Engineering via SICAM WEB
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
Unrestricted
433
DC8-037-2.02, Edition 10.2017
Variable name
Meaning
Format
PLC_SYSERROR_024
Protocol 3 fault
BOOL
PLC_SYSERROR_025
Protocol 3 communication fault
BOOL
PLC_SYSERROR_026
Protocol 3 failure
BOOL
PLC_SYSERROR_027
Protocol 3 communication failure
BOOL
Example:
PLC_START:
LD PLC_SYSERROR_005
(*sum error warning if bit = "1"*)
ST M_BOOL_ERROR005
(*store in a flag*)
You find the description of the system variables in the manual
SICAM RTUs Common Func-
tions System and Basic System Elements, chapter "Automation", section "Restricted
Open-/Closed-Loop Control Function", "Variables", "System Variables"
.
9.2.1.6 Command Processing According to IEC 60870-5-101/104
If a command (Activation,
ACT
) is generated by the controller and output on a I/O Master
Module, then the messages for command acknowledgement (
ACTCON
) and command termi-
nation (
ACTTERM
) are generated with the corresponding output address of the control.
If the output address of the control is the same as the input address, then both messages are
automatically transmitted again to the control.
If an
ACT
remains in the control (target = control, no periphery), then an
ACTCON
,
ACTTERM
that is to be possibly simulated can be generated in 1 cycle pass. For this the cause of trans-
mission for the command must be set to
0
and the spontaneous bit to
1
. Then one
ACTCON
and one
ACTTERM
respectively will be transmitted.
Example:
LD 0
ST 0_045_001_001_001.COT
LD 1
ST 0_045_001_001_001.S
If this function is not used, the
ACTCON
and
ACTTERM
can also be generated individually (for
this at least 2 cycle passes are required).
Note
The corresponding typ identification can be generated by means of Verwendung of utilization of the com-
mand "with/without time" (for instance TI 45/TI 58).
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