ProSoft Technology MVI56-101S - Manual (Page 170)

IEC 60870-5-101 Slave Interoperability Statement MVI56-101S ♦ ControlLogix Platform
User Manual IEC 60870-5-101 Slave Communication Module
Page 170 of 193 ProSoft Technology, Inc.
August 2, 2011
6.4 Link Layer
(Network-specific parameter)
Frame format FT 1.2, single character 1 and the fixed time out interval are used
exclusively in this companion standard.
Link transmission procedure Address field of link
 Balanced transmission  Not present (balanced transmission only)
 Unbalanced transmission  One octet
 Two octets
 Structured
Frame length
 Unstructured
25 to 252 Maximum length L (number of octets)