42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
### Omron MX2
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1. Please refer to the [OmronMX2 - Modbus setup guide](../vendor/omron/P641-E1-01_EGuide_CJ_Mod485_OMRON_3G3MX2-V1.pdf)(Section 7.2.2)
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In case the terminal labels mismatch the documenation, please use `SN` for (A-) and `SP` for (B+)
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2. The firmware expects the VFD at **Slave-Address 10** !
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Additionally, please check the [user manual](../vendor/omron/I570-E2-02B.pdf)
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### Omron E5 - PID
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### TCP interface
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To set the target temperature to 100 Degc on PID1, the complete message for Modbus TCP would be
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``` 01 06 00 11 00 64 D8 24 ```
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- ```01``` : slave id
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- ```06``` : Modbus verb / function code, in this case **WRITE HOLDING REGISTER**
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- ```11``` : address (17)
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- ```00 64``` : value (100), 2 bytes
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- ```D8 24``` : CRC, 2 bytes. Since it's TCP, **this isn't evaluated and can be ignored** on the Controllino - PlasticHub firmware (see ['./firmware/Mudbus.cpp'](./firmware/Mudbus.cpp)).
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In order to fake a Modbus message, all we need is ``` 01 06 00 11 00 64``` but we also have to prefix it with the TCP overhead (d2 8d 00 00 00 06)
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|-- TCP Overhead----- | -------- Modbus ---- |
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**```d2 8d 00 00 00 06 ```** | ```01 06 00 11 00 64```
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In example, we can send this via Hercules :
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The TCP overhead (```d2 8d 00 00 00 06```) is created as follow:
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- ```d2 8d``` : Transaction identifier, 2 bytes
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- ```00 00``` : Protocol identifier, 2 bytes
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- ```00 06``` : Length of the message, 2 bytes
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