Form C Contacts on M3, M2 Had at least one form C contact
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Sep 4 2007, 07:58 AM
Joined: 30-August 07
Member No.: 3,593
I've written several programs for the M2 and I took advantage of the one form C contact on the standard unit as part of my control system. I recently purchased several M3's and noticed the form C contact was missing. Is there a specific part number that has this configuration? I have no problem upgrading to the M3 if it's as good as the M2 and has the same features (or more), but if future models will have less options this creates a problem when a replacement is needed on an old installation.
Any help would be appreciated,
Oct 9 2007, 09:45 AM
Group: Authorized Member
Joined: 23-May 03
Member No.: 3
Unfortunately, the changeover relay could not be justified for the standard M3 products. It is possible to to purchase an XE10 extension module with 1 changeover relay output. These can be used with either the XD10 or XD26 expandable controllers. You may want to consider using a SIMM module with a changeover output relay.
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