VPFlowScope M
24
© 2016 Van Putten Instruments BV | MAN-VP-MPRO-UK | Revision:1602 | Date:20-10-2016
7.4
RS485
RS485 is a serial interface that can be used to connect the transmitter to VPVision, remote
monitoring software or a building management system. The interface is standardised interface
according to standard ANSI/TIA/EIA-485-A-98.
It is important to match the communication parameters. All devices using this serial interface need
to communicate using the same settings. Various settings are available to match any building
management system.
Communication settings
The RS485 communication settings can be changed with VPStudio. Below shows the available
options
Baud rate: 9600 | 19200 | 38400 | 57600
Stop bits: 1 | 2
Parity: None | Even | Odd
Factory default is: 38400, 1, none
The communication protocol is
Modbus RTU
. The Modbus table is identical to the Modbus TCP
interface. More information can be found in the
Modbus chapter 9
.
7.5
USB
The USB interface can be used to connect the transmitter to your computer. With the VPStudio
software you are able to configure the device, or to read out recorded data. See the
VPStudio
chapter 11
for more information.
The mini USB connector can be found on the bottom side of the transmitter. Remove the nut to
reveal the connector. Note: Make sure you tighten the nut to remain IP rating. Check the o-ring on
any defects as this may affect the IP rating.
When the USB connector is applied, the transmitter will be powered. All transmitter functionality is
available. External power needs to be applied to power the VPSensorCartridge.
Install USB driver
When the transmitter is connected to the computer, please check the driver. The driver might have
been installed automatically. If not, the driver needs to be installed manually. The driver can be
found in the download area on our website
www.vpinstruments.com/downloads
. The driver for the
VPFlowScope M must be used.
7.6
Ethernet
The transmitter has Ethernet functionality that can be used to communicate via Modbus over TCP,
or to access the built in web server. A cable with M12 4 pin connector on one side and a RJ45
Ethernet connector on the other side can be used to connect the transmitter to a network or
computer.
See chapter 10.5
for more information.
The default Ethernet settings can be found in the table below. These settings can be changed with
VPStudio, via the web server or by using the key pad.
Default settings
IP address
192.168.1.100
Net mask
255.255.255.0
Gateway
192.168.1.254
Web server port*
80
Modbus port*
502
*Values are fixed and can not be changed
