ProSoft Technology MVI56-104S - Manual (Page 169)

Reference MVI56-104S ♦ ControlLogix Platform
User Manual IEC 60870-5-104 Server Communication Module
ProSoft Technology, Inc.
Page 169 of 188
November 18, 2009
Maximum number of outstanding I format APDUs k and latest acknowledge
APDUs (w)
Parameter Default Value Remarks Selected Value
k 12 APDUs Maximum difference receive sequence number to
send state variable (Maximum value is 19)
w 8 APDUs Latest acknowledge after receiving w I format
APDUs
Maximum range of values k: 1 to 32767 (2 15 -1) APDUs, accuracy 1 APDU
Maximum range of values w: 1 to 32767 (2 15 -1) APDUs, accuracy 1 APDU
(Recommendation: w should not exceed two-thirds of k).
Port number
Parameter Value Remarks
Port number 2404 In all cases
RFC 2200 suite
RFC 2200 is an official Internet Standard which describes the state of
standardization of protocols used in the Internet as determined by the Internet
Architecture Board (IAB). It offers a broad spectrum of actual standards used in
the Internet. The suitable selection of documents from RFC 2200 defined in this
standard for given projects has to be chosen by the user of this standard.
⌧ Ethernet 802.3
Serial X.21 interface
Other selection from RFC 2200