ifm CR1074 EtherNet/IP Adapter fails on empty CODESYS project with C0103 retain memory error
Hi, I’m trying to connect an ifm CR1074 to a Rockwell CompactLogix L19 over EtherNet/IP.
I’ve been working with ifm for about 3 years, so I’m reasonably familiar with the environment and this does not look like a basic setup mistake.
I tested with:
- CODESYS 3.5.16
- CODESYS 3.5.18
- HMI target version: 3.5.16.50
A completely empty project downloads correctly.
But as soon as I add the EtherNet/IP Ethernet Adapter, even before adding modules or variables, download fails with:
C0103: Out of retain memory: Variable 'g_c_lastAcdConflict', 350 bytes...
I also previously saw the same type of error with retainData.
I did not create any retain variables manually.
So it seems the problem appears just from adding the EtherNet/IP Adapter itself.
Has anyone seen this on ifm targets?
Is this a package/runtime compatibility issue?
Any known working version combination?
Goal is just to exchange 2 INTs with a CompactLogix L19.