C: Modbus
IntelliBox-I/O 2100 User Guide
174
Local Slave
The IntelliBox itself hosts a local Modbus slave role. This local slave is addressable from
Modbus/TCP at Unit Identifier 255 (0xFF).The local slave provides access to the relay
and digital I/Os as a single data block:
Address
Name
I/O
0
XIO1
User configurable as input or output
1
XIO2
User configurable as input or output
2
Relay
Output
The server treats broadcast (Unit Identifier 0) as a request to forward to the Modbus
serial port, but does not attempt to apply the function locally.
The local slave supports the following Modbus functions:
Number
Name
1
Read Coils
2
Read Discrete Inputs
3
Read Holding Registers
4
Read Input Registers
5
Write Single Coil
6
Write Single Register
15
Write Multiple Coils
16
Write Multiple Registers
23
Read/Write Multiple Registers
43/14
Read Device Identification (Basic)
Note:
Any attempt to write to an XIO that the user has configured as an input
returns exception 4 (slave device failure).
Summary of Contents for I/O 2100
Page 1: ...Part Number 900 474 Revision B March 2012 IntelliBox I O 2100 User Guide ...
Page 36: ...5 Getting Started IntelliBox I O 2100 User Guide 36 Figure 5 1 Lantronix DeviceInstaller ...
Page 86: ...9 Services Settings IntelliBox I O 2100 User Guide 86 Figure 9 7 HTTP Configuration Page ...
Page 95: ...10 Security Settings IntelliBox I O 2100 User Guide 95 Figure 10 1 SSH Server Host Keys Page ...
Page 123: ...12 Advanced Settings IntelliBox I O 2100 User Guide 123 Figure 12 3 Email Configuration Page ...
