GN-9289 User Manual
Page 45 of (70)
G-series GN-9289 Modbus TCP_UDP Rev. 1.01.docx
8.3.
MODBUS Special Register Map
The special register map can be accessed by function code 3, 4, 6 and 16. Also the special register map
must be accessed by read/write of every each address (one address).
8.3.1.
Adapter Identification Special Register (0x1000, 4096)
Address
Access
Type, Size
Description
0x1000(4096)
Read
1word
Vendor ID = 0x02E5(741), Crevis. Co., Ltd.
0x1001(4097)
Read
1word
Device type = 0x000C, Network Adapter
0x1002(4098)
Read
1word
Product Code = 0x9000
0x1003(4099)
Read
1word
Firmware revision, if 0x0101, revision 1.01
0x1004(4100)
Read
2word
Product unique serial number
0x1005(4101)
Read
String
upto 34byte
Product name string (ASCII)
“GN-9289,Modbus/TCPAdapter,GBUS”
0x1006(4102)
Read
1word
Sum check of EEPROM
0x1010(4112)
Read
2word
Firmware release date
0x1011(4113)
Read
2word
Product manufacturing inspection date
0x101E(4126)
Read
7word
- 1word
- 1word
- 1word
- 1word
- 1word
- 2word
15word
- 2word
- 2word
- 2word
- 3word
- 1word
- 1word
- 1word
- 1word
- 2word
Composite Id of following address
* RTU mode
0x1100(4352), Modbus RS232 Node. (Fixed 0x0001)
0x1000(4096), Vendor ID
0x1001(4097), Device type
0x1002(4098), Product code
0x1003(4099), Firmware revision
0x1004(4100), Product serial number
*TCP mode
0x1050(4176), IP address
0x1051(4177), Subnet mask
0x1052(4178), Gateway
0x1053(4179), Ethernet physical address (MAC ID)
0x1000(4096), Vendor ID
0x1001(4097), Device type
0x1002(4098), Product code
0x1003(4099), Firmware revision
0x1004(4100), Product serial number
- String Type consists of valid string length (first 1word) and array of characters