Writing a Modbus Coil Register in DCE DDF .XML file

[DCIM_Support]

This question was originally posted on DCIM Support by Mosi on 2019-03-16

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Hello 

I need to write a coil register on DCE ddf .xml file.

I found setOid command for writing SNMP Oids on ddf files but I can't find the same command for writing modbus coil registers on modbus ddf files. 

Would you please help me find it?

Thanks in advance

(CID:140714683)

[DCIM_Support]

This answer was originally posted on DCIM Support by Steven Marchetti on 2019-03-16

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Hi Mostafa,

i wiuld caution you against writing your own DDF files. I have seen instances where mis-written DDF files have cause issues with DCE up to and including causing the system to crash or fail to boot. 

As for your question on writing to a Modbus register, I am not aware of this being an option for Modbus devices. I will defer to the DDF creation team if they have information they can provide. 

Thank you,

Steve. 

(CID:140714689)

[DCIM_Support]

This answer was originally posted on DCIM Support by Glenn Martin on 2019-03-18

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Hi Mostafa,

While writing values to an SNMP OID is supported for a limited number of applications, unfortunately the only operations supported for Modbus devices are functions 1-4; writes to coils (functions 5, 15) or holding registers (functions 6,16) are not supported in DDFs.

Regards,

Glenn Martin

(CID:140715133)

[DCIM_Support]

This comment was originally posted on DCIM Support by spezialist on 2019-04-01

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Dear Mosi,

Tell us, please, did you solve your question or not?

With respect.

(CID:141269193)

[DCIM_Support]

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