ProSoft Technology CLX-APACS - Manual (Page 37)

QTS-CLX-APACS Page 31
Diagnostic Counters
QTS-CLX-APACS diagnostic counters are integers and are mapped to ControlLogix
input data of type INT on connection 9.
Alias Name Offset Description
StatTxGood 0 Good packets transmitted on both channels
StatBusARxGood 1 Good packets received on bus A
StatBusARxTimeOut 2 Receive timeouts on bus A
StatBusAAbortErr 3 Abort errors on bus A
StatBusANoiseErr 4 Noise errors on bus A
StatBusACrcErr 5 CRC errors on bus A
StatBusBRxGood 6 Good packets received on bus B
StatBusBRxTimeOut 7 Receive timeouts on bus B
StatBusBAbortErr 8 Abort errors on bus B
StatBusBNoiseErr 9 Noise errors on bus B
StatBusBCrcErr 10 CRC errors on bus B
StatProtocolErr 11 Protocol errors
The alias names are prefixed with the module name and an underscore.
In addition, bit 0 of the first word of output data on connection 9 is used for the command
to clear the diagnostic counters. The alias name is StatResetBit. The counters are cleared
when this bit changes from 0 to 1.
Slot Status Bits
The QTS-CLX-APACS maintains an array of bits that indicate the status of the APACS
modules.
Use the slot status bits to determine when you can access data from a module. Some
APACS modules take several seconds to go online.
In master mode, the bit is 0 if the module has good communication status and is 1 if the
associated module is in error or is not responding.
In monitor mode, the bits do not update and are always 0. Aliases to the bits are provided
by the configuration tool for compatibility with master mode.
Aliases for these bits have names like
APACS_SlotStatus_R01S04
for the bit associated with the module in rack 1 slot 4.
Use the aliases to access the status bits.