VAMP 257
Feeder and motor manager
Technical description
VAMP Ltd
122
VAMP 24h support phone : +358 (0)20 753 3264
VM257.EN002
4.6.2.
Pin assignment of the front communication
port
Figure 4.6.2-1. Pin numbering of the front communication port
Port (LOCAL)
Pin
Signal
Front
1
Front
2
RX /RS-232 in
Front
3
TX /RS-232 out
Front
4
DTR / +8Vout
Front
5
GND
Front
6
DSR / in
Front
7
Front
8
Front
9
NOTE!
DSR must be connected to DTR to activate the front panel
interface.
4.6.3.
Protocols
SPA-Bus
The manager has full support for the SPA-Bus protocol
including the following features:
•
event transfer
•
time synchronization
•
the transfer of status data
•
the transfer of measurement data
•
the reception of control commands
•
the reading and writing of setting values
•
the reading of multiple consecutive status data bits,
measurement values or setting values with one
message.
The physical connection from a manager is by default 9-pin D-
connector with TTL level signals. This can only be used to
connect to an external bus connection device or to a modem.
Alternatively, RS-232 can be selected with a dip switch.
The manager can be equipped with a fibre optic option module,
which includes fibre optic connectors (two plastic/two glass/one
plastic and one glass).