Ovation 1C31169G01 - 2-7. Link Controller Address Locations

2-7. Link Controller Address Locations
2/99 2-31 U3-1021
Westinghouse Proprietary Class 2C
2-7. Link Controller Address Locations
An Ovation I/O module has 16 address locations, but typically does not use all 16
addresses.
There are four possible address locations in each I/O module that are reserved for
special use. Three of these addresses provide configuration (Write) and status
(Read) information:
• Address word 13 (D in Hex) is present for every module and is used for
configuration and status (see
Table 2-8). The module status provides diagnostic
information that is read by the Controller when it is on-line. The status register
can be read by using the Point Information window at an Ovation Operator
Station (see the Bit Pattern Field on the Hardware Tab).
• Address word 14 (E in Hex) is used as a secondary or expansion configuration
register and is only used when needed.
• Address word 12 (C in Hex) is used for reporting point specific fault
information and optionally as an expansion configuration register.
• Address word 15 (F in Hex), is used for the module Electronic ID information.
This location and its use is identical for all modules. Refer to
“Ovation I/O
Reference Manual” (R3-1150) for information about the Electronic ID.
Table 2-8 lists the configuration information for the Link Controller module.
Table 2-8. Link Controller Configuration Register (Address 13 or D in Hex)
Bit Configuration Register (Write) Status Register (Read)
0 Configure Module
(1 = configure; 0 = unconfigure, causing an
attention status)
Configured Module
(1 = configured; 0 = unconfigured, causing an
attention status)
1 Force Error
(1 = force an attention status to be read by
Controller; 0 = no forced error)
Forced Error
(1 = forced error to be read by Controller; 0 = no
forced error)
2 Not defined Applications time-out/
3 Not defined Not defined
4 Not defined Not defined
5 Not defined Not defined
6 Not defined Internal Error
7 Not defined External Error
8 Not defined Not defined
9 Reserved Reserved
10 Not defined Not defined
11 Not defined Not defined