Omron V680S-HMD63-ETN User Manual page 184

Section 7
Host Communications Specifications
Checking Reader/Writer Information
 MEASURE NOISE
Measures the noise level around the Reader/Writer.
 Query Format
Byte 0 Byte 1
Transaction
identifier
X
Parameter
Register address
Word count
 Response Format
Normal Response
Byte 0 Byte 1
Transaction
identifier
X X
Byte count
Noise information
Error Response
Byte 0 Byte 1
Transaction
identifier
X
Parameter
Exception code
 Execution Example
Measuring the Noise When the Average Is 51, the Maximum Is 62, and the Minimum Is 43
TX:000000000006FF03D2000003
RX:000000000009FF03060033003E002B
RFID System
182
User's Manual
(Modbus TCP)
Byte 2 Byte 3 Byte 4
Protocol identifier Field length
X 0000 hex 0006 hex
The register address for noise measurement (D200 hex)
The number of words in the noise information to read (0003 hex)
Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
Protocol Unit
Field length
identifier identifier
0000 hex 0009 hex FF hex
Parameter
The number of bytes in the Reader/Writer operating status that was read (04 hex)
Average Contains the average noise that was read in 4-digits hexadecimal.
0000 to 0063 hex (0 to 99)
Maximum Contains the maximum noise that was read in 4-digits hexadecimal.
0000 to 0063 hex (0 to 99)
Minimum Contains the minimum noise that was read in 4-digits hexadecimal.
0000 to 0063 hex (0 to 99)
Byte 2 Byte 3 Byte 4
Protocol identifier Field length
X 0000 hex
For details, refer to Exception Code Table in this section.
p.157
Byte 5 Byte 6 Byte 7
Unit Function
identifier code
FF hex 03 hex
Description
Byte 7 Byte 8
Function code Byte count
03 hex 06 hex
Byte 9 Byte 10
Average
2 bytes
Description
Byte 5 Byte 6 Byte 7
Unit Function
identifier code
0003 hex FF hex 83 hex
Description
Byte 8 Byte 9 Byte 10 Byte 11
Register address Word count
D200 hex 0003 hex
Byte 9 ··· Byte 14
Noise information
6 byte
Byte 11 Byte 12 Byte 13 Byte 14
Maximum Minimum
2 bytes 2 bytes
Byte 8
Exception
code
1 bytes