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<< Click to Display Table of Contents >> Manual > Device Connection Guide > WAGO > Connection Procedure (Ethernet) > WAGO I/O System 750 Series |
About the connection example
Please see below for an example of connection settings for this driver.
Applicable models etc. |
explanation |
This is an example of connection settings with WAGO 750-842.
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*For connections with other compatible models, please refer to the above for setup.
Device List
The compatible devices are as follows (see here for how to view the device list).
device |
keyword |
Start address |
explanation |
unit |
reading |
Writing |
Coil (0x) |
C |
000001 |
Decimal |
bit |
○ |
○ |
Input Status (1x) |
I |
100001 |
Decimal |
bit |
○ |
× |
Input Registers (3x) |
IR |
300001 |
Decimal |
word |
○ |
× |
Holding Registers (4x) |
HR |
400001 |
Decimal |
word |
○ |
● |
In addition, input/output devices are mapped to the addresses in the table above depending on the IO card configuration.
device |
address |
Data Types |
Contents |
coil |
000001～ |
bit |
Contact output (DO) |
Input Status |
100001～ |
bit |
Contact output (DI) |
Input Register |
300001～ |
integer |
Analog Input (AI) |
Holding Register |
400001～ |
integer |
Analog Output (AO) |
412289 to 424576 |
integer |
Internal memory (%MW0 to %MW12287) |
How to set up connected devices
For WAGO Ethernet Bus Couplers and Ethernet Programmable Bus Controllers that have a WEB-based management system (WBM) built into the unit, you can set the IP address and other settings from the WBM settings screen. WBM can be displayed by specifying the IP address of the target unit from a WEB browser such as Internet Explorer. For detailed information such as the unit's default IP address, login user, and password, please refer to the WAGO product manual.
To change the IP address of an Ethernet bus coupler model that is not compatible with WBM, you must use the "WAGO BootP Server" tool provided by WAGO (750-341, 750-841, 750-342, 750-842, etc.). This software is available as freeware and can be downloaded from the Wago Japan website. For details, see the "WAGO BootP Server Instruction Manual" on the Wago Japan website.
Model-specific address specifications (write-protected area)
Please note that the accessible address area of each model differs depending on the model. For details on the accessible address area of each model, refer to the Modbus register mapping specifications in the product manual that comes with the target model.
Depending on the model, there may be address areas that should not be written to from the upper level. If data is written to these areas, operation is not guaranteed.
Write-prohibited area
Model |
Data Type |
Address specified by our company |
Lower Address |
750-341 750-841 750-842 750-871 |
coil |
012289～013816 |
12288～13815 |
Holding Register |
424577 to 425341 |
24576～25340 |
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750-352 750-880 750-881 |
coil |
032769～034296 |
32768 to 34295 |
Holding Register |
424577 to 425341 |
24576～25340 |
Points to note when accessing across different address areas
When accessing a WAGO unit, if tags that point to Modbus addresses in different address areas are defined in the same folder, a communication error may occur. When accessing across different address areas, please register tags in separate folders for each address area to be accessed.
Example: 750-881
•Actual output area (1) ・・300513～300768 →Create under U01.F01.
•PFC input area: 300769 to 301024 -> Create under U01.F02.
*The above example is an example of registration divided into "F01" and "F02".