Reliance electric PSC7000, Руководство по эксплуатации

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10-12
10.1.7 Latch Signal Status Input Variables (CHnZZZ@, CHnMRK@, CHnORG@)
This variable reads the current status of the latest signal for the respective channels. The
logic (True or False) is opposite to the input signal logic.
10.1.8 System Switch Variable (AUTORUN@)
This variable indicates whether the system switch of the PSC7000 Control Card is either
“Enable” or “disable”. When it is “Enable”, the variable should be True. When it is
“Disable”, the variable should be False.
10.1.9 Battery Status Variable (BATTERY@)
This variable indicates whether the battery built in the DSP module has at least 2.7V
output. When the output of the battery is at least 2.7V, the variable should be True,
otherwise False.
10.1.10 Battery Status Warning Variable (BTYWAR@)
This variable warns that the battery built in the DSP module is running low, close to the
specified voltage 2.7V. When the battery level is going down below 2.9V, the variable
should be False. If the level is at least 2.9V, it should be True.
10.1.11 SynchroCard Synchronizing Status Variable (SYNC1_LOCKED@)
This variable indicates the synchronization status with the SYNC-1 card in the same rack.
Asynchronized: FALSE, Synchronized: TRUE
10.1.12 SynchroCard Interval Variable (SYNC1_MILLISECONDS)
This variable specifies the frequency (unit: millisecond) of the SYNC-1 card in the same
rack. When two or more cards are used in the same rack, this setting will be enabled for
the SYNC-1 card with the smallest slot number.
10.1.13 Autorun Permission Variable (AutorunPermissi
o
n@)
The autorun permission variable indicates whether or not the unit is ready for operation.
Disabled: FALSE, Enabled: TRUE
10.2 How to Use System Variables
The system variables are directly used without variable definition in the configuration task or
the “COMMON” definition in the task.
The following example shows how the analog output variable of the channel 1 is started in
the control block task:
14500 CALL ANALOG_OUT (INPUT = SPEED_REF, &
K = 1.0, &
OUTPUT = CH1_ANALOG_OUT!)