Communication protocols
PROGRAMMING MANUAL
243
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WDOG when an error occurs in the GRT1-ML2. 4000 hex equals 0100 0000
0000 0000 binary. Bit 14 is the overall error bit, which is set to 1 when an
error occurs.
4.8.4
Table registration
The table registration function registers the configuration of the SmartSlice I/
O Units that are connected to the GRT1-ML2 in a table in the GRT1-ML2.
This allows for a comparison of the actual configuration when the power is
turned on with the registered configuration.
•
To enable the registered table, make sure that unit dipswitch 1 (REGS) is
set to ON before the power is turned on.
•
To disable the registered table, make sure that unit dipswitch 1 (REGS)
is set to OFF before the power is turned on. In this case, the GRT1-ML2
automatically detects the actual I/O configuration and starts the
communication.
Create a new registration table
To register the table, make sure the power of the GRT1-ML2 and the
SmartSlice I/O Units is on, and set unit dipswitch 1 (REGS) on the GRT1-
ML2 from OFF to ON. If the registration table is refreshed, the old
registration table is erased.
The configuration information that is registered contains these items:
•
The order of the SmartSlice I/O Units connected to the GRT1-ML2.
•
The I/O size (input or output, number of bits) of each SmartSlice I/O Unit.
The configuration information does not contain the model numbers of the
SmartSlice I/O Units.
Note
It is recommended to register the I/O configuration table when all
SmartSlice I/O Units are communicating, that is, when the TS LED
is lit green.