Sir,
Thank you very much for the reply.
As requested, here's the log. For your info, I don't use long lamp rates (all are less than 2 seconds):
dim. 04/08/2012 16:39:47 : [iNST-ACK ] 02 62 13.6B.55 0F 11 00 06 LTONRR (00)
dim. 04/08/2012 16:39:47 : [iNST-SRX ] 02 50 13.6B.55 18.CE.92 2B 11 00 LTONRR (00)
dim. 04/08/2012 16:39:47 : [standard-Direct Ack][13.6B.55-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
dim. 04/08/2012 16:39:52 : [iNST-ACK ] 02 62 13.6B.55 0F 12 00 06 LTON-F (00)
dim. 04/08/2012 16:39:52 : [iNST-SRX ] 02 50 13.6B.55 18.CE.92 2B 12 00 LTON-F (00)
dim. 04/08/2012 16:39:52 : [standard-Direct Ack][13.6B.55-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
dim. 04/08/2012 16:39:52 : [ 13 6B 55 1] ST 255
dim. 04/08/2012 16:39:56 : [iNST-ACK ] 02 62 13.6B.55 0F 13 00 06 LTOFFRR(00)
dim. 04/08/2012 16:39:56 : [iNST-SRX ] 02 50 13.6B.55 18.CE.92 2B 13 00 LTOFFRR(00)
dim. 04/08/2012 16:39:56 : [standard-Direct Ack][13.6B.55-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
dim. 04/08/2012 16:39:56 : [ 13 6B 55 1] ST 0
Run Then are being used (simple progarm turning devices on at sunset for example. The programs are working fine. I just can't use Run 'then'