ProSoft ProLinx 104S, Protocol Manual

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104S ♦ ProLinx Gateway Reference
(Firmware v3.00 and later) Protocol Manual
ProSoft Technology, Inc. Page 131 of 157
January 22, 2010
Common Address of ASDU
(System-specific parameter)
One octet
⌧
Two octets
Information object address
(System-specific parameter)
One octet Structured
Two octets Unstructured
⌧
Three octets
Cause of transmission
(System-specific parameter)
One octet
⌧
Two octets (with originator address)
Length of APDU
(System-specific parameter, specify the maximum length of the APDU per system)
The Maximum length of the APDU is 253 (default). The maximum length may be
reduced by the system.
253 Maximum length of APDU per system
5.6.3 Selection of standard ASDUs
Process information in monitor direction
(Station-specific parameter, mark each Type ID ' X " if it is only used in the standard
direction, " R " if only used in the reverse direction, and " B " if used in both directions)
⌧
<1> := Single-point information M_SP_NA_1
⌧
<3> := Double-point information M_DP_NA_1
⌧
<5> := Step position information M_ST_NA_1
<7> := Bitstring of 32 bit M_BO_NA_1
⌧
<9> := Measured value, normalized value M_ME_NA_1
⌧
<11> := Measured value, scaled value M_ME_NB_1
⌧
<13> := Measured value, short floating point value M_ME_NC_I
⌧
<15> := Integrated totals M_IT_NA_1