Manufacturers
ACROMAG ESW-MBLIB
Description
Acromag's Modbus C Library software greatly simplifies development of programs to interface with Acromag's BusWorks® and EtherStax® Ethernet I/O products. The library also supports any standard Ethernet Modbus slave device that communicates via Modbus TCP/IP or UDP/IP protocol. This utility is ideal for developers that are unfamiliar with Modbus protocol or the framing of TCP/IP or UDP/IP messages. The C library makes programming easy and portable by simply linking user code with the provided function calls (below). Most function calls require passing only a few parameters such as the IP address, Modbus register address, and register count.Ethernet Modbus C-Library Software for model numbers 9xxEN and ES21xx.
Part Number
ESW-MBLIB
Price
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Manufacturer
ACROMAG
Lead Time
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Category
Ethernet, Modbus & Profibus I/O » Ethernet I/O Modules
Datasheet
Extracted Text
® Ethernet I/O: BusWorks Series ESW-MBLIB Ethernet Modbus C Library Software Universal support for five operating systems ◆ C source code provided ◆ Demo program included Example Program Description The included example program is menu-driven Acromag’s Modbus C Library software greatly to help users build Modbus TCP/IP and UDP/IP simplifies development of programs to inter- commands. Menu selections let users configure, ® ® face with Acromag’s BusWorks and EtherStax read, and write Ethernet I/O slave devices such as Ethernet I/O products. The library also supports Acromag’s BusWorks and EtherStax products. any standard Ethernet Modbus slave device that communicates via Modbus TCP/IP or UDP/IP Users may also leverage this demonstration protocol. This utility is ideal for developers that application into a tool for configuration or test are unfamiliar with Modbus protocol or the by supplying commands and/or data values in the framing of TCP/IP or UDP/IP messages. form of a text file. The program will execute each command in the text file as if it had been typed The C library makes programming easy and from the console terminal. portable by simply linking user code with the provided function calls (below). Most function Key Features & Benefits calls require passing only a few parameters such as the IP address, Modbus register address, and ■ Library of function routines simplify communi- register count. cation with I/O modules ■ Function calls provided for a variety of operat- Codes Functions ing systems 01 (01H) Read Coil (Output) Status ■ C source code supplied 02 (02H) Read Input Status ■ Demonstration program included 03 (03H) Read Holding Registers Ordering Information 04 (04H) Read Input Registers ■ Saves development time ESW-MBLIB 05 (05H) Force Single Coil (Output) ■ Ideal for use with Acromag’s BusWorks and Ethernet Modbus C Library Software (CD-ROM) 06 (06H) Preset Single Register EtherStax I/O modules 15 (0FH) Force Multiple Coils (Outputs) ■ Compatible with any standard Modbus TCP/IP 16 (10H) Preset Multiple Registers or UDP/IP device 17 (11H) Report Slave ID ■ ■ ■ ■ Tel: 248-295-0880 Fax: 248-624-9234 sales@acromag.com www.acromag.com 30765 S Wixom Rd, Wixom, MI 48393 USA – 27 –
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