Omron V780 Series User Manual page 270

7 Modbus/TCP Communications
GET TIME INFORMATION
 Function
This command is used to check the time information from the Reader/Writer.
 Command Format
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Register address
Word count
 Response Formats
• Normal Response
Byte-0 Byte-1 Byte-2
Transaction Protocol identi-
identifier
X X
Parameter
Byte count
Time information
• Error Response
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Exception code
7 - 118
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
The register address (D400 hex) that specifies the time information
The number of words in the time information to read (0002 hex)
Byte-3 Byte-4 Byte-5
Field length
fier
0000 hex 0007 hex
The number of bytes in the time information that was read (04 hex)
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-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0003 hex
For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for
Error Completion on page 7-7.
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Description
Byte-6 Byte-7 Byte-8
Unit Function Byte
identifier code count
FF hex 03 hex 04 hex
Description
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 83 hex
Description
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Byte-8 Byte-9 Byte-10 Byte-11
Register address Word count
D400 hex 0002 hex
Byte-9 ... Byte-12
Time information
4 bytes
Actual
time Hour: 0 Minutes:
onds: 0
flag:*1 to 23 0 to 59
0/1
1 1 1
byte byte byte
Byte-8
Excep-
tion code
1 byte
Sec-
to 59
1
byte