Omron V780 Series User Manual page 274

7 Modbus/TCP Communications
GET MULTI-READER/WRITER STATUS
 Function
This command is used to check the status of the Multi-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
Transaction identifier
X
Byte-9
Reader/Writer 0
(Master Reader/Writer)
2 bytes
Byte-17
Reader/Writer 4
(Slave Reader/Writer 4)
2 bytes
7 - 122
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
Register number (D500 hex) indicating the Multi-Reader/Writer status obtained
Number of words (0008 hex) of the Multi-Reader/Writer status to be obtained
Byte-2 Byte-3
Protocol identifier
X 0000 hex
Byte-10 Byte-11
Multi-Reader/Writer Status
Reader/Writer 1
(Slave Reader/Writer 1)
2 bytes
Byte-18 Byte-19
Multi-Reader/Writer Status
Reader/Writer 5
(Slave Reader/Writer 5)
2 bytes
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Description
Byte-4 Byte-5
Field length
0013 hex
Byte-12 Byte-13
Reader/Writer 2
(Slave Reader/Writer 2)
2 bytes
Byte-20 Byte-21
Reader/Writer 6
(Slave Reader/Writer 6)
2 bytes
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Byte-8 Byte-9 Byte-10
Register address Word count
D500 hex 0008 hex
Byte-6 Byte-7
Unit identi- Function
fier code
FF hex 03 hex
Byte-14 Byte-15
Reader/Writer 3
(Slave Reader/Writer 3)
2 bytes
Byte-22 Byte-23
Reader/Writer 7
(Slave Reader/Writer 7)
2 bytes
Byte-11
Byte-8
Byte count
10 hex
Byte-16
Byte-24