Power Supply Connector; Profibus Connector - Omron GRT1 - 27-11-2006 Operation Manual

Unit Components
2-1-4

Power Supply Connector

2-1-5

PROFIBUS Connector

9
6
Note
The PROFIBUS Communication Unit provides two 24VDC power supply ter-
minals on the front of the Unit.
System Power supply terminals
External I/O Power supply terminals
Power supply
terminals
Unit power sup-
ply terminals
I/O power supply
terminals
Note System Power supply and External I/O power supply are not transferred
through the GCN2-100 Turnback cable. The GRT1-TBR units provide the
same set of Power supply terminals as the PROFIBUS Communication Unit.
The PROFIBUS connector on the font of the Unit is a 9-pin female sub-D con-
nector, as recommended by the PROFIBUS standard EN50170.
Pin No. Signal
1 Shield
5
2 --
3 B-line
4 RTS
5 DGND
6 VP
7 --
1
8 A-line
9 -
The signal RTS (TTL signal) is for the direction control of repeaters, which do
not have a self-controlling capability.
The signals DGND and VP are used to power the bus terminator located in
the cable connector.
1. The orientation of the sub-D connector allows the use of PROFIBUS con-
nectors with a 90° angle cable outlet, e.g ERNI, Delconec and Phoenix.
2. The 9-pin sub-D connector uses #4/40 UNC thread for mechanical fixation
of the cable connector. Make sure that if non-standard PROFIBUS connec-
tors are used, the same thread is used on the cable connector.
3. PROFIBUS DP Baud rate setting is accomplished through automatic de-
tection, all the defined PROFIBUS DP baud rate values are supported.
Holes for wires
(pin terminals)
24 VDC
24 VDC
Description
These terminals supply power to the PROFIBUS Communication
Unit's internal circuits as well as the connected SmartSlice I/O
Units' internal circuits (supplied through the SmartSlice bus).
These terminals supply power to the external I/O that is con-
nected to the System's SmartSlice I/O Units.
Shield/protective ground
Receive/Transmit data - plus (B wire)
Control signal for repeaters (direction control) (TTL)
Data ground (reference potential for VP)
Supply voltage of the terminator resistance (5 Vdc)
Receive/Transmit data - minus (A wire)
-
Section 2-1
Release button
Description
15