ProSoft Technology 5201-DFNT-104S - Manual (Page 36)

104S v2 ♦ ProLinx Gateway Configure the Gateway
(Firmware v2.xx) Protocol Manual
Page 36 of 157
ProSoft Technology, Inc.
March 19, 2010
2.1.18 Group Codes
One aspect of the point configuration database that leads to confusion is the
group definition field. This assignment for each point assigns a point to one or
more interrogation groups. Use of interrogation groups permits the controlling
unit to interface with a specific set of data. Refer to the IEC 60870-5-104
standard for a full discussion of interrogation groups. A specific group, Periodic
data group, reports data points on a set frequency. The frequency is set in the
Cyclic Data Transmission parameter in the configuration file. Remember that a
point can be assigned to more than one group.
Group Code Description
0x00000001 Interrogated by general interrogation (station or global)
0x00000002 Interrogated by group 1 interrogation
0x00000004 Interrogated by group 2 interrogation
0x00000008 Interrogated by group 3 interrogation (See Note 1, below)
0x00000010 Interrogated by group 4 interrogation
0x00000020 Interrogated by group 5 interrogation
0x00000040 Interrogated by group 6 interrogation
0x00000080 Interrogated by group 7 interrogation
0x00000100 Interrogated by group 8 interrogation
0x00000200 Interrogated by group 9 interrogation
0x00000400 Interrogated by group 10 interrogation
0x00000800 Interrogated by group 11 interrogation
0x00001000 Interrogated by group 12 interrogation
0x00002000 Interrogated by group 13 interrogation
0x00004000 Interrogated by group 14 interrogation
0x00008000 Interrogated by group 15 interrogation
0x00010000 Interrogated by group 16 interrogation
0x00020000 Interrogated by general counter request
0x00040000 Interrogated by group 1 counter request
0x00080000 Interrogated by group 2 counter request
0x00100000 Interrogated by group 3 counter request
0x00200000 Interrogated by group 4 counter request
0x40000000 Disable event scanning of this point
0x80000000 Periodic/cyclic data returned from unit
Note 1: Group 3 interrogation also returns the parameter data (ASDU 110 – threshold, low limit
and high limit) for all monitored measured points.