Detailed Description
2.5 Service display PROFIBUS DP 840Di
Diagnostic Tools (D1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-27
Detailed information of the slots within a slave
The Details button opens the diagnostics dialog box Detailed information on the slave. This
screen form provides detailed information on the slots assigned to the DP slave.
In addition, the Slave dialog box displays important information on the DP slave currently
selected.
The following information is displayed for the slots:
Table 2-3 Diagnostic screen detailed information on the slave
Function/subfunction Explanation/meaning
Slaves
Slave No. [DP address] Configured DP address of DP slave
Assignment Displays whether the DP slave is assigned to the NC or to the PLC.
• NC: e.g. one or several drives controlled by the NC.
• PLC: e.g. I/O modules or an axis controlled by the PLC.
Active on the bus Displays whether the DP slave has been detected on the bus
• Green lamp: DP slave has been detected on PROFIBUS DP and the data exchange with the
assigned component (NC or PLC) operates.
• Red lamp: Failure or no communication.
Synchr. Displays whether DP slave operates on the bus synchronously to the NC.
• Green lamp: DP slave operates on PROFIBUS DP synchronously to the NC, i.e. the
equidistant data exchange takes place.
• Gray lamp: DP slave is not assigned to the NC, but to the PLC.
• Red lamp: Failure or no communication.
Slots
No. Slot number within DP slave
I/O address I/O address in the I/O address space of the PLC assigned to this slot. For NC axes, setpoint and
actual value must always be configured using the same I/O address.
Logical drive no. Drive number assigned for the appropriate axis in the NC machine data.
Length [bytes] Length of the I/O area in the STEP7 I/O address space, which is reserved for the slot
Type Specification whether the slot is an input, output or diagnostic slot. If the slot is assigned to an
NC axis, an output is always designated as a setpoint and an input always as an actual value.
Machine axes Display of the name defined for this slot in the machine data. If the slot is not assigned to any
NC axis, <No NC axis> is displayed.
Message frame type Message frame type configured in the NC machine data. If the slot is not assigned to any
NC axis, the message frame type will not be occupied (-).
Status Current slot status is only displayed for NC axes
• Green: Slot is used by the NC; communication active
• Gray: No NC axis
• Red: Slot is used by the NC; communication currently not active
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