F1 display on DRM21 being used with CJ1M CPU13-ETN

[navaidy 0]

i have a problem as my device net DRM21 being used with CJ1M CPU13-ETN is indicating "F1" on its 7-Seg display - means Bus OFF Detected as per the manual. The manual says the Correction is check the following: • Matching master and slave baud rates • Proper cable lengths (trunk and branch lines) • Broken or loose cables • Installation of terminators at both ends of the trunk line • Excessive noise The only thing i wonder is about the DeviceNet cables. But there are many cables used for this network and they're covered closely. anybody who can help me.

[PdL 71]

Did the F1 error appear after changing the network structure? Did you add a new slave? Power off the network and check the network impendance. Should be about 60 Ohms, 121 Ohm connected at each end. I've used all kinds of cables, as long as they are shielded twisted pair it should be ok.