Monitoring Of Control Commands; Motor Current Monitoring; Statistic And Diagnostic Functions - Siemens SIMOCODE DP Programming And Operating Manual

SIMO_CHN Function
3.1 Description
3.1.12

Monitoring of Control Commands

● The monitoring logic checks whether the output commands match the read check-back
signals. It sets a monitoring error (QMON_ERR=1) if a check-back signal changes
unexpectedly (e.g. due to a command enabled directly at the SIMOCODE-DP Local
Control Station in REMOTE mode) or if an output command has not become active after
the TIME_MON period has elapsed.
● The monitoring error is reset at the OS through the RESET input or through linkable input
L_RESET.If L_RESET=1 is set continuously, output QMON_ERR remains set for one
program cycle if the above conditions are present.
● Monitoring is active if a QMONITOR=TRUE output is set. This is the case if
MONITOR=TRUE, TIME_MON>0 and SAMPLE_T>0.
● Monitoring is not active while lock time QLTA is running, or if a higher-level error (QCSF)
or general fault in SIMOCODE-DP (QG_FLT) is present.
3.1.13

Motor Current Monitoring

This block monitors the read motor current. Any value above or below the limit value is
indicated by corresponding outputs, and indicated where appropriate.
The limit values are configured at the OS through inputs CUR_AH, CUR_WH, CUR_WL, and
CUR_AL. A hysteresis value HYS can also be set. The indications are provided through
outputs QCUR_AH, QCUR_WH, QCUR_WL, and QCUR_AL. Output QCUR is used to
indicate whether a current is flowing.
Motor monitoring is only active when the current goes above minimum value CUR_MIN
(default value of CUR_MIN=20%). Also, motor monitoring is inhibited after the motor is
switched on, i.e. when the signal edge of QCUR (0->1) changes for the duration of
TIME_CLASS (default value 10s). The time set with the TIME_CLASS parameter should
match the time class configured in the SIMOCODE-DP. Special case: the duration for STAR
is 2.1 x TIME_CLASS.
The display range and limits for the motor current are set through inputs MO_PVHR and
MO_PVLR.
3.1.14

Statistic and Diagnostic Functions

If configured accordingly (see Configuration), SIMOCODE-DP provides data records
containing statistic and diagnostic information.
When SIMO_DPV1 is enabled, the system functions RD_REC and WR_REC are used to
access the data records 130, 131, and 133. Input SIMO_DPV1 and address LADDR are
configured through the CFC Generate Module Drivers function, using the hardware
configuration.
For controls from the OS, enable signal QENSDCS is also required. In this case, output
QENSDCS is set depending on inputs SIMO_DPV1 and EN_SD_CS.
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SIMOCODE DP PCS 7 Library Migration (Legacy) - V9.0 SP2
Programming and Operating Manual, 09/2019, A5E48307694002A/RS-AA/001