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IntesisBox

®

 BACnet/IP Server - Modbus RTU Master 

User’s Manual r14 eng

 

 

 

 

 

© Intesis Software S.L. - All rights reserved 

This information is subject to change without notice

 

 

IntesisBox

®

 

is a registered trademark of Intesis Software SL

 

 

URL 
Email 
tel 

  http://www.intesis.com                                          

[email protected] 
+34 938047134 

12 / 27 

 

 

The use of DC power supplies, floating or with the negative terminal connected to 
earth. 

Never use a DC power supply with the positive terminal connected 

to earth

.  

 

The use of AC power supplies only if they are floating and not powering any other 
device. 

4.2  Connect to Modbus 

 
Connect the communication cable coming from the Modbus network to the port marked as 
Modbus of IntesisBox (Figure 4.1). Two methods to connect to the Modbus network can be 
used: 

 

The  RS485  port  if  the  network  is  RS485  2-wire.  Connect  the  +  and  the  –  to  the 
respective ports in the slave devices (polarity matters) 
 

 

The RS232 port if the connection is point to point to one single slave.  

 

IntesisBox 

 

Modbus RTU 

slave

1

 

DB9 M 

RS-232 

DB9 F 

TX 

 

RX 

RX 

 

TX 

GND 

 

GND 

 

Table 4.1 

Modbus RS232 cable pinout 

 
How  to  check  if  there  is  communication  with  the  Modbus  bus  is  explained  in  the 
LinkBoxBacnet Manual (section 5). 
 

4.3  Connect to BACnet 

 
Connect the communication cable coming from the network hub or switch to the ETH port 
(Figure 4.1) of IntesisBox. The cable to be used depends on where the IntesisBox is being 
connected: 
 

 

Connecting directly to a BACnet/IP device:  crossover Ethernet UTP/FTP  CAT5 cable  
 

 

Connecting to a hub or switch of the LAN of the building: a straight Ethernet UTP/FTP  
CAT5 cable  

 
In  case  there  is  no  response  from  the  BACnet  devices  to  the  frames  sent  by  IntesisBox, 
check  that  they  are  operative  and  reachable  from  the  network  connection  used  by 
IntesisBox. Check the IntesisBox Ethernet interface sending Pings to its IP address using a 
PC connected to the same Ethernet network.  
 

4.4  Connect to PC (LinkBoxBacnet) 

 
This  action  allows  the  user  to  have  access  to  configuration  and  monitoring  of  the  device 
(more  information  can  be  found  in  the  LinkBoxBacnet  User  Manual  [section  5]).  Two 
methods to connect to the PC can be used: 
 

                                           

1

 Check your Modbus device’s user’s manual provided by its respective manufacturer to know more details about pinout. 

Summary of Contents for IBOX-BAC-MBRTU-100

Page 1: ...IntesisBox BACnet IP Server Modbus RTU Master User s manual Issue Date 17 12 2012 r14 eng...

Page 2: ...ument is furnished under a license agreement or nondisclosure agreement The software may be used only in accordance with the terms of those agreements No part of this publication may be reproduced sto...

Page 3: ...eway for the integration of Modbus RTU slave devices into BACnet IP control systems Models available for this gateway with their following Order codes IBOX BAC MBRTU 100 Tiny model supporting connecti...

Page 4: ...1 2 Functionality 6 1 3 Capacity of IntesisBox 7 2 Interfaces 8 2 1 BACnet 8 2 2 Modbus 8 3 Quick Setup 10 4 Connection 11 4 1 Power device 11 4 2 Connect to Modbus 12 4 3 Connect to BACnet 12 4 4 Co...

Page 5: ...r use of the word gateway not meaning IntesisBox BACnet IP Server Modbus RTU Master will be specifically indicated The aim of this integration is to make accessible Modbus system signals and resources...

Page 6: ...from BACnet are immediately written in the associated register of the corresponding Modbus slave device Every one of the Modbus registers in the slave devices is associated to a BACnet object with th...

Page 7: ...mum number of BACnet subscribers accepted by the gateway Number of BACnet subscriptions COV requests 220 1000 6000 Maximum number of BACnet subscriptions COV requests accepted by the gateway Type of M...

Page 8: ...5 is used to define the Modbus and BACnet related parameters on each of the datapoints defined in IntesisBox 2 1 BACnet The IntesisBox integrates all the Modbus devices in a single BACnet device The c...

Page 9: ...ation parameters of IntesisBox s Modbus interface baud rate data bits stop bits parity are fully configurable to adapt to any slave device Of course IntesisBox and all the slave devices connected to t...

Page 10: ...in section 5 2 Install IntesisBox in the desired installation site DIN rail mounting inside a metallic industrial cabinet connected to ground is recommended 3 Power up and connect the communication ca...

Page 11: ...et IP Server Modbus RTU Master hardware Console cable Standard DB9F DB9M cable 1 8 meter long Installation sheet containing a link to the LinkBoxBacnet software and this manual 4 1 Power device The fi...

Page 12: ...2 TX GND 5 GND Table 4 1 Modbus RS232 cable pinout How to check if there is communication with the Modbus bus is explained in the LinkBoxBacnet Manual section 5 4 3 Connect to BACnet Connect the commu...

Page 13: ...intesis com 34 938047134 13 27 Ethernet Using the ETH port Figure 4 1 of IntesisBox How to check connectivity is explained in section 4 3 Serial cable To connect the device to the PC the serial cable...

Page 14: ...stallation sheet supplied with the IntesisBox In this section only the specific project configuration for IntesisBox BACnet IP Server Modbus RTU Master is going to be explained The External Protocol i...

Page 15: ...onfiguration parameters Figure 5 3 BACnet IP interface Configuration IP Enter the IP address for the gateway supplied by the network administrator NetMask Enter the IP NetMask for the gateway supplied...

Page 16: ...mmunication Console window once connected to the gateway IntesisBox_Bacnet_Modbus 100 Tiny model IntesisBox_Bacnet_Modbus A Basic model IntesisBox_Bacnet_Modbus B Extended model Frimware version selec...

Page 17: ...o communicate to Up to 254 devices For every Modbus device defined the following properties must be entered Name Enter the device name optional just for identification purposes Slave Enter the slave n...

Page 18: ...tom in the devices list Modbus Code Description Modbus function code to be used by IntesisBox to read to write or to read write the point in the slave device Values 0 Communication Error 1 Read digita...

Page 19: ...d10K uns Integer N as 4 16 bit integers A B C and D where N A 10 0003 B 10 0002 C 10 000 D 15 32 bits Mod10K sig as the unsigned but the MSb represents the sign 16 48 bits Mod10K sig as the unsigned b...

Page 20: ...e Text edit Frac Description Fractional part to consider for the point s value when read write Some devices encode for example temperature values integer fractional part in common 2 bytes Modbus regis...

Page 21: ...r can be automatically assigned by LinkBoxBacnet when saving the configuration section 5 1 4 Restrictions All the object instance numbers for objects of the same type must be different Edit mode Text...

Page 22: ...configure read write points First of all is important to take into account that different names for Modbusfunction codes are used in technical literature depending on the manufacturer of the Modbus de...

Page 23: ...lling cycle and whenever a new value for the point is received from BACnet the new value will be written in the Modbus slave device using function code 05 3 If the Modbus function code to use for read...

Page 24: ...USE this option for a brand new configuration not previously running in the gateway and therefore not yet integrated into the BACnet system b Select Yes for configurations previously running in the ga...

Page 25: ...IntesisBox is a registered trademark of Intesis Software SL URL Email tel http www intesis com info intesis com 34 938047134 25 27 5 Once in the configuration window again click on exit The configura...

Page 26: ...ot permitted Mounting Wall DIN rail EN60715 TH35 Modbus RTU ports 1 x Serial EIA232 DB9 male DTE SELV 1 x Serial EIA485 Plug in screw terminal block 2 poles SELV BACnet IP port 1 x Ethernet 10Base T R...

Page 27: ...ntesisBox is a registered trademark of Intesis Software SL URL Email tel http www intesis com info intesis com 34 938047134 27 27 7 Dimensions Free space recommended to install the device into a cabin...

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