How to frame a RAW Z-Wave Command

Can someone who has done this before help?

Screenshot 2019-05-04 at 12.37.19.png (163.93 KiB) Viewed 3789 times

I want to send a Z-Wave Command that sets the keep alive time to 255.

I am struggling to understand how that command is constructed.

I have tried sending AA=0xFF but it does not work.

Any ideas?

As always, much appreciated.

Great question - I have the same problem every time I try to mess with this type of thing - I have never found a guide with some simple info on how to format the messages!

If you are really digging into Zwave, you need the whole command: 0x70,0x04,0xXX,0xYY0xAA

0x70: ZWave Configuration class
0x04: Set

(So 0x70, 0x04 means you're setting a parameter)

0xXX is the parameter to set, 0xYY is how big the data for that parameter is (1, 2 or 4 bytes), and 0xAA is the value you're setting.

However for setting the alive time, which I presume is a one-off job, just go Interfaces > ZWave > Modify Config Parameter. (ie don't worry about doing it in Zwave code)

Parameter = 1, Size = 1, Value = 255

Great question - I have the same problem every time I try to mess with this type of thing - I have never found a guide with some simple info on how to format the messages!

There ain't no simple guide

I'll come back tonight and give you the full code for doing this task in Zwave.

sigh - at this rate -- in five years I will not be able to figure out how to flush the toilet

In Indigo:

Code: Select all

codeStr = [112, 4, XX, YY, AA]
indigo.zwave.sendRaw(device=indigo.devices[1234578],cmdBytes=codeStr,sendMode=1) #If you know/have the device ID in your code
indigo.zwave.sendRaw(node=55,cmdBytes=codeStr,sendMode=1) #If you have the Zwave node in your code

#So...

codeStr = [112, 4, 1, 1, 255]
indigo.zwave.sendRaw(device=indigo.devices[1234578],cmdBytes=codeStr,sendMode=1)

112 is 70 in decimal
4 is 04 in decimal

XX = 1 (Param 1)
YY = 1 (Size 1)
AA = 255 (Value)

Wow thanks guys !!!!

Specifically I am looking fo the exact characters I am looking for in the Indigo Interfaces/ZWave / Send Raw Z-Wave Command

I know the target device.

What do I put in the payload bytes filed to set the time out to 255 please.

Then hopefully I can see the application and get my head around it.

Assume for the moment that Parameter set is not an option here and RAW Wave is the only way.

Bear with me - I am feeling very inadequate right now

[Edit] It seems that I send "0x70,0x04,0x01,0x02,0x01,0xFF" in the Send Raw Z-Wave Command - going to test it now.

Mike

Progress!!!

0x70 0x04 0x01 0x01 0x01 0x01

That sets it 1 - FF will set it to 255?

Yes

Assume for the moment that Parameter set is not an option here and RAW Wave is the only way.

Mike

But your example screenshot IS a parameter.


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Progress!!!

0x70 0x04 0x01 0x01 0x01 0x01

That sets it 1 - FF will set it to 255?

You’ve got too many codes there?

0x70 0x04 0x01 0x01 0xFF should do what you want if choosing to do it in Send Raw Command.


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FF is base 16 (hexadecimal) i.e. (hex = decimal): A = 10, B = 11, C=12, D=13, E=14, F=15

So FF = (15 x 16) + 15 = 240 + 15 = 255

Each hexadecimal position going left is multiplied by 16 as opposed to decimal where it would be by 10.

Decimal:
1
10 = 10 x 1
100 = 10 x10
1000 = 10 x 100
etc

Hexadecimal:
1
16 = 16 x 1
256 = 16 x 16
4096 = 16 x 256
etc

Thanks
guys

very helpful

I am making progress, been successfully sending a status enquiry to a device that is effecting working as a poll so - interesting to play with.



Very much appreciate your help today ...

[matt (support)]

Note there is an additional API for setting config parameters on Z-Wave devices. Ultimately It does the same thing as the indigo.zwave.sendRaw() command mentioned above, but is easier to use if you are just setting config parms:

Code: Select all

indigo.zwave.sendConfigParm(deviceOrNodeID, paramIndex=1, paramSize=1, paramValue=255)

Cool, never knew that.


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