1preface – ProSoft Technology BM-1000-PM1K User Manual
Page 7
Preface
ProSoft Technology, Inc.
Page 7 of 36
June 10, 2015
1
Preface
Thank you for choosing the RS485 I/O Expansion System. This I/O expansion
solution is designed for use with any Modbus RS485 Master device as a
standalone system. This System follows the Modbus Application Protocol
Specification, v1.1b3, for Data Encoding with values represented in Big-Endian
format or MSB first (word order).
Digital/Discrete, Analog 4-20 mA, or Analog 0-10 V are available for use with the
RS485 I/O Expansion System. This System provides fast, accurate, reliable I/O's
and requires no software programming, making it extremely easy and quick to
use.
To interface with a RS485 Master device, the System utilizes a RS485 I/O
Expansion Module that transfers I/O signals between Modbus Master and
connected I/O Modules. The RS485 Module also distributes power to the I/O
Modules allowing for single point power termination.
This document is designed to guide you through setting up the system by
familiarizing you with the hardware, installation, wiring, and overall system
management.
ProSoft Technology
5201 Truxtun Ave, 3rd Floor
Bakersfield, CA 93309
+1 (661) 716-5100
+1 (661) 716-5101 (Fax)