User's Manual
Table Of Contents
- Modbus/TCP Communications
- 7-1 Outline
- 7-2 Message Formats
- 7-3 RF Communications Command Options
- 7-4 Communications Procedure
- 7-5 Commands
- 7-6 V780 Command Details
- 7-6-1 Single-access Communications Commands
- 7-6-2 Multiaccess Communications Commands
- 7-6-3 Modbus Expansion Communications Commands
- 7-6-4 Reader/Writer Control Commands
- 7-6-5 Reader/Writer Setting Commands: Network Settings
- 7-6-6 Reader/Writer Setting Commands: Communications Settings
- 7-6-7 Reader/Writer Setting Commands: Device Settings
- 7-6-8 Maintenance Commands: Device Information
- 7-6-9 Maintenance Commands: Log Information
- 7-6-10 Maintenance Commands: RF Communications Information
7 Modbus/TCP Communications
7 - 56
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command is used to check the TCP/IP communications conditions that are set in the
Reader/Writer.
Command Format
Response Formats
• Normal Response
*1. For any IP address setting method except for using a fixed address, 00000000 hex is returned.
GET TCP/IP COMMUNICATIONS CONDITIONS
Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11
Transaction identi-
fier
Protocol identifier Field length Unit
identifier
Function
code
Register address Word count
X X 0000 hex 0006 hex FF hex 03 hex B000 hex 0007 hex
Parameter Description
Register address The register address (B000 hex) that specifies the TCP/IP communications condi-
tions.
Word count The number of words of the TCP/IP communications conditions to read (0007 hex)
Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8
Transaction identi-
fier
Protocol identifier Field length Unit
identifier
Function
code
Byte
count
X X 0000 hex 0011 hex FF hex 03 hex 0E hex
Byte-9 Byte-10 Byte-11 ... Byte-14 Byte-15 ... Byte-18 Byte-19 ... Byte-22
TCP/IP communications conditions
IP address setting
method
IP address Subnet mask Gateway address
2 bytes 4 bytes 4 bytes 4 bytes
Parameter Description Default setting
Byte count The number of bytes in the TCP/IP communications condi-
tions that were read (0E hex)
TCP/IP
commu-
nica-
tions
condi-
tions
IP address set-
ting method
Gives the IP address setting method that was read in 4-digit
hexadecimal.
0000 hex: Fixed setting
00001 hex: Obtain from BOOTP server
0002 hex: Get from BOOTP server as fixed settings
0000 hex
IP address
*1
Gives the IP address that was read in 8-digit hexadecimal.
Example: C0A801C8 hex (192.168.1.200)
C0A801C8 hex
Subnet mask
*1
Gives the subnet mask that was read in 8-digit hexadecimal.
Example: FFFFFF00 hex (255.255.255.0)
FFFFFF00 hex
Gateway
address
*1
Gives the gateway address that was read in 8-digits hexa-
decimal.
Example: C0A801FE hex (192.168.1.254)
C0A801FE hex