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AirGate-GPRS
User Manual
29 pgs1.84 Mb0
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NOVUS AirGate-GPRS User Manual

AirGate-GPRS
INSTRUCTION MANUAL
V1.0x
INTRODUCTION ................................................................................................................................................................. 3
TYPICAL APPLICATIONS .................................................................................................................................................. 4
SPECIFICATIONS .............................................................................................................................................................. 7
CONNECTIONS AND INSTALLATION ............................................................................................................................... 8
MECHANICAL INSTALLATION ..................................................................................................................................... 8
ELECTRICAL INSTALLATIONS .................................................................................................................................... 9
SIGNAL LIGHT (LED) ....................................................................................................................................................... 13
USB DRIVER INSTALLATION .......................................................................................................................................... 14
WINDOWS 8 ............................................................................................................................................................... 14
DEFINITION AND SELECTION OF SERIAL PORT (COM) - WINDOWS ......................................................................... 19
CONFIGURATION SOFTWARE ....................................................................................................................................... 20
EQUIPMENT SOFTWARE (FIRMWARE) UPDATE .................................................................................................... 20
AIRGATE-GPRS OPERATION ......................................................................................................................................... 21
GPRS INTERFACE ..................................................................................................................................................... 21
WITHOUT A UTHENTICATION ........................................................................................................................ 21
OPEN AUTHENTICATION ............................................................................................................................... 21
NAP .................................................................................................................................................................. 21
ANALOG OR DIGITAL INPUT ..................................................................................................................................... 21
RS485 INTERFACES .................................................................................................................................................. 22
REMOTE CHANNELS ................................................................................................................................................. 23
USB INTERFACE ........................................................................................................................................................ 24
SENDING SMS – ALARMS AND STATUS ................................................................................................................. 24
DATA COMMUNICATION AND ROUTING ................................................................................................................. 25
ONE RS485 MASTER INTERFACE ................................................................................................................ 26
TWO RS485 MASTER INTERFACES ............................................................................................................. 26
MODBUS COMMANDS AND REGISTERS TABLE .......................................................................................................... 27
SUPPORTED MODBUS COMMANDS ....................................................................................................................... 27
TABLE OF HOLDING REGISTERS ............................................................................................................................ 27
DETAILS ABOUT SOME REGISTERS ....................................................................................................................... 28
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AirGate-GPRS
WARRANTY ...................................................................................................................................................................... 29
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AirGate-GPRS
Internet or cell phone based services, like data communication and text messages, are subject to failures, delays and interruptions and do not offer any guarantees of success for
s consider the failure possibility when specifying, designing or
party services that may be ceased or interrupted at any time, and it
rantee their integrity or availability for any period of time. The usage of such services can generate exceeding costs, according to the one hired with the service provider. NOVUS will not be responsible for any fixed or additional costs referring to any

INTRODUCTION

Ideal for machine to machine (M2M) telemetric applications, the AirGate-GPRS allows for the supervision of a network with Modbus serial communication for more than one master. One of the masters can be remote, communicating using a TCP/IP connection on GPRS using the cloud. Another master can be locally connected supervisory software. The second RS485 interface can be configured as a Modbus slave, allowing a third master, such as a local IHM, to access the slaves, or as a Modbus master, allowing a new branch of the network with more slaves communicating. The routing of Modbus packets between the interfaces ensures the original performance of the network, even with other functionalities turned on. Besides the gateway functionality, the AirGate-GPRS signals monitored alarms of Modbus registers of the slaves connected to one of the interfaces.
these services. Alway building a monitoring, alarm or control system based on these services. NOVUS will not be responsible for third­cannot gua
service usage. Avoid using prepaid and pay-per-use plans, either for data or text-messaging, since these
plans can bring severe performance limitations that are not easily predicted.
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AirGate-GPRS

TYPICAL APPLICATIONS

Below are examples of some AirGate-GPRS applications:
1. Remote monitoring without local monitoring
With this ap p li c at io n, t he AirGate-GPRS allows remote access to the data of the Modbus RTU network using the cellular network (GSM/GPRS) and the sending of alarm and status messages (SMS).
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AirGate-GPRS
2. Remote monitoring with local monitoring
In this application, AirGate-GPRS is inserted in a Modbus network that needs local supervision (often it is an existing Modbus network). Besides performing the role of a USB-RS485 converter, it allows remote access to data from the Modbus RTU network using the cellular network (GSM/GPRS) and the sending of alarm and status messages (SMS).
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AirGate-GPRS
3. Remote monitoring with double local monitoring
In this application, the AirGate-GPRS is inserted into a Modbus network that needs local supervision of two Modbus masters: normally a Supervisory software (SCADA) and an IHM or local CLP. Not only does it allow for the use of two masters in the same network due to the capacity for routing the packets, it allows for remote access to data of the Modbus RTU network using a cellular network (GSM/GPRS) and the sending of alarm and status messages (SMS).
4. Remote monitoring using only SMS
In this application, the AirGate-GPRS can either be or not be inserted in a Modbus network. The monitoring of the desired variables is made only by text messages that state the periodic status of a few variables and alarm type conditions.
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AirGate-GPRS

SPECIFICATIONS

Power Supply: 10 to 35 Vcc. Maxim um consumption: 150 mA @ 24 V. Environmental Conditions: Operation Temperature: -10 to 50 °C. Relative Humidity: 80 % up to 30 °C. For
temperatures higher that 30 °C, lower 3 % per °C.
Internal use. Installation category II. Pollution level II. Altitude < 2000 m. Dimensions: 114 x 99.5 x 17.5 mm Weight:
• Without antenna: 114 g
• With antenna: 174 g
Enclosure: PA66, with metallic attachment for 35 mm DIN track. Internal protection against polarity inversion of the power supply voltage. Wire section used: A WG 28 a 12. Recommended torque: 4 kgf·cm. Analog Entries:
The types of entry signals accepted by AirGate-GPRS and their minimum measurement bands are selected in the Configuration software and are listed in the following table.
TYPE OF INPUT MEASUREMENT RANGE EXACTNESS
Linear 4 to 20 mA Configurable ± 1.0 % (F.E.) *
Linear 0 to 10 V Configurable ± 1.0 % (F.E.) *
F.E. = Scale Background = Span (*) Note: he background scale is in re gard s to the i npu t of th e sens or ’ s sig na l and no t the con figu re d re co mmen ded range.
Table 01 – List of signals accepted by AirGate-GPRS
Although the analog inputs can recommend a bit beyond the limits of the configured range, the specification is not guaranteed outside the range.
Impedance of the analog channel input:
• mA: 150 Ω + 1.5 V
• V: 670 kΩ
Digital Entries:
• Logical level “0”: from 0 to 0.8 Vdc
• Logical level “1”: from 2 to 6 Vdc
GPRS Interface:
GSM/GPRS Technology, class 8 to 12 (GRRS device class B) Quad Band GSM operation range (850 MHz, 900 MHz, 1800 MHz and 1900 MHz) Output power:
• 1 W (GSM 1800/1900)
• 2 W (EGSM 850/900)
RF Tx Power: +30 dBm RF Rx Sensibility: bether than -100 dBm Output for antenna GSM: impendency 50 Ω, SMA plug
USB Interface:
Mini-B type USB connector. Compatible with USB 3.0, 2.0 and 1.1. Isolation of 600 V between the USB interface and the rest of the circuit (power, RS485 and analog/digital inputs).
Certifications: ANATEL (1534-13-7089)
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AirGate-GPRS

CONNECTIONS AND INSTALLATION

MECHAN IC AL INST ALLATION

The AirGate-GPRS has its own cabinet to be installed on a 35 mm track. For the installation on the track, the metallic hook should be placed on the base and pressed against the track.

DIMENSIONS

Fig. 01 – Dimensions of the AirGate-GPRS

OPENING THE AIRGATE-GPRS

In order to open the AirGate-GPRS, you must press the orange lockers located on both sides of the enclosure and pull the frontal cover very carefully, just like shown in Fig. 02.
Fig. 02 – Opening the AirGate-GPRS
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AirGate-GPRS
. If the
positive conductor of the power source is turned on, even for an instant, to one of the

ELECTRICAL INSTALLATIONS

The AirGate-GPRS has power source connectors for inputs and RS485 serial communication interfaces.
Be careful when connecting the power source wires to the AirGate-GPRS communication connection terminals, the AirGate-GPRS can be damaged.
Fig. 03 - Power source and communication connections of the AirGate-GPRS
Fig. 04 shows the required electrical connections. Terminals 1, 2, and 3 belong to the first interface RS485/Modbus
(RS485-1), while terminals 4, 5, and 6 belong to the second interface RS485/Modbus (RS485-2). Terminals 7, 8, and 9 are for the inputs (analog or digital) of the equipment. Terminals 10, 11, and 12 are used to feed the AirGate-GPRS.
Fig. 04 – Electrical connections of the AirGate-GPRS

INSTALLATION RECOMMENDATIONS

• Input conductors should travel the system plant separately from the output and supply conductors, in grounded electrical ducts.
• The power source of the instruments should come from a network that is appropriate for the instrumentation.
• The use of RC FILTERS (47 Ω and 100 nF, in series) parallel to the contactor coils and solenoids that are near or
connected to the equipment is recommended.
• In control applications, it is essential to consider what can happen when any part of the system fails. The relays of output RL1 and RL2, used as alarms, do not guarantee total protection.
• Section of used wires: minim u m gauge of 0.14 mm².

POWER SOURCE

Terminals 11 and 10 must be connected to the AirGate-GPRS power supply. Power supply polarity should be noticed.

RS485

The RS485 interfaces of the AirGate-GPRS have terminals for communication with 3 wires, including the common. The wiring to the Modbus networks will depend whether each interface is configur ed to operate as a master or slave.
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