ALTUS Nexto Series User Manual

5. CONFIGURATION
Function Type Configuration Description
Transmission Mode
Freeze by counter-
interrogation com-
mand, transmit
spontaneously
Equivalent to the counters acquisition D
Mode (Integrated Totals) defined by Stan-
dard IEC 60870-5-101. In this mode,
the control station’s counters interrogation
commands, freeze the counters. Case the
frozen values have been modified, they are
reported through events.
Freeze and trans-
mit by counter-
interrogation com-
mand
Equivalent to the counters acquisition C
Mode (Integrated Totals) defined by Stan-
dard IEC 60870-5-101. In this mode,
the control station’s counters interrogation
commands, freeze the counters. The sub-
sequent counters interrogation commands
(read) are sent by the control station to re-
ceive the frozen values.
Table 149: IEC 60870-5-104 Server Transmission Modes of the Frozen Counters
ATTENTION
The Standard IEC 60870-5-104, section Transmission control using Start/Stop, foresee the
commands STARTDT and STOPDT utilization to data traffic control between client and
server, using simple or multiple connections. Despite Nexto supports such commands, its
utilization isn’t recommended to control data transmission, mainly with redundant CPUs,
because such commands aren’t synchronized between both CPUs. Instead of using multiple
connections between client and Nexto server, it’s suggested the use of NIC Teaming re-
sources to supply (physically) redundant Ethernet channels and preserve the CPU resources
(CPU control centers).
5.5.14.7. Server Diagnostic
The IEC 60870-5-104 Server protocol diagnostics are stored in T_DIAG_IEC104_SERVER_1 type variables, which are
described in table below:
Diagnostic variable of type
T_DIAG_IEC104_SERVER_1.*
Size Description
Command bits, automatically reset:
tCommand.bStop
BOOL Disable Driver
tCommand.bStart
BOOL Enable Driver
tCommand.bDiag_01_Reserved
BOOL Reserved
tCommand.bDiag_02_Reserved
BOOL Reserved
tCommand.bDiag_03_Reserved
BOOL Reserved
tCommand.bDiag_04_Reserved
BOOL Reserved
tCommand.bDiag_05_Reserved
BOOL Reserved
tCommand.bDiag_06_Reserved
BOOL Reserved
Diagnostics:
tClient_X.bRunning
BOOL IEC 60870-5-104 Server is running
tClient_X.eConnectionStatus.
CLOSED
Communication channel closed. Server
won’t accept connection request. ENUM
value (0)
tClient_X.eConnectionStatus.
LISTENING
ENUM(BYTE)
Server is listening to the configured port
and there is no connected clients. ENUM
value (1)
211

ALTUS Nexto Series Specifications

General

Brand	ALTUS
Model	Nexto Series
Category	Computer Hardware
Language	English