Atlas Copco PowerMACS 4000, User Manual

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PLC
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5.3.6 DC PLUS variables
The following variables are used for control of a DC PLUS Ethernet device. For a more detailed
description of the DC PLUS Ethernet device see chapter: DC PLUS.
Inputs (seen from the PLC):
Variable Type Use
PLUS_CONNECTED BOOL TRUE if a connection to the PLUS server is established.
PLUS_DATAAVALIABLE BOOL TRUE if there are data available in the cycle data queue for the
PLUS device.
PLUS_MODE INT Mode number from conversion of TMU. The conversion table in the
PLUS device will be used for the conversion.
The string to convert is a TMU received
from PLUS, if “Station Type”
on the PLUS device is SAW/WIS. Otherwise the string
PLUS_OVERRIDETMU will be used.
The value is updated when PLUS_GETTMU_OK is set to TRUE.
PLUS_GETTMU_CHECKED BOOL Reflects the selection of Station Type in the PLUS device in
ToolsTalk PowerMACS. Set to TRUE for station type SAW and to
FALSE for the other types.
Only available for backward compatibility reasons, it is
recommended to use PLUS_STATIONTYPE instead.
PLUS_STATIONTYPE INT Reflects the selection of Station Type in the PLUS device in
ToolsTalk PowerMACS.
Possible values are:
1 = SAW/WIS
2 = SPS
3 = VBA
4 = SSE
PLUS_SENDDATA_NOK BOOL Is set to NOK if a send of cycle data fails for some reason, e.g. bad
VIN number, bad QO, etc.
If there are more data in the cycle data queue they will be sent even
if one send failed.
PLUS_SENDDATA_NOK will be set until a positive edge is sent to
PLUS_RESETSENDDATA_NOK.
PLUS_BUSY BOOL The device is busy sending a request for TMU or a Test telegram.
Only tests started from the PowerMACS PLC, with
PLUS_CHECKCOM will affect PLUS_BUSY.
PLUS_GETTMU_OK BOOL TRUE if the latest request for TMU succeeded.
PLUS_GETTMU_NOK BOOL TRUE if the latest request for TMU failed.
PLUS_CHECKCOM_OK BOOL TRUE if the latest test of the communication, started from the
PowerMACS PLC with PLUS_CHECKCOM, succeeded.