TheCaptain2000
Lifetime Supporting Member
One of my SLC 500 AB PLCs has (2) 1746-OW16 output modules. Each of these hard contact relays "contact" every 4 seconds for 24/7/365 at 110 VAC. These relays also have a tendency to fail and warrant replacement. My company has been replacing these individual relays every month or so for the past several years. Is there a "solid-state" upgrade for these relays or another module that would work better for my particular cycling time? Is it also possible that I may be having other problems contributing to these failing relays?