User Documentation
User Manual Managed Switches 
128 
The data map addresses of Weidmüller switches shown in the following table start from MODBUS 
address 30001 for Function Code 4. For example, the address offset 0x0000 (hex) equals MODBUS 
address 30001, and the address offset 0x0010 (hex) equals MODBUS address 30017. Note that all 
the information read from Weidmüller switches are in hex mode. To interpret the information, refer to 
the ASCII table for the translation (e.g. 0x4D = ‘M’, 0x6F = ‘o’). 
Address Offset 
Data Type 
Interpretation 
Description 
System Information 
0x0001 
1 word 
Unit ID (Ethernet = 1) 
0x0002 
1 word 
HEX 
Product Code = 0x0003 
0x0010 
20 words 
ASCII 
Vendor Name = "Weidmueller" 
Word 0 Hi byte = 'W' 
Word 0 Lo byte = 'e' 
Word 1 Hi byte = 'i' 
Word 1 Lo byte = 'd' 
Word 2 Hi byte = 'm' 
Word 2 Lo byte = 'u' 
Word 3 Hi byte = 'e' 
Word 3 Lo byte = 'l' 
Word 4 Hi byte = 'l' 
Word 4 Lo byte = 'e' 
Word 5 Hi byte = 'r' 
Word 5 Lo byte = ' ' 
Word 6 Hi byte = '\0' 
Word 6 Lo byte = '\0' 
0x0030 
20 words 
ASCII 
Product Name = “IE-SW-VL08M” 
Word 0 Hi byte = ‘I’ 
Word 0 Lo byte = ‘E’ 
Word 1 Hi byte = ‘-’ 
Word 1 Lo byte = ‘V’ 
Word 2 Hi byte = ‘L’ 
Word 2 Lo byte = ‘0’ 
Word 3 Hi byte = ‘8’ 
Word 3 Lo byte = ‘M’ 
Word 4 Hi byte = ‘\0’ 
Word 4 Lo byte = ‘\0’ 
0x0050 
1 word 
Product Serial Number 
0x0051 
2 words 
Firmware Version 
Word 0 Hi byte = major (A)   
Word 0 Lo byte = minor (B)   
Word 1 Hi byte = release (C)   
Word 1 Lo byte = build (D) 
0x0053 
2 words 
HEX 
Firmware Release Date 
For example: 
Word 0 = 0 x 0609   
Word 1 = 0 x 0705 
Firmware was released on 2007-05-06 at 09 
o’clock 
0x0055 
3 words 
HEX 
Ethernet MAC Address 
Ex: MAC = 00-01-02-03-04-05   
Word 0 Hi byte = 0 x 00   
Word 0 Lo byte = 0 x 01   










