VPO10
PROFIBUS TO ANALOG/DISCRETE OUTPUT CONVERTER INSTALLATION, OPERATION, CONFIGURATION AND MAINTENANCE MANUAL
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• Some devices support the cyclic modules in the "long" and "short" formats. If there is a failure in the
cyclic communication, check if by changing the chosen format, the communication is established
successfully.
• If necessary activate the watchdog condition, which causes the equipment to assume a safe fault
condition when it detects a loss of communication between the slave device and the Profibus-DP master.
Check byte swap condition (MSB with LSB inversion and, in some cases, nibble inversion), as for
some systems it will be necessary on handling cyclic data.
VPO10 has the GSD identifier number equal to 0x60BE (Manufacturer Specific) and can still work
with the value 0x9712 (Profile Specific).
The DD, the DTM and the GSD of the VTT10-MP can be found on the website:
www.vivaceinstruments.com.br
For further details on the functional blocks and their cyclic parameters and Profibus PA technology,
refer to the installation, operation and configuration manual - Profibus PA - blocks, parameters and structure.
NOTE
When setting the "discrete output" mode, be careful that the selected output is not connected to
the input of any analog card to prevent it from being burned.
In this mode, there is no current control, which limits the current is the load connected to the
output.
Do not apply voltage directly to the outputs when they are in "discrete output" mode.
Link DP/PA
In a Profibus-DP network it is common to have Link Devices DP/PA to increase the communication
rate up to 12 Mbit/s and to increase the addressing capacity, since these devices are slaves in the Profibus-
DP network and Profibus-PA network. Each Link Device may have connected several DP/PA couplers.
Siemens has a Link device DP/PA which is the IM157 model. This device works with DP/PA coupler
at a communication rate of 31.25 kbits/s and in the Profibus-DP network from 9.6 kbits/s to 12 Mbits/s. The
IM157 and each coupler must be supplied with 24 Vdc. The maximum number of field devices per link is
limited to 30 or 64 devices, but this depends on the model and the number of bytes exchanged cyclically.
When using the Link Device it is necessary to verify that the cyclic modules for Vivace Process
Instruments equipment are included in your GSD file.
If they are not, they should be included. To do so, access the Siemens website and download the GSD
tool. This is a tool that allows you to extend the GSD file from Siemens links devices (IM157, IM53) by
adding the modules of new Profibus-PA devices that are not in the GSD file. You must have the GSD of
the link device and the Vivace device in the directory where the GSD Tool was installed and when
running, choose the option to extend the GSD file of the link device, choose the link model and GSD of the
device and run. After execution, note that a section has been created for the Vivace equipment with its
cyclic modules
.
