Instruction Manual

Logic Functions - Book 1
REMOTE I/O INTERFACE MODULE BLOCK
6-9
20
I/O Module Mismatch (MODMM).......................................................................................– – R
Even though the I/O mismatch diagnostic may be suppressed and its value not stored with the
active I/O mismatch attribute, the actual I/O mismatch condition can still be determined by this
attribute (value is unsuppressed). This attribute is used to determine if there is an I/O
mismatch when changing the I/O mismatch diagnostic from suppressed to enabled.
NO 0 Diagnostic error is not active.
YES 1 Diagnostic error is active
21
Slots (SLOT)...................................................................................................................... C – R
The slot (module location) number of the Remote I/O Interface Module is read as the lower of
the two slot numbers (1=1-2). Two numbers are displayed for configuration purposes (1-2, 2-
3, 3-4... through 31-32) because the module is double wide (note that locations 14-15F and
18-19F indicate they are valid only for the flush mount form of the Modcell processor).
22
Module Identification (MODID) ........................................................................................– – R.
The RIO module identification number, in hex, as read from the module. Currently only
FB0000.
23
Extended Error (EXTERR) ............................................................................................... – WR
The error code as read from the RIO module. Presently not supported.
30
Bus Error Counter (BUSERRCT)..................................................................................... – WR
Wrap-around counter which provides a free running count (0 to 65535) of the quantity of CS-
31 bus communication errors. (Errors in communication between the RIO module and the
instrument are counted in Interface Block Attributes 132 - MDNORSPS and 133-
MDCHKSMS.)