"Profiplug" is a device projected and produced by T&T Systems. It converts transmitted data from devices in MODBUS RTU standard into data in Profibus DP standard, enabling the access of measurement results into Profibus DP network.
Profiplug gets required data from a Modbus RTU slave device, storing them and making them available to the Profibus Master. This one cyclically takes those data and makes them available for the high level software. Moreover the profiplug is able to send some data (e.g. configuration parameters) from the master to the slave device. The communication engines (both Profibus and Modbus) are completely indipendent; in this way the performance of the Profibus side is not limited by the lower speed of the Modbus side.
The device is small, cheap, easy to install and to use. It is provided with a user-friendly configuration software. A step by step procedure allows an easy and fast connection with a wide range of Modbus RTU slave devices.
TECHNICAL DEDAILS
Comunicazione Profibus Side
ProfibusDP-connection
Interface
9-pin D-sub connector (female)
Tranfer Method
RS-485 Half-duplex
Transfer Cable
Shielded twisted pair
Electrical Insulation
Optoinsulated
Communication mode
Profibus DP
Address
1 to 126
baud Rate
9.6 kBaud to 93.75 kBaud
Communication Modbus Side
Modbus Connection RS232
Interface
Vertical connecting terminal pitch 5,08 mm
Tranfer Method
RS-232, Half-duplex
Transfer Cable
3 wire (Tx, Rx and signal ground)
Electrical Insulation
N.A.
Modbus Connection RS485
Interface
Vertical connecting terminal pitch 5,08 mm
Tranfer Method
RS-485, Half-duplex
Transfer Cable
3 wire (A, B and signal ground)
Electrical Insulation
N.A.
Communication mode
Modbus RTU
Address
1 to 247
baud Rate
9.6 kBaud to 38.4 KBaud
SW/HW Details
Processor
HC S08
Internal RAM
4 kByte
Flash
60 kByte
Firmware
Aggiornabile via BDM
Power Supply
24 Vac
Size
Version for fixing screws
8.6 x 6.3 x 3.5 Cm
Version for DIN EN 50022 rail mounting
conforms to DIN 43880 3 modules wide (17.5 mm x 3). 8,95 x 5.25 x 6.9 Cm
The device is small, cheap, easy to install and to use.