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54
C200HW-PRM21 PROFIBUS Master DTM
Section 2-4
• Select the
Device - Go Online
option from the main menu, or from the
DTM context menu, or
• Select the
button from the Tool Bar.
2.
A communication channel will be opened through the CIF driver, provided
this driver has been assigned to the DTM. Refer to section
2-4-3 Connect-
ing to the C200HW-PRM21
on how to assign this driver. After going on line
The name of the DTM in the Network view, will turn to Italic font, to indicate
that the Unit is on-line.
3.
Select the
Device - Diagnosis
option from the main menu, or from the
DTM context menu. The Diagnostics User Interface will now be displayed.
The figure below shows an example of the DTM Diagnostics User Interface.
The C200HW-PRM21 DTM Diagnostics User Interface contains five fields of
information. These fields are described in the table below.
LED Indicator /
Information Field
Description
M
a
st
e
r O
per
at
io
n
Mo
d
e
Operate
Master Unit is in OPERATE mode, i.e. the Master Unit exchanges I/O data with
its slave devices.
Clear
Master Unit is in CLEAR mode, i.e the Master Unit reads input data from the
assigned slave devices, but it sends zeros as output data to the slave devices.
Stop
Master Unit is in STOP mode, i.e. the Master Unit may only communicate with
other Master devices and not with the assigned slave devices.
Offline
Master Unit is in OFFLINE mode, and not active on the PROFIBUS network.