YOKOGAWA GX20 User Manual

4-51
IM 04L51B01-01EN
Using Modbus Functions (Communicating with Modbus devices)
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App
Index
Continuous Channel Data Read/Write Area
The GX/GP reserves up to 50 channels of register area per module.
For example, reading 100 channels of data from 10 analog input modules through normal
input registers would be inefficient because there would be a lot of empty registers.
The “continuous channel data read/write area” is a special area that enables continuous
reading and writing by limiting the number of channels of each module to 10. It is for I/O
channels installed in the GX/GP main unit.
I/O Channel Data
• 32-bitSignedInteger
I/O Channel Data Hold Register Data Type
Lower bytes of the channel 0001 data 404001 32-bit signed integer
Higher bytes of the channel 0001 data 404002
| |
Lower bytes of the channel 0010 data 404019
Higher bytes of the channel 0010 data 404020
Lower bytes of the channel 0101 data 404021
Higher bytes of the channel 0101 data 404022
| |
Lower bytes of the channel 0110 data 404039
Higher bytes of the channel 0110 data 404040
Lower bytes of the channel 0201 data 404041
Higher bytes of the channel 0201 data 404042
| |
Lower bytes of the channel 0210 data 404059
Higher bytes of the channel 0210 data 404060
Lower bytes of the channel 0301 data 404061
Higher bytes of the channel 0301 data 404062
| |
Lower bytes of the channel 0310 data 404079
Higher bytes of the channel 0310 data 404080
Lower bytes of the channel 0401 data 404081
Higher bytes of the channel 0401 data 404082
| |
Lower bytes of the channel 0410 data 404099
Higher bytes of the channel 0410 data 404100
Lower bytes of the channel 0501 data 404101
Higher bytes of the channel 0501 data 404102
| |
Lower bytes of the channel 0510 data 404119
Higher bytes of the channel 0510 data 404120
Lower bytes of the channel 0601 data 404121
Higher bytes of the channel 0601 data 404122
| |
Lower bytes of the channel 0610 data 404139
Higher bytes of the channel 0610 data 404140
Lower bytes of the channel 0701 data 404141
Higher bytes of the channel 0701 data 404142
| |
Lower bytes of the channel 0710 data 404159
Higher bytes of the channel 0710 data 404160
Lower bytes of the channel 0801 data 404161
Higher bytes of the channel 0801 data 404162
| |
Lower bytes of the channel 0810 data 404179
Higher bytes of the channel 0810 data 404180
Lower bytes of the channel 0901 data 404181
Higher bytes of the channel 0901 data 404182
| |
Lower bytes of the channel 0910 data 404199
Higher bytes of the channel 0910 data 404200
4.5 Modbus Function and Register Assignments

YOKOGAWA GX20 Specifications

General

Brand	YOKOGAWA
Model	GX20
Category	Recording Equipment
Language	English