KROHNE UFC 400 Modbus EN User Manual
Page 3
CONTENTS
3
www.krohne.com
05/2013 - 4002744801 - AD Modbus UFC 400 R01 en
UFC 400
7 Troubleshooting
25
7.1 No response to Modbus requests .................................................................................. 25
7.2 Communication errors ................................................................................................... 25
7.3 Responding with exception "Illegal Function" ............................................................... 25
7.4 Responding with exception "Illegal Data Address" ....................................................... 26
7.5 Responding with exception "Illegal Data Value"............................................................ 26
8 Appendix
27
8.1 NAMUR NE 107 Event Group(s)...................................................................................... 27
8.2 NAMUR NE 107 status signals ....................................................................................... 28
8.3 Supported Modbus function codes................................................................................. 28
8.4 Number format............................................................................................................... 31
8.5 Glossary .......................................................................................................................... 31