READ & WRITE DATA WITH EXTERNAL DEVICES
Overview
128 |
P a g e
Copyright © 2021 BF ENTRON and/or its affiliates. All rights reserved
Product Model:
iPAK2v2
Firmware Version:
V2.10
May 22 | Doc No 700253-2
8
READ & WRITE DATA WITH EXTERNAL DEVICES
8.1
Overview
The iPAK2 welding control is designed to be integrated into an industrial automation system and controlled by an
external master device. This section is written for PLC programmers familiar with programming read/write messages via
MODBUS and EIP protocols.
The iPAK2v2 weld controller supports MODBUS communication through Ethernet or a RS-485 serial port.
The iPAK2v2 Control also supports the Common Industrial Protocol (CIP™) through Ethernet/IP (E
IP). With Ethernet/IP
communication, the iPAK2v2 control provides full data exchange with any standard EIP devices.
For information on how to configure and connect the iPAK2v2 control for your desired communication protocol refer to
the
8.2
MODBUS
The iPAK2v2 MODBUS communication exchanges both I/O data and the welding parameters with remote MODBUS
devices.
MODBUS STANDARD
Modbus is an open system and the full details are freely available at
8.2.1
Function Codes
The iPAK2v2 control supports two MODBUS function codes as shown in the table below.
Function Code
Type
Data
16
Write
Inputs or parameters
3
Read
Outputs or parameters
Table 48: MODBUS Function Codes
8.2.2
Inputs
The iPAK2 control accepts 2-word Inputs data from the Modbus Master (PLC or other Modbus devices) through Function
code 16 call. The Modbus addresses for the inputs data are Hexadecimal number #8000 and #8001 (Decimal number
32768 and 32769).
The data structure of the Inputs data is shown in
