MVI46-PDPS ♦ SLC Platform
Reference
Profibus DP Slave Communication Module
User Manual
ProSoft Technology, Inc.
Page 50 of 53
Last Global Command: Word 148
The value of the last global command code received from the master.
Bit
Designation
Significance
0
Reserved
1
Clear_Data
With this command the ASCI output data is deleted in data transfer
buffer and is changed to next transfer data buffer contents.
2
Unfreeze
With "Unfreeze": freezing input data is cancelled.
3
Freeze
The ASCI input data is fetched from next transfer buffer to data
transfer buffer and frozen. New input data is not fetched again until
the master sends the next "Freeze" command.
4
Unsync
The "Unsync" command cancels the "Sync" command.
5
Sync
The ASCI output data transferred with a WRITE_READ_DATA
telegram is changed from data transfer buffer next state buffer. The
following transferred output data is kept in data transfer buffer until
the next "Sync" command is given.
6,7
Reserved
The Reserved designation specifies that these bits are reserved for
future function expansions.
5.2.5 Disabling the RSLinx Driver for the Com Port on the PC
The communication port driver in
RSLinx
can occasionally prevent other applications
from using the PC’s COM port. If you are not able to connect to the module’s
configuration/debug port using
ProSoft Configuration Builder (PCB)
,
HyperTerminal
or
another terminal emulator, follow these steps to disable the
RSLinx
driver.
1
Open
RSLinx
and go to
C
OMMUNICATIONS
>
RSW
HO
.
2
Make sure that you are not actively browsing using the driver that you wish to stop.
The following shows an actively browsed network.