28 model 2000 DeviceNet Module Manual (DN611/DN611A)Chapter 3 Preparations for Operation (Hardware)3Usage Recommendations1. If a node address anywhere from 64 to 99 is set, the DN611 will develop a node address set-ting error when the S controller is switched on.• The LED MS blinks red.• The 7-segment LED displays F6 and the local node address alternately.To reset it, either issue a reset request or switch power back on after setting a node addresscorrectly.2. If a DN611 node address is set the same as that of another node, the DN611 develops a"same node address detected" error when it goes into run mode.• The LED MS lights green and the LED NS lights red.• The 7-segment LED displays the figure 70 and the local node address alternately.To reset the error, allocate the correct node address and, issue a reset request or switchpower back on.Usage Recommendations1. Use a small flat-tip screwdriver for changing values of the rotary switches.