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 - 109
7 Modbus/TCP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
7-6 V780 Command Details
7
7-6-8 Maintenance Commands: Device Information
Function
This command is used to check the time information from the Reader/Writer.
Command Format
Response Formats
• Normal Response
• Error Response
GET TIME INFORMATION
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 D400 hex 0002 hex
Parameter Description
Register address The register address (D400 hex) that specifies the time information
Word count The number of words in the time information to read (0002 hex)
Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-12
Transaction
identifier
Protocol identi-
fier
Field length Unit
identifier
Function
code
Byte
count
Time information
X X 0000 hex 0007 hex FF hex 03 hex 04 hex 4 bytes
Actual
time
flag:*1
0/1
Hour: 0
to 23
Minutes:
0 to 59
Sec-
onds: 0
to 59
1
byte
1
byte
1
byte
1
byte
Parameter Description
Byte count The number of bytes in the time information that was read (04 hex)
Time information Gives the time information that is managed inside the Reader/Writer in 4-digit hexa-
decimal.
*1 This byte indicates whether the actual time was set from the host device.
0: The time has not been set, so the time information gives the running time since
the power supply to the Reader/Writer was turned ON.
1: The time was set, so the time information is the running time from the time set
from the host device.
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
Excep-
tion code
X X 0000 hex 0003 hex FF hex 83 hex 1 byte
Parameter Description
Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for
Error Completion on page 7-7.