Rockwell Automation T8449 Trusted TMR 24V dc Valve Monitor Module - 40 Channel - Manual (Page 32)

Trusted
TM
Module T8449
Issue 13 Apr 10 PD-T8449 32
The FCR Status channel reports the fault status of the active and standby modules. The value is bit-
packed as shown below, the least significant byte is used with the most significant 8-bits set to zero:
Bit Number
7
6 5 4 3 2 1 0
Standby Module Active Module
Ejector
open FCR C
Healthy FCR B
Healthy FCR A
Healthy Ejectors
open FCR C
Healthy FCR B
Healthy FCR A
Healthy
Table 18 Rack 10 FCR bit descriptions
The ‘Primary Module is active’ channel is set to non-zero if the primary module is the current active
module, i.e. the active module is in the chassis and slot numbers defined within the OEM parameters.
The ‘Active Module is simulated’ channel is set to non-zero if the active module is being simulated, this
will only be set if the module is not present or the simulation enable has been set within the module’s
configuration in the system.ini file.
3.2.11. Available MUX Channels
Valve test information is available through the use of a logical data multiplexer (or mux). The user
requests a specific data item by writing an index value to the MXOUT signal (Rack 5). The module will
respond by setting the MXIN value (Rack 4) to the same value as the MXOUT signal, and by providing
the requested data item in MXDAT (Rack 4).
Changes to MXOUT do not have an immediate effect. One or more application scans is required
before MXIN and MXDAT will reflect the changes made to MXOUT.