Modbus - TRENDnet TI-PG1284i User Manual

TRENDnet User's Guide
Apply Click Apply to save your changes to the Switch.
Refresh Click Refresh to begin configuring this screen afresh.
Loop Guard Status
Port This field displays a port number.
State This field displays if the loop guard feature is enabled.
Status This field displays if the port is blocked.
Loop Recovery This field displays if the loop recovery feature is enabled.
Recovery
This field displays the recovery time for the loop recovery feature.
Time (min)

Modbus

MODBUS TCP supports different types of data format for reading. The primary four types
of them are:
Data Access Type
Bit access Physical Discrete
Inputs
Internal Bits or
Physical
Coils
Word Physical Input
access Registers
(16-bit
Physical Output
access)
Registers
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Function Function Name Note
Code
2 Read Discrete Inputs Not support
now
1 Read Coils Not support
now
4 Read Input
Registers
3 Read Holding Not support
Registers now
MODBUS Data Map and Information Interpretation of IE Switches
MODBUS base address of switches is 1001(decimal) for Function Code 4.
Address Data Interpretation
Offset Type
System Information
0x0000 1 word HEX
0x0001 16 words ASCII
0x0020 16 words ASCII
TI-PG1284i
Description
Vendor ID = 0x0b04
Vendor Name = "ABCDEFG Corp."
Word 0 Hi byte = 'A'
Word 0 Lo byte = 'B'
Word 1 Hi byte = 'C'
Word 1 Lo byte = 'D'
Word 2 Hi byte = 'E'
Word 2 Lo byte = 'F'
Word 3 Hi byte = 'G'
Word 3 Lo byte = ' '
Word 4 Hi byte = 'C'
Word 4 Lo byte = 'o'
Word 5 Hi byte = 'r'
Word 5 Lo byte = 'p'
Word 6 Hi byte = '.'
Word 6 Lo byte = '\0'
Product Name = "SWITCH"
Word 0 Hi byte = 'S'
Word 0 Lo byte = 'W'
Word 1 Hi byte = 'I'
Word 1 Lo byte = 'T'
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