Internet PLC Forum

I am trying to use the FP4030MR HMI with a NANO and a I-7017 analog input module but I am having problems.

   1. The FP4030MR only communications with the NANO sporadically.
   2. The NANO has problems communicating with the I-7017 module when the NANO tries to communicate with the I-7017 it will receive the command strings from the FP4030MR and the I-7017.

I have each unit set to a different address and I have even tried to use MODBUS protocols in the FP4030 but it does the same thing.

I am using the NETCMD to communicate with the I-7017.

iTRiLOGI 6.50 build 09 was work last week on Java 1.7 I upgraded to Java 1.8 today and now the simulation will not work for either 6.50 or 7.10 even when I use a sample program. The simulator open normally up it will not run and then when it is closed it will restart but it will then lot up the iTRiLOGI to the point that I have to use Task Manager to close.

I am using the MD888 to control the output by varying the duty cycle. I am monitouring the voltage and the current (using a 5A @ 100mV shunt) to maintain a constant current output but also to make sure that the voltage does not exceed a set limit.

I need to do the RMS calculation on the ADC inputs but I can not figure out the best way to calculate a square root.

I am using an MD2424 as a master controller and using it to set  and read varibles in eight MD888, using the hostlink commands with a RS485 loop and then they control the processes. But I have run in to a porblem were on of the slave MD888 will get bad data loaded into a varible which causes it's program to pause because of a data out of range alarm, if I reset the unit it starts to run again. Is there a command that the Master controller can send to the slave to cause a Master Reset in the slave unit when it can not communicate with the slave unit.

  My application will be using multiple MD888 as slaves and then one as a master, to make maintance easier I would like to set the PLC address by using DIP switches. Can this be done.