IEC60870 Slave - Unknown device 10x. dev: 0, tid: 0 ioa:0

IEC60870 Slave - Unknown device 10x. dev: 0, tid: 0 ioa:0

Hi,
I have a zenon logic project correctly generated. Problem appears in Report tab (where I can read all errors in zenon logic) while zenon logic is running on the pc.
In particular, I see following errors:
15.07.2016 12:55:00 T5Bus870Slave: 2016.07.15 12:55:00,190 Err:109 Unknown device 101. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:01 T5Bus870Slave: 2016.07.15 12:55:01,0 Err:109 Unknown device 102. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:01 T5Bus870Slave: 2016.07.15 12:55:01,570 Err:109 Unknown device 103. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:02 T5Bus870Slave: 2016.07.15 12:55:02,140 Err:109 Unknown device 104. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:02 T5Bus870Slave: 2016.07.15 12:55:02,700 Err:109 Unknown device 105. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:03 T5Bus870Slave: 2016.07.15 12:55:03,310 Err:109 Unknown device 106. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:03 T5Bus870Slave: 2016.07.15 12:55:03,720 Err:109 Unknown device 101. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:04 T5Bus870Slave: 2016.07.15 12:55:04,550 Err:109 Unknown device 102. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:05 T5Bus870Slave: 2016.07.15 12:55:05,120 Err:109 Unknown device 103. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:05 T5Bus870Slave: 2016.07.15 12:55:05,680 Err:109 Unknown device 104. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:06 T5Bus870Slave: 2016.07.15 12:55:06,250 Err:109 Unknown device 105. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:06 T5Bus870Slave: 2016.07.15 12:55:06,810 Err:109 Unknown device 106. dev:0 coa:0, tid:0 ioa:0
15.07.2016 12:55:06 T5Bus870Slave: 2016.07.15 12:55:06,910 Err:107 CRC wrong! Expected:115 actual:83 dev:0 coa:0, tid:0 ioa:0

These errors are continuosly prompted in the Report tab.
Someone have some information regarding these?
Thanks

This is a migrated post! Originally posted on 20.07.2016 by user steven.costantini. Please be aware that information can be outdated.