclaimer
The information contained in this document is subject to change without warning and does not represent a
commitment on the part of ATIM.
Trademarks and copyright
ATIM, ACW ATIM Cloud Wireless®and ARM Advanced Radio Modem®are registered trademarks of ATIM SARL in
France. The other trademarks mentioned in this document are the property of their respective owners.

3
ATIM_ACW-DINRSM_UG_EN_V2.8
Declaration of compliance
All ACW Atim Cloud Wireless®products comply with the regulatory requirements of the R&TTE Directive
(1999/5/EC), article 3:
1 SAFETY (Article 3.1a of the 1999/5/EC Directive)
NF EN60950-1 Ed. 2006/A1:2010/A11:2009/A12:2011 (health)
EN62479: 2010 (power <20mW) or EN62311:2008 (power > 20mW)
2 Electromagnetic Compatibility (Article 3.1b of the 1999/5/EC Directive)
EN 301489-3 v1.4.1, EN 301489-1 V1.9.2
3 Efficient use of the radio frequency spectrum (Art.3.2 of the 1999/5/EC Directive)
ETSI EN300 220-2 v2.4.1 and EN300 220-1 v2.4.1
Environmental recommendations
a. Environment
Respect the temperature ranges for storage and operation of all products. Failing to respect these guidelines could
disrupt device operation or damage the equipment.
Follow the instructions and warnings provided below to ensure your own safety and that of the environment and to
protect your device from any potential damage.

4
ATIM_ACW-DINRSM_UG_EN_V2.8
Waste disposal by users in private households within the European Union. This symbol appears on a product or
its packaging to indicate that the product may not be discarded with other household waste. Rather, it is your
responsibility to dispose of this product by bringing it to a designated collection point for the recycling of
electrical and electronic devices. Collection and recycling waste separately at the time you dispose of it helps
to conserve natural resources and ensure a recycling process that respects human health and the environment.
For more information on the recycling center closest to your home, contact your closest local government office,
your local waste management service or the business from which you purchased the product.
b. Radio
Modems in the ACW line are radio-communication modems that use the ISM (industrial, scientific and medical) bands,
which may be used freely (at no cost and with no authorization required) for industrial, scientific and medical
applications.
General hazard –Failure to follow the instructions presents a risk of equipment damage.
Electrical hazard –Failure to follow the instructions presents a risk of electrocution and physical injury.
WARNING: do not install this equipment near any source of heat or any source of humidity.
WARNING: for your safety, it is essential that this equipment be switched off and disconnected from mains
power before carrying out any technical operation on it.
WARNING: the safe operation of this product is ensured only when it is operated in accordance with its intended
use. Maintenance may only be performed by qualified personnel.

5
ATIM_ACW-DINRSM_UG_EN_V2.8
Technical specifications
Dimensions
90 x 57 x 17.9 mm
Antenna
External via SMA connector
Temperature
-20°C to +55°C (operation)
-40°C to +70°C (storage)
Mounts to
DIN rail
Power supply
1x power supply, 10-30 V DC
Frequency
865 –870 MHz
Power
25 mW (14 dBm)
Transfer rate
Sigfox: 100 bps
LoRaWAN: 300 bit/s to 10 kbit/s
Current draw (24 V)
Sigfox:
Current draw (24 V)
Tx mode (max)
40 mA
Tx mode (max)
Rx mode (max)
30 mA
Rx mode (max)

6
ATIM_ACW-DINRSM_UG_EN_V2.8
Space requirements and mounting
Dimensions indicated in mm.
‘Circuit-breaker’-style ACW DIN modems are mounted on a DIN rail.
Installation
c. Positioning
This version was designed for installation in an electrical box made of PVC or metal. If the box is made of insulating
material (PVC, ABS, fibreglass), you can also simply use a small ½ wave whip antenna: Ref. ATIM ANT868-12FSC. This
antenna must be firmly screwed onto the SMA connector and positioned vertically, preferably pointing upward.
➔If a metal box is used, the antenna must be positioned outside the box in order to ensure good radio
performance and avoid the ‘Faraday cage’ effect.
For optimal results, we recommend that the antenna be positioned high up and at least 1 metre away from all metallic
objects.

7
ATIM_ACW-DINRSM_UG_EN_V2.8
d. Connecting the modem
Terminal blocks
Antenna (SMA)
Before connecting the product to mains power, connect the antenna: either a ½ wave whip
antenna (ref. ATIM ANT868-12FSC) or an external antenna —¼ wave (ref. ATIM ANT868-
14S4.0) with a metallic ground plane or ½ wave (ref. ATIM ANT868-12S3.8) —or a roof
antenna with a low-loss cable (ref. ATIM ANT868-BZ or ANT868-08).
WARNING
It is mandatory to connect the antenna before powering the product. Failure to do so may cause the product to malfunction
and become unusable.
Power supply (bottom terminal block)
The ACW-DINRSM must be supplied with a DC power supply between 10 V and 30 V that can provide a
minimum current of 100 mA.
RS485 (top terminal block)
The maximum cable length will depend on the type of serial link and the baud rate in use. A maximum length
of 1 meter is appropriate for all use cases.
For an RS485 connection, you have the option to activate the 120Ω termination resistor:
•upward position (SMA side): resistor activated
•downward position (USB side): resistor deactivated
USB
The USB connector allows you to configure the ACW with a PC and a USB cable. See section « Configuration
via USB » for more details.
Name
Description
Input / Output
GND
Earth/Ground (Gnd)
Earth
10/30V
Power supply between 10 V
and 30 V
Input (power supply)
NC
Not connected
/
Tx/BZ
RS485 BZ
Bidirectional/differential
Rx/AY
RS485 AY
Bidirectional/differential
NC
Not connected
/

8
ATIM_ACW-DINRSM_UG_EN_V2.8
NOTE
To configure the device, it must be connected to power at 10/30 V DC.
c. Push button
The push button located on the front panel of the housing can be used to initiate a Modbus/Radio cycle. This lets you
test the Modbus configuration and radio connectivity. If no Modbus frame is configured, a “keep-alive”frame will be
sent.
d. Interpreting the indicator lights
The indicator lights are used to display the state of operation of the DINRSM. In general, a GREEN light indicates
correct operation, while a RED light indicates an error.
Success or failure of an operation
Behaviour
The RED or GREEN flashes rapidly for about ½ second. A RED light indicates failure, while a GREEN light indicates
success.
Event
•When switching on the device (after a brief delay) to indicate it has started up correctly.
•After a Modbus frame if the response fails (RED light).
USB connection or radio activity
When a radio message is sent over the network, the GREEN light flashes every half-second while it is being sent. This
may last for up to one minute. This light flashes in a similar manner when the product is connected via USB.
Modbus communication
During Modbus communication, the GREEN light remains on throughout the entire process. If a Modbus error is
detected, the RED light will flash rapidly.

9
ATIM_ACW-DINRSM_UG_EN_V2.8
Normal start-up behavior
When the device is switched on, after a brief delay, the GREEN light flashes rapidly for about ½ second to indicate
that the device has started up correctly. The periodic frame is then sent out, based on the statement period specified
in the settings. If a USB cable is connected to the DINRSM, the GREEN light will flash if that connection is in place.
Parameter settings and configuration
a. Parameter settings
Serial link parameters
The RS serial link can be configured with different parameters. Not all parameter settings are compatible with one
another.
The configurable parameters are as follows: 8N1, 8N2, 8E1, 8O1, 7N2, 7O1, 7O2, 7E1, 7E2.
Type of serial link
•Only RS485
Serial link baud rate
•1200 bps
•2400 bps
•4800 bps
•9600 bps
•19200 bps (default)
•38400 bps
•57600 bps
•115200 bps
Serial link parity
•No parity (default): N
•Even: E
•Odd: O
Number of bits for the serial link
•7 bits
•8 bits (default)
Number of stop bits for the serial link
•1 bit (default)
•2 bits