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Technical support / E10 PLC on Pause
« on: July 20, 2009, 10:47:01 AM »
Hello
I?m having an issue with an E10 PLC, but first I have a few questions.
1- What can possibly cause an E10 PLC to go in to ?Pause Mode? on its own? The PLC was unresponsive and when I connect my laptop to it the TRI software gave me a message that the PLC was in user ?Pause Mode?.
2- After resetting the PLC through the software from ?Pause Mode? only some of the logic is executed, from the second rung down. What can this be? Is like the PLC doesn?t detect the input to be on.
3- Power supply is 24 VDC with a SOLA power supply.
I have this PLC installed controlling a sump ejector pumps with a few relays interfacing voltages. The floats power a relay which activates input in the PLC. And the outputs power a relays that starts the pump. The PLC operation is very simple and straightforward. Input1 is activated output 1 is energized, Input 2 is activated output 2 is energized together with a timer. If the timer times-out and the 2 input still activated then energized the alarm and the last output will be energized to help with the load. For some strange reason this work for about a week, after a week the plc goes in to an unresponsive mode ?Pause? and it doesn?t do anything. This is the second plc and it is doing the same thing.
Please advice,
Ed
I?m having an issue with an E10 PLC, but first I have a few questions.
1- What can possibly cause an E10 PLC to go in to ?Pause Mode? on its own? The PLC was unresponsive and when I connect my laptop to it the TRI software gave me a message that the PLC was in user ?Pause Mode?.
2- After resetting the PLC through the software from ?Pause Mode? only some of the logic is executed, from the second rung down. What can this be? Is like the PLC doesn?t detect the input to be on.
3- Power supply is 24 VDC with a SOLA power supply.
I have this PLC installed controlling a sump ejector pumps with a few relays interfacing voltages. The floats power a relay which activates input in the PLC. And the outputs power a relays that starts the pump. The PLC operation is very simple and straightforward. Input1 is activated output 1 is energized, Input 2 is activated output 2 is energized together with a timer. If the timer times-out and the 2 input still activated then energized the alarm and the last output will be energized to help with the load. For some strange reason this work for about a week, after a week the plc goes in to an unresponsive mode ?Pause? and it doesn?t do anything. This is the second plc and it is doing the same thing.
Please advice,
Ed