Communications configuring
3-230
System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
3.20.3 Software
The following must be configured to use a display device:
•
@CSU central coupling block to commission the USS master coupling
on CS7/SS4 or @USS_M on T400.
•
@DIS central block to control one or several display devices on the
USS bus.
•
DIS... process data blocks for a display device to display and change
any values, and/or
•
Binary value blocks DISA1B, DISS1B for a display device to display
and change binary values, and/or
•
MSI standard message output blocks to output messages on an OP2.
NOTE
The @DIS central block as well as all of the associated "DIS" process
data- and binary value blocks must be configured on the same CPU in
the same sampling time (recommended: 30..300ms). In order to be able
to display or change process data and binary values from other CPUs at
a display device, this data must be transferred using other mechanisms
($ signals, process data communications).
Messages can be output, in parallel from several message output blocks,
at all OP2 units. As a message output block (independent of @DIS)
directly uses the USS coupling, these blocks can be configured on any
CPU and in any sampling times.
Process data blocks, binary value blocks and message output blocks can
be optionally configured. For instance, an OP2 can be exclusively used to
output just messages.
3.20.3.1
Central block @DIS
The @DIS central blocks control a maximum of 31 display devices via a
USS bus.
The display system name is specified at input DIS. Using this name, the
process data- and binary value blocks reference to the display system.
The block sets-up, for each display device, one receive- and one transmit
channel on the communications interface referenced by input CTS. As
only USS is possible as communications interface, there are no general
address inputs (AT, AR, US), but just two connections to specify which
USS station addresses are to be controlled.
Configuring
General
Data entry at input
DIS