TotalFlow XIO TFIO DI/DO module won't turn DO on...

[timothy585]

I'm new to the TotalFLow XIO and it has an attached TFIO DI/DO combo module. All I'm trying to do is close an output on the TFIO module.



I'm using Modbus and I can set register 7.64.21 just fine and it shows register 7.64.13(DO-6 Output) changing state and CLOSING, but for the life of me I cannot figure out how to get the physical IO point on the TFIO module to close. It's an FET, not a dry-contact, but I'm just trying to latch a small 24VDC interposing relay, which should be no problem.


Am I writing to the wrong register to set the output relay or something?


Thanks!

 

[FluxCap]

Not sure about the register address, but I recently used one of these for the first time and recall that it had to switch the negative side of the coil.

 

[EvelynNapier]

Ok, thanks.

 

[diat150]

is the xio powered with 24vdc?



we typically run any solenoid thru a relay. so we would typically have a 12vdc relay hooked to the output of the tfio. I usually switch gnd thru the trio so the gnd terminal would be hooked to -12vdc and the sign side would hook to the - side of the coil on the 12vdc relay. then you would bring + 12vdc to the + side of the relay coil. when you turn on the output the relay should energize.