micrologic 1100 pls

[tommu 0]

I have an encoder on a shaft and have to phaze shift the Z pulse I was looking at the 1100 pls I got the pls to set the output bit on the range and turn it off at the second point but I need the Z to reset the counter every time it comes arount to keep phase shift X number of counts off the original position. any suggestions tom

[TimWilborne 108]

Set your mod to 7 and connect the z marker to Input 3...might be Input 2...can't remember. This should cause the counter to reset everytime it sees the Z marker

[tommu 0]

Thanks for the reply Yes the mode 7 and will reset the counter but the out put stays on from the time it gets triggered with the preset until the Z pulse comes around. I was looking at the pls so I could turn it on with 1st preset off with the second (on at 150 off at 170 for Example) but the pls dosen't "reset" with the Z pulse and start counting over it just keeps counting on. tom

[TimWilborne 108]

Ok missed the output problem in your first post. Depending on how time critical the turning off of the output is... Scan time dependent - Put a rung in your program to unlatch the output with a one shot based on that reset input Immediate Interrupt - Setup an EII based off of the reset input to unlatch the output.

[TimWilborne 108]

Actually, scan time dependent method won't work. Use the EII

[tommu 0]

Thanks again for the replys I'm not famiular with EII instruction and it wasent in the SLC instruction set can you explain it tom

[TimWilborne 108]

The EII is in the function files where you configure the HSC. It allows you to execute a ladder the moment an input goes high or low. Think of it as an OSR or OSF that is not scan time dependent