Yokogawa Touch Screen GP20 User Manual
Page 335
4-15
IM 04L51B01-01EN
Using Modbus Functions (Communicating with Modbus devices)
1
2
3
4
5
App
4.5.4
Input Registers (Shared with the Modbus server/slave function)
Common Items
• The client device can only read the input registers.
• Decimal place and unit are not included. Specify them on the client device.
• Due to the different number of channels between modules, unavailable channel numbers
will exist. This will not cause a register read error, so you can read the data continuously.
• The register values for unavailable channel numbers are set to 0, and the status
information is set to SKIP.
• Channel range by model
Channel type
GX20/GP20
GX10/GP10
I/O channel
0001 to 0950
0001 to 0250
Math channel
A001 to A100
A001 to A050
I/O Channel Data
• 32-bit Signed Integer
I/O Channel Data
Input Register
Data Type
Lower bytes of the channel 0001 data
300001
32-bit signed integer
Higher bytes of the channel 0001 data
300002
|
|
Lower bytes of the channel 0050 data
300099
Higher bytes of the channel 0050 data
300100
Lower bytes of the channel 0101 data
300101
Higher bytes of the channel 0101 data
300102
|
|
Lower bytes of the channel 0150 data
300199
Higher bytes of the channel 0150 data
300200
Lower bytes of the channel 0201 data
300201
Higher bytes of the channel 0201 data
300202
|
|
Lower bytes of the channel 0250 data
300299
Higher bytes of the channel 0250 data
300300
Lower bytes of the channel 0301 data
300301
Higher bytes of the channel 0301 data
300302
|
|
Lower bytes of the channel 0350 data
300399
Higher bytes of the channel 0350 data
300400
Lower bytes of the channel 0401 data
300401
Higher bytes of the channel 0401 data
300402
|
|
Lower bytes of the channel 0450 data
300499
Higher bytes of the channel 0450 data
300500
Lower bytes of the channel 0501 data
300501
Higher bytes of the channel 0501 data
300502
|
|
Lower bytes of the channel 0550 data
300599
Higher bytes of the channel 0550 data
300600
Lower bytes of the channel 0601 data
300601
Higher bytes of the channel 0601 data
300602
|
|
Lower bytes of the channel 0650 data
300699
Higher bytes of the channel 0650 data
300700
Lower bytes of the channel 0701 data
300701
Higher bytes of the channel 0701 data
300702
|
|
Lower bytes of the channel 0750 data
300799
Higher bytes of the channel 0750 data
300800
Lower bytes of the channel 0801 data
300801
Higher bytes of the channel 0801 data
300802
|
|
Lower bytes of the channel 0850 data
300899
Higher bytes of the channel 0850 data
300900
Continued on next page
4.5 Modbus Function and Register Assignments