A 38
2.4.3 Link address (address field of the link layer)
2 Octets
not structured
Link address
Maximum length L (number of octets)
Service functions of the link layer
Reset of remote link is present (FC0): Confirm ACK (FC0), the next FCB-
bit must be set
Request status of link is present (FC9): Respond status of link (FC11)
Functions code FC10: Request user data class 1 (data of previous regis-
tration periods and other data: e.g. status messages): Respond user data
with variable length (FC8)
Functions code FC11: Request user data class 2 (meter readings or data
of the most recent registration period): Respond user data with variable
length (FC8)
Reset of the application process is not present
Send / No Reply is not present
• Application Layer
2.4.4 Transmission mode for application data
Mode 1 is used exclusively: least significant octet first according to IEC
60870-5-4, section 4.10.
2.4.5 ASDU address
2 Octets ASDU address
2.4.6 Signature
with signature (default for billing data)
without signature (for operational data)
2.4.7 List address (list number)
0 = basic data Single events (default if no other value was defined)
11 = Reg. Period 1 MP1: ___ (default: 15min.)
12 = Reg. Period 2 MP2: ___ (default: off)
2.4.8 Rate information (programmable)
with rate information
without rate information (default)
To Next Page
Loading...