YOKOGAWA GX20 User Manual

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IM 04L51B01-01EN
Using Modbus Functions (Communicating with Modbus devices)
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App
Index
Unit I/O Channel Data Hold Register Data Type
• Register
Channel 0001 example
Higher bytes Lower bytes
Register 400002
Channel 0001 data
Register 400001
• There is no decimal place information.
1 When Modbus writing is performed on a channel of a DO module, a relay output occurs from the
corresponding channel of the DO module.
Write a 0 to turn the relay off.
Write a nonzero value to turn the relay on.
To enable relay output from a DO module through Modbus writing, the DO channel range type
must be set to Manual.
See page 1-76 in section 1.6.1, “Setting the Range”.
• 32-bitfloatingpoint
Unit I/O Channel Data Hold Register Data Type
GX/GP main unit Lower bytes of the channel 0001 data 401001 32-bit floating point
Higher bytes of the channel 0001 data 401002
| |
Lower bytes of the channel 0050 data 401099
Higher bytes of the channel 0050 data 401100
Lower bytes of the channel 0101 data 401101
Higher bytes of the channel 0101 data 401102
| |
Lower bytes of the channel 0150 data 401199
Higher bytes of the channel 0150 data 401200
Lower bytes of the channel 0201 data 401201
Higher bytes of the channel 0201 data 401202
| |
Lower bytes of the channel 0250 data 401299
Higher bytes of the channel 0250 data 401300
Lower bytes of the channel 0301 data 401301
Higher bytes of the channel 0301 data 401302
| |
Lower bytes of the channel 0350 data 401399
Higher bytes of the channel 0350 data 401400
Lower bytes of the channel 0401 data 401401
Higher bytes of the channel 0401 data 401402
| |
Lower bytes of the channel 0450 data 401499
Higher bytes of the channel 0450 data 401500
Lower bytes of the channel 0501 data 401501
Higher bytes of the channel 0501 data 401502
| |
Lower bytes of the channel 0550 data 401599
Higher bytes of the channel 0550 data 401600
Lower bytes of the channel 0601 data 401601
Higher bytes of the channel 0601 data 401602
| |
Lower bytes of the channel 0650 data 401699
Higher bytes of the channel 0650 data 401700
Lower bytes of the channel 0701 data 401701
Higher bytes of the channel 0701 data 401702
| |
Lower bytes of the channel 0750 data 401799
Higher bytes of the channel 0750 data 401800
Lower bytes of the channel 0801 data 401801
Higher bytes of the channel 0801 data 401802
| |
Lower bytes of the channel 0850 data 401899
Higher bytes of the channel 0850 data 401900
Continued on next page
4.5 Modbus Function and Register Assignments

YOKOGAWA GX20 Specifications

General

Brand	YOKOGAWA
Model	GX20
Category	Recording Equipment
Language	English