VME-PROF-S compete independent PROFIBUS-DP-Slave

The DMS device does meet all EMV requirements under the following conditions:
1. The device is operated in a DMS rack with CE certification.
All devices of a VMEbus system need to comply with the EU guidelines on electromagnetic compatibility (#89/336/EWG) (i.e. must feature a CE symbol).
2. The VMEbus-system frame ground must be connected to the system ground through a
low resistance cable.
3. PROFIBUS systems must employ cables and connectors that are recommended by
DMS or that are compatible with those recommended by DMS (see Chapter 3.2.1.1).
4. Shielded Cables are to be used for all additional data connections. All connectors (jacks,
sockets, and plugs) must be fitted with a metal shielding. The protective case must be
connected bidirectionally conducting with the cable shielding. In order to prevent
transient currents within the GND shielding, the potential drop needs to be compensated
for by means of bonding.
5. Data cables must not be installed near the mains lead or near cables with a high
throughput or switching high inductance loads.
6. When installed outdoors all cables that may be subjected to excessive voltages (e.g.
lightning) are to be fitted with lightning arresters or to be protected by metal tubes.
7. All slots of a system rack that are not currently in use need to be closed by an
electrically conducting front panel.
8. During operation and installation of the device – special care is required with respect to
electrostatic discharge (ESD – see also EN 10015-1 Basic Specification: Protection of
electrostatic sensitive devices).

VME-PROF-S

The VME-PROF-S is a compete independent PROFIBUS-DP-Slave
interface on an VMEbus board. The interface is based on the SPC3-ASIC
which handles the layer 1 / 2 of the PROFIBUS protocol (DIN 19245 / EN
50170) and the MC68331 processor. 64 kB dualport-RAM are used as data
interface to the VMEbus. With the PROFIBUS-DP-Slave
firmware (DPS), the VME-PROF-S builds a independent arbitrary
configurable DP-Slave interface. The slave is configured through the dualport-RAM. The configuration can be
build with max. 32 configuration bytes and can use up to 244 input bytes and
244 output bytes. The total amount of input / output data can be 400 bytes.
Due to the arbitrary configuration the Slave can fit the requirements of the
VMEbus system or the VME-PROF-S can be used to simulate other Slaves.