basically just indicates the I/O error, puts the program in stop mode.
When the condition is fixed I try to use the power reset button on the processor. However the fault is still there until I log on then tell the program to run. Fault clears all is good.
On the other cards such as the digital input/output card. We had an I/O fault on one of them and when the condition was fixed its I/O fault cleared no stop in the program Fault also cleared itself in that case)
It looks as though its something specific to just this one card. I've called Sneider electric on it and still waiting for his reply on what can be causing the non reset. This is a major concern as this processor is mounted on an Oil feild truck more spefically an N2 unit.
So a shutdown on the field would be a very bad thing for business when the truck can produce 50k per day. They need a reliable system so a single sensor error etc shutting down the processor would cost a lot of money. Were currently designing some manuals work arounds.
One of the things were designing is a stand alone switch circuit to control the selector relay to two proportional driver boards.
However there is more pumps that have to be looked into and the other pumps have PID controlled by the Modicum.
This particular pump has the PID with the proportional controllers.
There is some very wierd stuff done on this wiring, The other problem we encountered related to this is that they have two photoeyes to count strokes whose signals have been split to handle both a digital input as well as the counting card input, when we got on site there was a pullup resistor on one of the sensors as there was not enough driving current to trigger both inputs at the same time. So we opted to replace that resistor with a mosfet switching circuit, I'll be heading out to site today to try this Idea out. However failing that I wrote a modification that when the digital input card sees the sensor output that condition to a new output which I may wire or may not wire to the input on the counting card, thus allowing the sensor to be plugged solely into the digital input card. I have to check and may sure the output won't blow the input of the other card first.