I recently encountered an error on a machine in the field where an MD4 will not boot up if it has 24 volts coming into C2 pin 1 or C2 pin 2. MD4 is running IQAN Design 6.08. Instead it will say "IQAN-MD4 Safe mode! Application no loaded Open or short circuit on ADDR pins." I was able to replicate in a lab.
We recently renewed our IQAN license and updated to the latest version of design which is when this problem started. As a test, I reflashed the exact same program except that it was written in IQAN design 6.02. I did not encounter the same issue with IQAN 6.02 so I believe this problem was introduced in 6.08.
Please review as we have machine in the field that have been running for a while that are using C2:1 and C2:2 as rocker switch inputs. The MD4s will not boot while the rocker switch is in the ON position.
Customer support service by UserEcho