Omron GRT1 - 27-11-2006, Operation Manual

Page: 31 / 111

12
Unit Components
Section 2-1
2-1 Unit Components
2-1-1 Nomenclature
The illustration below shows the Status LED indicators, the PROFIBUS
address switches, and a 9-pin female sub-D connector on the front side of the
PROFIBUS Communication Unit. Each of these components are explained in
the following sections.
2-1-2 LED Indicators
The GRT1-PRT PROFIBUS Communication Unit is fitted with six LED indica-
tors to indicate the operational mode and status of the Unit and the PROFI-
BUS network.
Indicator Specifications
DIP Switch
Sets the I/O allocation method and registers the I/O Unit
configuration information.
SW1 (REGS): Create/enable registration table.
SW2 (NC): Not used, set to OFF
SW3 (ADR): Automatic restore
SW4 (BACK): Backup trigger
Rotary switches
Set the Unit's address as a PROFIBUS
Slave. Set a decimal node address between
0 and 99.
PROFIBUS communications connector
Connect the PROFIBUS network's
communications cable to this connector.
Indicators
Unit power supply terminals
Connect the power supply for the Unit's internal circuits
and the connected SmartSlice I/O Units' internal circuits.
I/O power supply terminals
Connect the power supply for the connected
SmartSlice I/O Units' external I/O.
Refer to 2-1-1 LED Indicators for details.
x10 x10 x1 x1
0
2
3
4
5 6
7
8
9
1
0
2
3
4
5 6
7
8
9
1
BUS BUS
ON ON
+V +V
- V
+V +V
-V -V
UNIT UNIT
DC24V DC24V
INPUT
INPUT
REGS REGS
NC
NC
ADR
ADR
BACK
BACK
1
2
3
4
RUN RUN
ERR ERR
BF BF
TS TS
UNIT PWR UNIT PWR
I/O PWR I/O PWR
OMRON GRT1-PRT
RUN RUN
ERR ERR
BF BF
TS TS
UNIT PWR UNIT PWR
I/O PWR I/O PWR
Indicator Colour Status Meaning
RUN
Unit status
Green Not lit • Startup test failed, Unit not operational.
• Operation stopped, due to a fatal error.
Lit Initialization successful, Unit is in normal operation.
ERR
Unit error
Red Not lit Unit is in normal operation.
Flashing A startup error has occurred
Lit • Fatal error in program execution.
• Error Log Read or Write occurred.