Design, verification, and performance of a MODBUS-CAN adaptation layer

Author

Cena, Gianluca ; Bertolotti, Ivan Cibrario ; Tingting Hu ; Valenzano, Adriano

Author_Institution

IEIIT, Turin, Italy

fYear

2014

fDate

5-7 May 2014

Firstpage

1

Lastpage

10

Abstract

The MODBUS protocol is nowadays very popular at both the field and SCADA levels, thanks to its simplicity and its open nature. However, the choice of physical transmission medium is currently limited to either the low-performance TIA/EIA-485 bus (MODBUS RTU) or Ethernet (MODBUS TCP), with its topology and cabling shortcomings and additional software complexity. In this paper, a MODBUS adaptation layer for the Controller Area Network (called MODBUS CAN) is proposed, formally verified, and evaluated experimentally. The results show that, on a typical low-cost embedded system, its performance compares favorably with respect to a MODBUS TCP implementation, based on a 100Mbps Ethernet, carried out on the same system and using the same protocol stack.

Keywords

controller area networks; software metrics; system buses; transport protocols; Ethernet; MODBUS TCP; Modbus protocol; Modbus-CAN adaptation layer; SCADA; TIA/EIA-485 bus; controller area network; low-cost embedded system; software complexity; Adaptation models; Network topology; Payloads; Receivers; Topology; Transport protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Factory Communication Systems (WFCS), 2014 10th IEEE Workshop on

Conference_Location

Toulouse

Type

conf

DOI

10.1109/WFCS.2014.6837605

Filename

6837605