PaulKraemer
Member
- Join Date
- Jan 2005
- Posts
- 24
Hi,
I have a control system with a PLC and a PC based HMI (human machine interface).
I have an application where I have two bare resistance strips through which I want to pass a current. (I will be using these to seal the edges of two pieces of mylar). The current through these strips will typically be about 8 amps at 115 VAC.
I would like to be able to control and monitor the current through these resistance strips using my PLC/HMI. Basically, if an operator enters a setpoint of 8 amps on the HMI, I need a way for this setpoint to be communicated to the current controlling device. I also would like to be able to read the actual current into my PLC/HMI so that I can check to make sure the actual current equals the setpoint current.
Does anyone know of an instrument that would allow me to do this?
Thanks in advance,
Paul
I have a control system with a PLC and a PC based HMI (human machine interface).
I have an application where I have two bare resistance strips through which I want to pass a current. (I will be using these to seal the edges of two pieces of mylar). The current through these strips will typically be about 8 amps at 115 VAC.
I would like to be able to control and monitor the current through these resistance strips using my PLC/HMI. Basically, if an operator enters a setpoint of 8 amps on the HMI, I need a way for this setpoint to be communicated to the current controlling device. I also would like to be able to read the actual current into my PLC/HMI so that I can check to make sure the actual current equals the setpoint current.
Does anyone know of an instrument that would allow me to do this?
Thanks in advance,
Paul