Omron V780 Series User Manual page 218

7 Modbus/TCP Communications
GET MODBUS/TCP COMMUNICATIONS CONDITIONS
 Function
This command is used to check the Modbus/TCP communications conditions of the Reader/Writer.
 Command Format
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Register address The register address (B200 hex) that specifies the Modbus/TCP communications conditions
Word count
 Response Formats
• Normal Response
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Byte count
Modbus/TC
communica-
tions conditions
• Error Response
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Exception code
 Execution Examples
Execution When the Following Modbus/TCP Communications Conditions Are Set in the
Reader/Writer
Port number: 502
TX: 000000000006FF03B2000001
RX: 000000000005FF030201F6
7 - 66
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
The number of words of the Modbus/TCP communications conditions to read (0001 hex)
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0005 hex
The number of bytes in the Modbus/TCP communications conditions that were
read (02 hex)
Port num- Gives the Modbus/TCP communications port number in 4-digit hexadecimal.
ber
Example: 01F6 hex (502)
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-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 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
B200 hex 0001 hex
Default set-
ting
Byte-8 Byte-9 Byte-10
Byte Modbus/TC com-
count munications condi-
tions
Port number
02 hex 2 bytes
Byte-8
Excep-
tion code
1 byte