Rev 20.11.2019
V1.07 - Page 46
Subject to modifications!
romutec Steuer.-und Regelsysteme GmbH Jochsberger Straße 39 D-91592 Buch am Wald
www.romutec.de
Subject to technical changes
D7 - Overview of Registers which all modules have in common
In the following descriptions of the register settings,
default values
, if any, are
highlighted
. These settings
are suitable for most applications and at the initial commissioning.
The values in the underlined registers are stored in non-volatile memory. These registers should not be
written continuously.
(
*
)
The registers marked with this asterisk can be read or written only individually, not as a
contiguous block.
R 2
(
*
)
Value Dec Setting the baud rate
Using this register, the baud rate is set. So that this setting will
take effect, the automatic baud rate detection (autobaud) must
be deactivated in register R 3.
Note:
This register is not suitable to display the current baud
rate if autobauding is enabled. For this purpose, the register
R 22 may be used.
1
57.600 Baud
2
38.400 Baud
3
19.200 Baud
4
9.600 Baud
R 3
(
*
)
Value Dec Automatic baud rate detection
The setting in this register determines whether autobauding
should be enabled or whether the module operates at a fixed
baud rate, which is configured in register R 2.
Note:
For continuous operation in the plant, the autobaud
function should be disabled. Instead, the modules should be
operated with a fixed baud rate.
0
Autobaud function is disabled
1
Autobaud is enabled during the first 5 minutes after a cold start
255
Autobaud function is enabled
R 4
(
*
)
Value
Bus Timeout
If no valid bus telegram is received for the time which is set in
this register, possibly existing outputs will assume the states and
values that are defined as "Safe State" (see registers R 2535
and R 2521 ... R 2528 at romod 8AO eco or registers R 2135
and R 2121 at romod 8DO [-R] eco and 4DO-R eco). As soon as
bus telegrams are received again, the outputs will revert to their
states sent via the MODBus to the module. Moreover the LED
flashes orange over green steady light again. The value in
register R 4 is given in decimal, the unit is ‘seconds’.
60
Bus timeout = 60 seconds
0
Timeout and Safe State function disabled
