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Topics - ccdubs

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31
Technical support / TBasic Command to Get PLC Address
« on: November 26, 2007, 07:13:24 PM »
Hi,

Does anyone know if there is a TBasic command that returns the address of the PLC that the software is loaded on to?

Thanks

32
Technical support / MD888 as MODBUS Slave AND Master
« on: September 09, 2007, 03:43:33 PM »
HI there,

Does anyone know if it is possible to use the MD888 as a MODBUS slave and a master?

I have a number of PLC's forming part of a network branch. I plan to use SCADA to talk to Slave PLC (address 1) via MODBUS RTU. This PLC would then become a master and communicate commands with the others.

It this acheivable?

Many thanks.

33
Technical support / D/O Pull Up resistor
« on: August 23, 2007, 12:41:59 AM »
Hi all,

Can anyone please tell me what the value of the digital output pull up resistor of the T100MD-888 is?

Also please confirm that this is connected to the power suppy rail. I'm sure it is.

Many thanks.

34
Technical support / 1kHz Square Wave
« on: May 03, 2007, 02:25:13 PM »
Hi,

Thanks for the answer yesterday.  I have a new query.  What is the best way to generate a 1 kHz square wave output (PWM, stepper controller, internal clock)?  This signal needs a 50% duty.

I am also wanting to turn the 1kHz output off and on every 500ms so that I can feed a repetative beep to a speaker.

Thanks for the help.

35
Technical support / Standby load T100MD888
« on: May 02, 2007, 05:02:40 PM »
Hi,

Does anyone know what the stand-by load of a T100MD888 is with no external devices attached.  I need to design a battery charging system using a solar panel.

Many thanks.

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