text: <s>[INST] Opto outputs on a Flex 40 drive to a PLC input. Can the opto outputs (17 or 18) be wired directly to a PLC input? Since the opto outputs are sinking signals, I assume the PLC input would have to be sourcing? Am I correct in this assumption? [/INST] Yes, your assumption is correct. Your PLC should be able to see 0 volt as a true signal. Anyway, there is a possibility to invert the logic signal, to use instead a sinking input, that is a more used module. If you are interested in it, please send me a Private Message here in the forum with your e-mail address and I will send you back some indications. Hope this helps… - fuzzy logic \\n </s>